Adding upstream version 2.5.0.upstream/2.5.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

227 files changed, 24777 insertions, 0 deletions

diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
new file mode 100644
index 0000000..4734b80
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,37 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+## Describe the bug
+A clear and concise description of what the issue is.
+
+## To Reproduce
+Provide a link to a live example, or an unambiguous set of steps to reproduce this issue. Include configuration, logs, etc. to reproduce, if relevant.
+
+1.
+2.
+3.
+4.
+
+## Expected behavior
+A clear and concise description of what you expected to happen.
+
+## Screenshots
+If applicable, add screenshots to help explain your problem.
+
+## Your Environment
+Include as many relevant details about the environment you experienced the problem in
+
+* Icinga Web 2 version and modules (System - About):
+* Web browser used:
+* Icinga 2 version used (`icinga2 --version`):
+* PHP version used (`php --version`):
+* Server operating system and version:
+
+## Additional context
+Add any other context about the problem here.
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
new file mode 100644
index 0000000..a7621fd
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+## Is your feature request related to a problem? Please describe.
+A clear and concise description of what the problem is. Ex. I'm always using this feature but am missing [...]
+
+## Describe the solution you'd like
+A clear and concise description of what you want to happen. 
+
+## Describe alternatives you've considered
+A clear and concise description of any alternative solutions or features you've considered.
+
+## Additional context
+Add any other context or screenshots about the feature request here.
diff --git a/.github/workflows/L10n-update.yml b/.github/workflows/L10n-update.yml
new file mode 100644
index 0000000..45599e8
--- /dev/null
+++ b/.github/workflows/L10n-update.yml
@@ -0,0 +1,20 @@
+name: L10n Update
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  trigger-update:
+    name: L10n Update Trigger
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Repository dispatch
+        uses: peter-evans/repository-dispatch@v1
+        with:
+          token: ${{ secrets.ICINGABOT_TOKEN }}
+          repository: Icinga/L10n
+          event-type: update
+          client-payload: '{"origin": "${{ github.repository }}", "commit": "${{ github.sha }}"}'
diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
new file mode 100644
index 0000000..37078bb
--- /dev/null
+++ b/.github/workflows/php.yml
@@ -0,0 +1,95 @@
+name: PHP Tests
+
+on:
+  push:
+    branches:
+      - main
+      - release/*
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  lint:
+    name: Static analysis for php ${{ matrix.php }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2']
+        os: ['ubuntu-latest']
+
+    steps:
+      - name: Checkout code base
+        uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          tools: phpcs
+
+      - name: Setup dependencies
+        run: |
+          composer require -n --no-progress overtrue/phplint
+          git clone --depth 1 https://github.com/Icinga/icingaweb2.git vendor/icingaweb2
+          git clone --depth 1 https://github.com/Icinga/icingadb-web.git vendor/icingadb-web
+          git clone --depth 1 https://github.com/Icinga/icingaweb2-module-director.git vendor/icingaweb2-module-director
+          git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-library.git vendor/icinga-php-library
+          git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-thirdparty.git vendor/icinga-php-thirdparty
+
+      - name: PHP Lint
+        if: ${{ ! cancelled() }}
+        run: ./vendor/bin/phplint -n --exclude={^vendor/.*} -- .
+
+      - name: PHP CodeSniffer
+        if: ${{ ! cancelled() }}
+        run: phpcs
+
+      - name: PHPStan
+        if: ${{ ! cancelled() }}
+        uses: php-actions/phpstan@v3
+
+  test:
+    name: Unit tests with php ${{ matrix.php }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    env:
+      phpunit-version: 8.5
+
+    strategy:
+      fail-fast: false
+      matrix:
+        php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2']
+        os: ['ubuntu-latest']
+
+    steps:
+      - name: Checkout code base
+        uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          tools: phpunit:${{ matrix.phpunit-version || env.phpunit-version }}
+
+      - name: Setup Icinga Web
+        run: |
+          git clone --depth 1 https://github.com/Icinga/icingaweb2.git _icingaweb2
+          ln -s `pwd` _icingaweb2/modules/businessprocess
+
+      - name: Setup Libraries
+        run: |
+          mkdir _libraries
+          git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-library.git _libraries/ipl
+          git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-thirdparty.git _libraries/vendor
+
+      - name: Setup dependencies
+        run: composer require -d _icingaweb2 -n --no-progress mockery/mockery
+
+      - name: PHPUnit
+        env:
+          ICINGAWEB_LIBDIR: _libraries
+          ICINGAWEB_CONFIGDIR: test/config
+        run: phpunit --verbose --bootstrap _icingaweb2/test/php/bootstrap.php
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,339 @@
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diff --git a/README.md b/README.md
new file mode 100644
index 0000000..2caf704
--- /dev/null
+++ b/README.md
@@ -0,0 +1,47 @@
+# Icinga Business Process Modeling
+
+[![PHP Support](https://img.shields.io/badge/php-%3E%3D%207.2-777BB4?logo=PHP)](https://php.net/)
+[![Build Status](https://github.com/Icinga/icingaweb2-module-businessprocess/actions/workflows/php.yml/badge.svg)](https://github.com/Icinga/icingaweb2-module-businessprocess/actions/workflows/php.yml)
+[![Github Tag](https://img.shields.io/github/tag/Icinga/icingaweb2-module-businessprocess.svg)](https://github.com/Icinga/icingaweb2-module-businessprocess/releases/latest)
+
+![Icinga Logo](https://icinga.com/wp-content/uploads/2014/06/icinga_logo.png)
+
+If you want to visualize and monitor hierarchical business processes based on
+any or all objects monitored by Icinga, the Icinga Web 2 business process
+module is the way to go.
+
+![Preview](doc/screenshot/00_preview/0005_readme-preview.png)
+
+Want to create custom process-based dashboards? Trigger notifications at
+process or sub-process level? Provide a quick top-level view for thousands of
+components on a single screen? That's what this module has been designed for!
+
+You're running a huge cloud, want to get rid of the monitoring noise triggered
+by your auto-scaling platform but still want to have detailed information just
+a couple of clicks away in case you need them? You will love this little module!
+
+Documentation
+-------------
+
+### Basics
+* [Installation](doc/02-Installation.md)
+* [Getting Started](doc/03-Getting-Started.md)
+* [Create your first process node](doc/04-Create-your-first-process-node.md)
+* [Importing Processes](doc/05-Importing-Processes.md)
+* [Customize Node Order](doc/06-Customize-Node-Order.md)
+* [State Overrides](doc/07-State-Overrides.md)
+* [Operators](doc/09-Operators.md)
+* [Controlling Access](doc/31-Permissions.md)
+
+### Web Components
+* [Breadcrumb](doc/12-Web-Components-Breadcrumb.md)
+* [Tile Renderer](doc/13-Web-Components-Tile-Renderer.md)
+* [Tree Renderer](doc/14-Web-Components-Tree-Renderer.md)
+* [Show Processes on a Dashboard](doc/16-Add-To-Dashboard.md)
+
+### Storage
+* [Store your Configuration](doc/21-Store-Config.md)
+* [Upload an existing Configuration](doc/22-Upload-Config.md)
+
+### The Project
+* [Project History](doc/81-History.md)
diff --git a/application/clicommands/CheckCommand.php b/application/clicommands/CheckCommand.php
new file mode 100644
index 0000000..d1c561f
--- /dev/null
+++ b/application/clicommands/CheckCommand.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Clicommands;
+
+class CheckCommand extends ProcessCommand
+{
+    public function listActions()
+    {
+        return array('process');
+    }
+
+    /**
+     * 'check process' is DEPRECATED, please use 'process check' instead
+     *
+     * USAGE
+     *
+     * icingacli businessprocess check process [--config <name>] <process>
+     */
+    public function processAction()
+    {
+        $this->checkAction();
+    }
+}
diff --git a/application/clicommands/CleanupCommand.php b/application/clicommands/CleanupCommand.php
new file mode 100644
index 0000000..f0041c8
--- /dev/null
+++ b/application/clicommands/CleanupCommand.php
@@ -0,0 +1,106 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Clicommands;
+
+use Exception;
+use Icinga\Application\Logger;
+use Icinga\Application\Modules\Module;
+use Icinga\Cli\Command;
+use Icinga\Module\Businessprocess\Modification\NodeRemoveAction;
+use Icinga\Module\Businessprocess\ProvidedHook\Icingadb\IcingadbSupport;
+use Icinga\Module\Businessprocess\State\IcingaDbState;
+use Icinga\Module\Businessprocess\State\MonitoringState;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+class CleanupCommand extends Command
+{
+    /**
+     * @var LegacyStorage
+     */
+    protected $storage;
+
+    protected $defaultActionName = 'cleanup';
+
+    public function init()
+    {
+        $this->storage = LegacyStorage::getInstance();
+    }
+
+    /**
+     * Cleanup all missing monitoring nodes from the specified config name
+     * If no config name is specified, the missing nodes are cleaned from all available configs.
+     * Invalid config files and file names are ignored
+     *
+     * USAGE
+     *
+     * icingacli businessprocess cleanup [<config-name>]
+     *
+     * OPTIONS
+     *
+     *   <config-name>
+     */
+    public function cleanupAction(): void
+    {
+        $configNames = (array) $this->params->shift() ?: $this->storage->listAllProcessNames();
+        $foundMissingNode = false;
+        foreach ($configNames as $configName) {
+            if (! $this->storage->hasProcess($configName)) {
+                continue;
+            }
+
+            try {
+                $bp = $this->storage->loadProcess($configName);
+            } catch (Exception $e) {
+                Logger::error(
+                    'Failed to scan the %s.conf file for missing nodes. Faulty config found.',
+                    $configName
+                );
+
+                continue;
+            }
+
+            if (Module::exists('icingadb')
+                && (! $bp->hasBackendName() && IcingadbSupport::useIcingaDbAsBackend())
+            ) {
+                IcingaDbState::apply($bp);
+            } else {
+                MonitoringState::apply($bp);
+            }
+
+            $removedNodes = [];
+            foreach (array_keys($bp->getMissingChildren()) as $missingNode) {
+                $node = $bp->getNode($missingNode);
+                $remove = new NodeRemoveAction($node);
+
+                try {
+                    if ($remove->appliesTo($bp)) {
+                        $remove->applyTo($bp);
+                        $removedNodes[] = $node->getName();
+                        $this->storage->storeProcess($bp);
+                        $bp->clearAppliedChanges();
+
+                        $foundMissingNode = true;
+                    }
+                } catch (Exception $e) {
+                    Logger::error(sprintf('(%s.conf) %s', $configName, $e->getMessage()));
+
+                    continue;
+                }
+            }
+
+            if (! empty($removedNodes)) {
+                echo sprintf(
+                    'Removed following %d missing node(s) from %s.conf successfully:',
+                    count($removedNodes),
+                    $configName
+                );
+
+                echo "\n" . implode("\n", $removedNodes) . "\n\n";
+            }
+        }
+
+        if (! $foundMissingNode) {
+            echo "No missing node found.\n";
+        }
+    }
+}
diff --git a/application/clicommands/ProcessCommand.php b/application/clicommands/ProcessCommand.php
new file mode 100644
index 0000000..018c1e3
--- /dev/null
+++ b/application/clicommands/ProcessCommand.php
@@ -0,0 +1,227 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Clicommands;
+
+use Exception;
+use Icinga\Application\Logger;
+use Icinga\Application\Modules\Module;
+use Icinga\Cli\Command;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\HostNode;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\ProvidedHook\Icingadb\IcingadbSupport;
+use Icinga\Module\Businessprocess\State\IcingaDbState;
+use Icinga\Module\Businessprocess\State\MonitoringState;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+class ProcessCommand extends Command
+{
+    /**
+     * @var LegacyStorage
+     */
+    protected $storage;
+
+    protected $hostColors = array(
+        0 => array('black', 'lightgreen'),
+        1 => array('lightgray', 'lightred'),
+        2 => array('black', 'brown'),
+        99 => array('black', 'lightgray'),
+    );
+
+    protected $serviceColors = array(
+        0 => array('black', 'lightgreen'),
+        1 => array('black', 'yellow'),
+        2 => array('lightgray', 'lightred'),
+        3 => array('black', 'lightpurple'),
+        99 => array('black', 'lightgray'),
+    );
+
+    public function init()
+    {
+        $this->storage = LegacyStorage::getInstance();
+    }
+
+    /**
+     * List all available Business Process Configurations
+     *
+     * ...or their BusinessProcess Nodes in case a Configuration name is given
+     *
+     * USAGE
+     *
+     * icingacli businessprocess list processes [<config-name>] [options]
+     *
+     * OPTIONS
+     *
+     *   <config-name>
+     *   --no-title    Show only names and no related title
+     */
+    public function listAction()
+    {
+        if ($config = $this->params->shift()) {
+            $this->listBpNames($this->storage->loadProcess($config));
+        } else {
+            $this->listConfigNames(! (bool) $this->params->shift('no-title'));
+        }
+    }
+
+    protected function listConfigNames($withTitle)
+    {
+        foreach ($this->storage->listProcesses() as $key => $title) {
+            if ($withTitle) {
+                echo $title . "\n";
+            } else {
+                echo $key . "\n";
+            }
+        }
+    }
+
+    /**
+     * Check a specific process
+     *
+     * USAGE
+     *
+     * icingacli businessprocess process check <process> [options]
+     *
+     * OPTIONS
+     *
+     *   --config <configname>   Name of the config that contains <process>
+     *   --details               Show problem details as a tree
+     *   --colors                Show colored output
+     *   --state-type <type>     Define which state type to look at. Could be
+     *                           either soft or hard, overrides an eventually
+     *                           configured default
+     *   --blame                 Show problem details as a tree reduced to the
+     *                           nodes which have the same state as the business
+     *                           process
+     *   --root-cause            Used in combination with --blame. Only shows
+     *                           the path of the nodes which are responsible for
+     *                           the state of the business process
+     *   --downtime-is-ok        Treat hosts/services in downtime always as
+     *                           UP/OK.
+     *   --ack-is-ok             Treat acknowledged hosts/services always as
+     *                           UP/OK.
+     */
+    public function checkAction()
+    {
+        $nodeName = $this->params->shift();
+        if (! $nodeName) {
+            Logger::error('A process name is required');
+            exit(1);
+        }
+
+        $name = $this->params->get('config');
+        try {
+            if ($name === null) {
+                $name = $this->getFirstProcessName();
+            }
+
+            $bp = $this->storage->loadProcess($name);
+        } catch (Exception $err) {
+            Logger::error("Can't access configuration '%s': %s", $name, $err->getMessage());
+
+            exit(3);
+        }
+
+        if (null !== ($stateType = $this->params->get('state-type'))) {
+            if ($stateType === 'soft') {
+                $bp->useSoftStates();
+            }
+            if ($stateType === 'hard') {
+                $bp->useHardStates();
+            }
+        }
+
+        try {
+            /** @var BpNode $node */
+            $node = $bp->getNode($nodeName);
+            if (Module::exists('icingadb')
+                && (! $bp->hasBackendName() && IcingadbSupport::useIcingaDbAsBackend())
+            ) {
+                IcingaDbState::apply($bp);
+            } else {
+                MonitoringState::apply($bp);
+            }
+
+            if ($bp->hasErrors()) {
+                Logger::error("Checking Business Process '%s' failed: %s\n", $name, $bp->getErrors());
+
+                exit(3);
+            }
+        } catch (Exception $err) {
+            Logger::error("Checking Business Process '%s' failed: %s", $name, $err);
+
+            exit(3);
+        }
+
+        if ($this->params->shift('ack-is-ok')) {
+            Node::setAckIsOk();
+        }
+
+        if ($this->params->shift('downtime-is-ok')) {
+            Node::setDowntimeIsOk();
+        }
+
+        printf("Business Process %s: %s\n", $node->getStateName(), $node->getAlias());
+        if ($this->params->shift('details')) {
+            echo $this->renderProblemTree($node->getProblemTree(), $this->params->shift('colors'));
+        }
+        if ($this->params->shift('blame')) {
+            echo $this->renderProblemTree(
+                $node->getProblemTreeBlame($this->params->shift('root-cause')),
+                $this->params->shift('colors')
+            );
+        }
+
+        exit($node->getState());
+    }
+
+    protected function listBpNames(BpConfig $config)
+    {
+        foreach ($config->listBpNodes() as $title) {
+            echo $title . "\n";
+        }
+    }
+
+    protected function renderProblemTree($tree, $useColors = false, $depth = 0, BpNode $parent = null)
+    {
+        $output = '';
+
+        foreach ($tree as $name => $subtree) {
+            /** @var Node $node */
+            $node = $subtree['node'];
+            $state = $parent !== null ? $parent->getChildState($node) : $node->getState();
+
+            if ($node instanceof HostNode) {
+                $colors = $this->hostColors[$state];
+            } else {
+                $colors = $this->serviceColors[$state];
+            }
+
+            $state = sprintf('[%s]', $node->getStateName($state));
+            if ($useColors) {
+                $state = $this->screen->colorize($state, $colors[0], $colors[1]);
+            }
+
+            $output .= sprintf(
+                "%s%s %s %s\n",
+                str_repeat('  ', $depth),
+                $node instanceof BpNode ? $node->getOperator() : '-',
+                $state,
+                $node->getAlias()
+            );
+
+            if ($node instanceof BpNode) {
+                $output .= $this->renderProblemTree($subtree['children'], $useColors, $depth + 1, $node);
+            }
+        }
+
+        return $output;
+    }
+
+    protected function getFirstProcessName()
+    {
+        $list = $this->storage->listProcessNames();
+        return key($list);
+    }
+}
diff --git a/application/controllers/HostController.php b/application/controllers/HostController.php
new file mode 100644
index 0000000..e22edde
--- /dev/null
+++ b/application/controllers/HostController.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Controllers;
+
+use Icinga\Application\Modules\Module;
+use Icinga\Module\Businessprocess\IcingaDbObject;
+use Icinga\Module\Businessprocess\ProvidedHook\Icingadb\IcingadbSupport;
+use Icinga\Module\Icingadb\Model\Host;
+use Icinga\Module\Monitoring\Controller;
+use Icinga\Module\Monitoring\DataView\DataView;
+use Icinga\Web\Url;
+use ipl\Stdlib\Filter;
+
+class HostController extends Controller
+{
+    /**
+     * True if business process prefers to use icingadb as backend for it's nodes
+     *
+     * @var bool
+     */
+    protected $isIcingadbPreferred;
+
+    protected function moduleInit()
+    {
+        $this->isIcingadbPreferred = Module::exists('icingadb')
+            && ! $this->params->has('backend')
+            && IcingadbSupport::useIcingaDbAsBackend();
+
+        if (! $this->isIcingadbPreferred) {
+            parent::moduleInit();
+        }
+    }
+
+    public function showAction()
+    {
+        if ($this->isIcingadbPreferred) {
+            $hostName = $this->params->shift('host');
+
+            $query = Host::on(IcingaDbObject::fetchDb());
+            IcingaDbObject::applyIcingaDbRestrictions($query);
+
+            $query->filter(Filter::equal('host.name', $hostName));
+
+            $host = $query->first();
+
+            $this->params->add('name', $hostName);
+
+            if ($host !== null) {
+                $this->redirectNow(Url::fromPath('icingadb/host')->setParams($this->params));
+            }
+        } else {
+            $hostName = $this->params->get('host');
+
+            $query = $this->backend->select()
+                ->from('hoststatus', array('host_name'))
+                ->where('host_name', $hostName);
+
+            $this->applyRestriction('monitoring/filter/objects', $query);
+            if ($query->fetchRow() !== false) {
+                $this->redirectNow(Url::fromPath('monitoring/host/show')->setParams($this->params));
+            }
+        }
+
+        $this->view->host = $hostName;
+    }
+}
diff --git a/application/controllers/IndexController.php b/application/controllers/IndexController.php
new file mode 100644
index 0000000..60ddc70
--- /dev/null
+++ b/application/controllers/IndexController.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Controllers;
+
+use Icinga\Module\Businessprocess\Web\Controller;
+use Icinga\Module\Businessprocess\Web\Component\Dashboard;
+
+class IndexController extends Controller
+{
+    /**
+     * Show an overview page
+     */
+    public function indexAction()
+    {
+        $this->setTitle($this->translate('Business Process Overview'));
+        $this->controls()->add($this->overviewTab());
+        $this->content()->add(Dashboard::create($this->Auth(), $this->storage()));
+        $this->setAutorefreshInterval(15);
+    }
+}
diff --git a/application/controllers/NodeController.php b/application/controllers/NodeController.php
new file mode 100644
index 0000000..e5c657f
--- /dev/null
+++ b/application/controllers/NodeController.php
@@ -0,0 +1,148 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Controllers;
+
+use Exception;
+use Icinga\Application\Modules\Module;
+use Icinga\Module\Businessprocess\ProvidedHook\Icingadb\IcingadbSupport;
+use Icinga\Module\Businessprocess\Renderer\Breadcrumb;
+use Icinga\Module\Businessprocess\Renderer\TileRenderer;
+use Icinga\Module\Businessprocess\Simulation;
+use Icinga\Module\Businessprocess\State\IcingaDbState;
+use Icinga\Module\Businessprocess\State\MonitoringState;
+use Icinga\Module\Businessprocess\Web\Controller;
+use Icinga\Module\Businessprocess\Web\Url;
+use ipl\Html\Html;
+use ipl\Web\Widget\Link;
+
+class NodeController extends Controller
+{
+    public function impactAction()
+    {
+        $this->setAutorefreshInterval(10);
+        $content = $this->content();
+        $this->controls()->add(
+            $this->singleTab($this->translate('Node Impact'))
+        );
+        $name = $this->params->get('name');
+        $this->addTitle($this->translate('Business Impact (%s)'), $name);
+
+        $brokenFiles = [];
+        $simulation = Simulation::fromSession($this->session());
+        foreach ($this->storage()->listProcessNames() as $configName) {
+            try {
+                $config = $this->storage()->loadProcess($configName);
+            } catch (Exception $e) {
+                $meta = $this->storage()->loadMetadata($configName);
+                $brokenFiles[$meta->get('Title')] = $configName;
+                continue;
+            }
+
+            $parents = [];
+            if ($config->hasNode($name)) {
+                foreach ($config->getNode($name)->getPaths() as $path) {
+                    array_pop($path);  // Remove the monitored node
+                    $immediateParentName = array_pop($path);  // The directly affected process
+                    $parents[] = [$config->getNode($immediateParentName), $path];
+                }
+            }
+
+            $askedConfigs = [];
+            foreach ($config->getImportedNodes() as $importedNode) {
+                $importedConfig = $importedNode->getBpConfig();
+
+                if (isset($askedConfigs[$importedConfig->getName()])) {
+                    continue;
+                } else {
+                    $askedConfigs[$importedConfig->getName()] = true;
+                }
+
+                if ($importedConfig->hasNode($name)) {
+                    $node = $importedConfig->getNode($name);
+                    $nativePaths = $node->getPaths($config);
+
+                    do {
+                        $path = array_pop($nativePaths);
+                        $importedNodePos = array_search($importedNode->getIdentifier(), $path, true);
+                        if ($importedNodePos !== false) {
+                            array_pop($path);  // Remove the monitored node
+                            $immediateParentName = array_pop($path);  // The directly affected process
+                            $importedPath = array_slice($path, $importedNodePos + 1);
+
+                            // We may get multiple native paths. Though, only the right hand of the path
+                            // is what we're interested in. The left part is not what is getting imported.
+                            $antiDuplicator = join('|', $importedPath) . '|' . $immediateParentName;
+                            if (isset($parents[$antiDuplicator])) {
+                                continue;
+                            }
+
+                            foreach ($importedNode->getPaths($config) as $targetPath) {
+                                if ($targetPath[count($targetPath) - 1] === $immediateParentName) {
+                                    array_pop($targetPath);
+                                    $parent = $importedNode;
+                                } else {
+                                    $parent = $importedConfig->getNode($immediateParentName);
+                                }
+
+                                $parents[$antiDuplicator] = [$parent, array_merge($targetPath, $importedPath)];
+                            }
+                        }
+                    } while (! empty($nativePaths));
+                }
+            }
+
+            if (empty($parents)) {
+                continue;
+            }
+
+            if (Module::exists('icingadb') &&
+                (! $config->getBackendName() && IcingadbSupport::useIcingaDbAsBackend())
+            ) {
+                IcingaDbState::apply($config);
+            } else {
+                MonitoringState::apply($config);
+            }
+            $config->applySimulation($simulation);
+
+            foreach ($parents as $parentAndPath) {
+                $renderer = (new TileRenderer($config, array_shift($parentAndPath)))
+                    ->setUrl(Url::fromPath('businessprocess/process/show', ['config' => $configName]))
+                    ->setPath(array_shift($parentAndPath));
+
+                $bc = Breadcrumb::create($renderer);
+                $bc->getAttributes()->set('data-base-target', '_next');
+                $content->add($bc);
+            }
+        }
+
+        if ($content->isEmpty()) {
+            $content->add($this->translate('No impact detected. Is this node part of a business process?'));
+        }
+
+        if (! empty($brokenFiles)) {
+            $elem = Html::tag(
+                'ul',
+                ['class' => 'broken-files'],
+                tp(
+                    'The following business process has an invalid config file and therefore cannot be read:',
+                    'The following business processes have invalid config files and therefore cannot be read:',
+                    count($brokenFiles)
+                )
+            );
+
+            foreach ($brokenFiles as $bpName => $fileName) {
+                $elem->addHtml(
+                    Html::tag(
+                        'li',
+                        new Link(
+                            sprintf('%s (%s.conf)', $bpName, $fileName),
+                            \ipl\Web\Url::fromPath('businessprocess/process/show', ['config' => $fileName])
+                        )
+                    )
+                );
+            }
+
+            $content->addHtml($elem);
+        }
+    }
+}
diff --git a/application/controllers/ProcessController.php b/application/controllers/ProcessController.php
new file mode 100644
index 0000000..208c91e
--- /dev/null
+++ b/application/controllers/ProcessController.php
@@ -0,0 +1,780 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Controllers;
+
+use Icinga\Application\Modules\Module;
+use Icinga\Date\DateFormatter;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Forms\AddNodeForm;
+use Icinga\Module\Businessprocess\Forms\EditNodeForm;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\ProvidedHook\Icingadb\IcingadbSupport;
+use Icinga\Module\Businessprocess\Renderer\Breadcrumb;
+use Icinga\Module\Businessprocess\Renderer\Renderer;
+use Icinga\Module\Businessprocess\Renderer\TileRenderer;
+use Icinga\Module\Businessprocess\Renderer\TreeRenderer;
+use Icinga\Module\Businessprocess\Simulation;
+use Icinga\Module\Businessprocess\State\IcingaDbState;
+use Icinga\Module\Businessprocess\State\MonitoringState;
+use Icinga\Module\Businessprocess\Storage\ConfigDiff;
+use Icinga\Module\Businessprocess\Storage\LegacyConfigRenderer;
+use Icinga\Module\Businessprocess\Web\Component\ActionBar;
+use Icinga\Module\Businessprocess\Web\Component\RenderedProcessActionBar;
+use Icinga\Module\Businessprocess\Web\Component\Tabs;
+use Icinga\Module\Businessprocess\Web\Controller;
+use Icinga\Util\Json;
+use Icinga\Web\Notification;
+use Icinga\Web\Url;
+use Icinga\Web\Widget\Tabextension\DashboardAction;
+use Icinga\Web\Widget\Tabextension\OutputFormat;
+use ipl\Html\Form;
+use ipl\Html\Html;
+use ipl\Html\HtmlElement;
+use ipl\Html\HtmlString;
+use ipl\Html\TemplateString;
+use ipl\Html\Text;
+use ipl\Web\Control\SortControl;
+use ipl\Web\FormElement\TermInput;
+use ipl\Web\Widget\Link;
+use ipl\Web\Widget\Icon;
+
+class ProcessController extends Controller
+{
+    /** @var Renderer */
+    protected $renderer;
+
+    /**
+     * Create a new Business Process Configuration
+     */
+    public function createAction()
+    {
+        $this->assertPermission('businessprocess/create');
+
+        $title = $this->translate('Create a new Business Process');
+        $this->setTitle($title);
+        $this->controls()
+            ->add($this->tabsForCreate()->activate('create'))
+            ->add(Html::tag('h1', null, $title));
+
+        $this->content()->add(
+            $this->loadForm('bpConfig')
+            ->setStorage($this->storage())
+            ->setSuccessUrl('businessprocess/process/show')
+            ->handleRequest()
+        );
+    }
+
+    /**
+     * Upload an existing Business Process Configuration
+     */
+    public function uploadAction()
+    {
+        $this->assertPermission('businessprocess/create');
+
+        $title = $this->translate('Upload a Business Process Config file');
+        $this->setTitle($title);
+        $this->controls()
+            ->add($this->tabsForCreate()->activate('upload'))
+            ->add(Html::tag('h1', null, $title));
+
+        $this->content()->add(
+            $this->loadForm('BpUpload')
+                ->setStorage($this->storage())
+                ->setSuccessUrl('businessprocess/process/show')
+                ->handleRequest()
+        );
+    }
+
+    /**
+     * Show a business process
+     */
+    public function showAction()
+    {
+        $bp = $this->loadModifiedBpConfig();
+        $node = $this->getNode($bp);
+
+        if (Module::exists('icingadb') &&
+            (! $bp->hasBackendName() && IcingadbSupport::useIcingaDbAsBackend())
+        ) {
+            IcingaDbState::apply($bp);
+        } else {
+            MonitoringState::apply($bp);
+        }
+
+        $this->handleSimulations($bp);
+
+        $this->setTitle($this->translate('Business Process "%s"'), $bp->getTitle());
+
+        $renderer = $this->prepareRenderer($bp, $node);
+
+        if (! $this->showFullscreen && ($node === null || ! $renderer->rendersImportedNode())) {
+            if ($this->params->get('unlocked')) {
+                $renderer->unlock();
+            }
+
+            if ($bp->isEmpty() && $renderer->isLocked()) {
+                $this->redirectNow($this->url()->with('unlocked', true));
+            }
+        }
+
+        $this->handleFormatRequest($bp, $node);
+
+        $this->prepareControls($bp, $renderer);
+
+        $this->tabs()->extend(new OutputFormat());
+
+        $this->content()->add($this->showHints($bp, $renderer));
+        $this->content()->add($this->showWarnings($bp));
+        $this->content()->add($this->showErrors($bp));
+        $this->content()->add($renderer);
+        $this->loadActionForm($bp, $node);
+        $this->setDynamicAutorefresh();
+    }
+
+    /**
+     * Create a sort control and apply its sort specification to the given renderer
+     *
+     * @param Renderer $renderer
+     * @param BpConfig $config
+     *
+     * @return SortControl
+     */
+    protected function createBpSortControl(Renderer $renderer, BpConfig $config): SortControl
+    {
+        $defaultSort = $this->session()->get('sort.default', $renderer->getDefaultSort());
+        $options = [
+            'display_name asc'  => $this->translate('Name'),
+            'state desc'        => $this->translate('State')
+        ];
+        if ($config->getMetadata()->isManuallyOrdered()) {
+            $options['manual asc'] = $this->translate('Manual');
+        } elseif ($defaultSort === 'manual desc') {
+            $defaultSort = $renderer->getDefaultSort();
+        }
+
+        $sortControl = SortControl::create($options)
+            ->setDefault($defaultSort)
+            ->setMethod('POST')
+            ->setAttribute('name', 'bp-sort-control')
+            ->on(Form::ON_SUCCESS, function (SortControl $sortControl) use ($renderer) {
+                $sort = $sortControl->getSort();
+                if ($sort === $renderer->getDefaultSort()) {
+                    $this->session()->delete('sort.default');
+                    $url = Url::fromRequest()->without($sortControl->getSortParam());
+                } else {
+                    $this->session()->set('sort.default', $sort);
+                    $url = Url::fromRequest()->with($sortControl->getSortParam(), $sort);
+                }
+
+                $this->redirectNow($url);
+            })->handleRequest($this->getServerRequest());
+
+        $renderer->setSort($sortControl->getSort());
+        $this->params->shift($sortControl->getSortParam());
+
+        return $sortControl;
+    }
+
+    protected function prepareControls($bp, $renderer)
+    {
+        $controls = $this->controls();
+
+        if ($this->showFullscreen) {
+            $controls->getAttributes()->add('class', 'want-fullscreen');
+            $controls->add(Html::tag(
+                'a',
+                [
+                    'href'  => $this->url()->without('showFullscreen')->without('view'),
+                    'title' => $this->translate('Leave full screen and switch back to normal mode')
+                ],
+                new Icon('down-left-and-up-right-to-center')
+            ));
+        }
+
+        if (! ($this->showFullscreen || $this->view->compact)) {
+            $controls->add($this->getProcessTabs($bp, $renderer));
+            $controls->getAttributes()->add('class', 'separated');
+        }
+
+        $controls->add(Breadcrumb::create(clone $renderer));
+        if (! $this->showFullscreen && ! $this->view->compact) {
+            $controls->add(
+                new RenderedProcessActionBar($bp, $renderer, $this->url())
+            );
+        }
+
+        $controls->addHtml($this->createBpSortControl($renderer, $bp));
+    }
+
+    protected function getNode(BpConfig $bp)
+    {
+        if ($nodeName = $this->params->get('node')) {
+            return $bp->getNode($nodeName);
+        } else {
+            return null;
+        }
+    }
+
+    protected function prepareRenderer($bp, $node)
+    {
+        if ($this->renderer === null) {
+            if ($this->params->get('mode') === 'tree') {
+                $renderer = new TreeRenderer($bp, $node);
+            } else {
+                $renderer = new TileRenderer($bp, $node);
+            }
+            $renderer->setUrl($this->url())
+                ->setPath($this->params->getValues('path'));
+
+            $this->renderer = $renderer;
+        }
+
+        return $this->renderer;
+    }
+
+    protected function getProcessTabs(BpConfig $bp, Renderer $renderer)
+    {
+        $tabs = $this->singleTab($bp->getTitle());
+        if ($renderer->isLocked()) {
+            $tabs->extend(new DashboardAction());
+        }
+
+        return $tabs;
+    }
+
+    protected function handleSimulations(BpConfig $bp)
+    {
+        $simulation = Simulation::fromSession($this->session());
+
+        if ($this->params->get('dismissSimulations')) {
+            Notification::success(
+                sprintf(
+                    $this->translate('%d applied simulation(s) have been dropped'),
+                    $simulation->count()
+                )
+            );
+            $simulation->clear();
+            $this->redirectNow($this->url()->without('dismissSimulations')->without('unlocked'));
+        }
+
+        $bp->applySimulation($simulation);
+    }
+
+    protected function loadActionForm(BpConfig $bp, Node $node = null)
+    {
+        $action = $this->params->get('action');
+        $form = null;
+        if ($this->showFullscreen) {
+            return;
+        }
+
+        $canEdit =  $bp->getMetadata()->canModify();
+
+        if ($action === 'add' && $canEdit) {
+            $form = (new AddNodeForm())
+                ->setProcess($bp)
+                ->setParentNode($node)
+                ->setStorage($this->storage())
+                ->setSession($this->session())
+                ->on(AddNodeForm::ON_SUCCESS, function () {
+                    $this->redirectNow(Url::fromRequest()->without('action'));
+                })
+                ->handleRequest($this->getServerRequest());
+
+            if ($form->hasElement('children')) {
+                /** @var TermInput $childrenElement */
+                $childrenElement = $form->getElement('children');
+                foreach ($childrenElement->prepareMultipartUpdate($this->getServerRequest()) as $update) {
+                    if (! is_array($update)) {
+                        $update = [$update];
+                    }
+
+                    $this->addPart(...$update);
+                }
+            }
+        } elseif ($action === 'cleanup' && $canEdit) {
+            $form = $this->loadForm('CleanupNode')
+                ->setSuccessUrl(Url::fromRequest()->without('action'))
+                ->setProcess($bp)
+                ->setSession($this->session())
+                ->handleRequest();
+        } elseif ($action === 'editmonitored' && $canEdit) {
+            $form = (new EditNodeForm())
+                ->setProcess($bp)
+                ->setNode($bp->getNode($this->params->get('editmonitorednode')))
+                ->setParentNode($node)
+                ->setSession($this->session())
+                ->on(EditNodeForm::ON_SUCCESS, function () {
+                    $this->redirectNow(Url::fromRequest()->without(['action', 'editmonitorednode']));
+                })
+                ->handleRequest($this->getServerRequest());
+        } elseif ($action === 'delete' && $canEdit) {
+            $form = $this->loadForm('DeleteNode')
+                ->setSuccessUrl(Url::fromRequest()->without('action'))
+                ->setProcess($bp)
+                ->setNode($bp->getNode($this->params->get('deletenode')))
+                ->setParentNode($node)
+                ->setSession($this->session())
+                ->handleRequest();
+        } elseif ($action === 'edit' && $canEdit) {
+            $form = $this->loadForm('Process')
+                ->setSuccessUrl(Url::fromRequest()->without('action'))
+                ->setProcess($bp)
+                ->setNode($bp->getNode($this->params->get('editnode')))
+                ->setSession($this->session())
+                ->handleRequest();
+        } elseif ($action === 'simulation') {
+            $form = $this->loadForm('simulation')
+                ->setSuccessUrl(Url::fromRequest()->without('action'))
+                ->setNode($bp->getNode($this->params->get('simulationnode')))
+                ->setSimulation(Simulation::fromSession($this->session()))
+                ->handleRequest();
+        } elseif ($action === 'move') {
+            $successUrl = $this->url()->without(['action', 'movenode']);
+            if ($this->params->get('mode') === 'tree') {
+                // If the user moves a node from a subtree, the `node` param exists
+                $successUrl->getParams()->remove('node');
+            }
+
+            if ($this->session()->get('sort.default')) {
+                // If there's a default sort specification in the session, it can only be `display_name desc`,
+                // as otherwise the user wouldn't be able to trigger this action. So it's safe to just define
+                // descending manual order now.
+                $successUrl->getParams()->add(SortControl::DEFAULT_SORT_PARAM, 'manual desc');
+            }
+
+            $form = $this->loadForm('MoveNode')
+                ->setSuccessUrl($successUrl)
+                ->setProcess($bp)
+                ->setParentNode($node)
+                ->setSession($this->session())
+                ->setNode($bp->getNode($this->params->get('movenode')))
+                ->handleRequest();
+        }
+
+        if ($form) {
+            $this->content()->prepend(HtmlString::create((string) $form));
+        }
+    }
+
+    protected function setDynamicAutorefresh()
+    {
+        if (! $this->isXhr()) {
+            // This will trigger the very first XHR refresh immediately on page
+            // load. Please not that this may hammer the server in case we would
+            // decide to use autorefreshInterval for HTML meta-refreshes also.
+            $this->setAutorefreshInterval(1);
+            return;
+        }
+
+        if ($this->params->has('action')) {
+            if ($this->params->get('action') !== 'add') {
+                // The new add form uses the term input, which doesn't support value persistence across refreshes
+                $this->setAutorefreshInterval(45);
+            }
+        } else {
+            $this->setAutorefreshInterval(10);
+        }
+    }
+
+    protected function showWarnings(BpConfig $bp)
+    {
+        if ($bp->hasWarnings()) {
+            $ul = Html::tag('ul', array('class' => 'warning'));
+            foreach ($bp->getWarnings() as $warning) {
+                $ul->add(Html::tag('li')->setContent($warning));
+            }
+
+            return $ul;
+        } else {
+            return null;
+        }
+    }
+
+    protected function showErrors(BpConfig $bp)
+    {
+        if ($bp->hasWarnings()) {
+            $ul = Html::tag('ul', array('class' => 'error'));
+            foreach ($bp->getErrors() as $msg) {
+                $ul->add(Html::tag('li')->setContent($msg));
+            }
+
+            return $ul;
+        } else {
+            return null;
+        }
+    }
+
+    protected function showHints(BpConfig $bp, Renderer $renderer)
+    {
+        $ul = Html::tag('ul', ['class' => 'error']);
+        $this->prepareMissingNodeLinks($ul);
+        foreach ($bp->getErrors() as $error) {
+            $ul->addHtml(Html::tag('li', $error));
+        }
+
+        if ($bp->hasChanges()) {
+            $li = Html::tag('li')->setSeparator(' ');
+            $li->add(sprintf(
+                $this->translate('This process has %d pending change(s).'),
+                $bp->countChanges()
+            ))->add(Html::tag(
+                'a',
+                [
+                    'href' => Url::fromPath('businessprocess/process/config')
+                        ->setParams($this->getRequest()->getUrl()->getParams())
+                ],
+                $this->translate('Store')
+            ))->add(Html::tag(
+                'a',
+                ['href' => $this->url()->with('dismissChanges', true)],
+                $this->translate('Dismiss')
+            ));
+            $ul->add($li);
+        }
+
+        if ($bp->hasSimulations()) {
+            $li = Html::tag('li')->setSeparator(' ');
+            $li->add(sprintf(
+                $this->translate('This process shows %d simulated state(s).'),
+                $bp->countSimulations()
+            ))->add(Html::tag(
+                'a',
+                ['href' => $this->url()->with('dismissSimulations', true)],
+                $this->translate('Dismiss')
+            ));
+            $ul->add($li);
+        }
+
+        if (! $renderer->isLocked() && $renderer->appliesCustomSorting()) {
+            $ul->addHtml(Html::tag('li', null, [
+                Text::create($this->translate('Drag&Drop disabled. Custom sort order applied.')),
+                (new Form())
+                    ->setAttribute('class', 'inline')
+                    ->addElement('submitButton', SortControl::DEFAULT_SORT_PARAM, [
+                        'label' => $this->translate('Reset to default'),
+                        'value' => $renderer->getDefaultSort(),
+                        'class' => 'link-button'
+                    ])
+                    ->addElement('hidden', 'uid', ['value' => 'bp-sort-control'])
+            ])->setSeparator(' '));
+        }
+
+        if (! $ul->isEmpty()) {
+            return $ul;
+        } else {
+            return null;
+        }
+    }
+
+    protected function prepareMissingNodeLinks(HtmlElement $ul): void
+    {
+        $missing = array_keys($this->bp->getMissingChildren());
+        if (! empty($missing)) {
+            $missingLinkedNodes = null;
+            foreach ($this->bp->getImportedNodes() as $process) {
+                if ($process->hasMissingChildren()) {
+                    $missingLinkedNodes = array_keys($process->getMissingChildren());
+                    $link = Url::fromPath('businessprocess/process/show')
+                        ->addParams(['config' => $process->getConfigName()]);
+
+                    $ul->addHtml(Html::tag(
+                        'li',
+                        [
+                            TemplateString::create(
+                                tp(
+                                    'Linked node %s has one missing child node: {{#link}}Show{{/link}}',
+                                    'Linked node %s has %d missing child nodes: {{#link}}Show{{/link}}',
+                                    count($missingLinkedNodes)
+                                ),
+                                $process->getAlias(),
+                                count($missingLinkedNodes),
+                                ['link' => new Link(null, (string) $link)]
+                            )
+                        ]
+                    ));
+                }
+            }
+
+            if (! empty($missingLinkedNodes)) {
+                return;
+            }
+
+            $count = count($missing);
+            if ($count > 10) {
+                $missing = array_slice($missing, 0, 10);
+                $missing[] = '...';
+            }
+
+            $link = Url::fromPath('businessprocess/process/show')
+                ->addParams(['config' => $this->bp->getName(), 'action' => 'cleanup']);
+
+            $ul->addHtml(Html::tag(
+                'li',
+                [
+                    TemplateString::create(
+                        tp(
+                            '{{#link}}Cleanup{{/link}} one missing node: %2$s',
+                            '{{#link}}Cleanup{{/link}} %d missing nodes: %s',
+                            count($missing)
+                        ),
+                        ['link' => new Link(null, (string) $link)],
+                        $count,
+                        implode(', ', $missing)
+                    )
+                ]
+            ));
+        }
+    }
+
+    /**
+     * Show the source code for a process
+     */
+    public function sourceAction()
+    {
+        $this->assertPermission('businessprocess/modify');
+
+        $bp = $this->loadModifiedBpConfig();
+        $this->view->showDiff = $showDiff = (bool) $this->params->get('showDiff', false);
+
+        $this->view->source = LegacyConfigRenderer::renderConfig($bp);
+        if ($this->view->showDiff) {
+            $this->view->diff = ConfigDiff::create(
+                $this->storage()->getSource($this->view->configName),
+                $this->view->source
+            );
+            $title = sprintf(
+                $this->translate('%s: Source Code Differences'),
+                $bp->getTitle()
+            );
+        } else {
+            $title = sprintf(
+                $this->translate('%s: Source Code'),
+                $bp->getTitle()
+            );
+        }
+
+        $this->setTitle($title);
+        $this->controls()
+            ->add($this->tabsForConfig($bp)->activate('source'))
+            ->add(Html::tag('h1', null, $title))
+            ->add($this->createConfigActionBar($bp, $showDiff));
+
+        $this->setViewScript('process/source');
+    }
+
+    /**
+     * Download a process configuration file
+     */
+    public function downloadAction()
+    {
+        $this->assertPermission('businessprocess/modify');
+
+        $config = $this->loadModifiedBpConfig();
+        $response = $this->getResponse();
+        $response->setHeader(
+            'Content-Disposition',
+            sprintf(
+                'attachment; filename="%s.conf";',
+                $config->getName()
+            )
+        );
+        $response->setHeader('Content-Type', 'text/plain');
+
+        echo LegacyConfigRenderer::renderConfig($config);
+        $this->doNotRender();
+    }
+
+    /**
+     * Modify a business process configuration
+     */
+    public function configAction()
+    {
+        $this->assertPermission('businessprocess/modify');
+
+        $bp = $this->loadModifiedBpConfig();
+
+        $title = sprintf(
+            $this->translate('%s: Configuration'),
+            $bp->getTitle()
+        );
+        $this->setTitle($title);
+        $this->controls()
+            ->add($this->tabsForConfig($bp)->activate('config'))
+            ->add(Html::tag('h1', null, $title))
+            ->add($this->createConfigActionBar($bp));
+
+        $url = Url::fromPath('businessprocess/process/show')
+            ->setParams($this->getRequest()->getUrl()->getParams());
+        $this->content()->add(
+            $this->loadForm('bpConfig')
+                ->setProcess($bp)
+                ->setStorage($this->storage())
+                ->setSuccessUrl($url)
+                ->handleRequest()
+        );
+    }
+
+    protected function createConfigActionBar(BpConfig $config, $showDiff = false)
+    {
+        $actionBar = new ActionBar();
+
+        if ($showDiff) {
+            $params = array('config' => $config->getName());
+            $actionBar->add(Html::tag(
+                'a',
+                [
+                    'href'  => Url::fromPath('businessprocess/process/source', $params),
+                    'title' => $this->translate('Show source code')
+                ],
+                [
+                    new Icon('file-lines'),
+                    $this->translate('Source'),
+                ]
+            ));
+        } else {
+            $params = array(
+                'config'   => $config->getName(),
+                'showDiff' => true
+            );
+
+            $actionBar->add(Html::tag(
+                'a',
+                [
+                    'href'  => Url::fromPath('businessprocess/process/source', $params),
+                    'title' => $this->translate('Highlight changes')
+                ],
+                [
+                    new Icon('shuffle'),
+                    $this->translate('Diff')
+                ]
+            ));
+        }
+
+        $actionBar->add(Html::tag(
+            'a',
+            [
+                'href'      => Url::fromPath('businessprocess/process/download', ['config' => $config->getName()]),
+                'target'    => '_blank',
+                'title'     => $this->translate('Download process configuration')
+            ],
+            [
+                new Icon('download'),
+                $this->translate('Download')
+            ]
+        ));
+
+        return $actionBar;
+    }
+
+    protected function tabsForShow()
+    {
+        return $this->tabs()->add('show', array(
+            'label' => $this->translate('Business Process'),
+            'url'   => $this->url()
+        ));
+    }
+
+    /**
+     * @return Tabs
+     */
+    protected function tabsForCreate()
+    {
+        return $this->tabs()->add('create', array(
+            'label' => $this->translate('Create'),
+            'url'   => 'businessprocess/process/create'
+        ))->add('upload', array(
+            'label' => $this->translate('Upload'),
+            'url'   => 'businessprocess/process/upload'
+        ));
+    }
+
+    protected function tabsForConfig(BpConfig $config)
+    {
+        $params = array(
+            'config' => $config->getName()
+        );
+
+        $tabs = $this->tabs()->add('config', array(
+            'label' => $this->translate('Process Configuration'),
+            'url'   =>Url::fromPath('businessprocess/process/config', $params)
+        ));
+
+        if ($this->params->get('showDiff')) {
+            $params['showDiff'] = true;
+        }
+
+        $tabs->add('source', array(
+            'label' => $this->translate('Source'),
+            'url'   =>Url::fromPath('businessprocess/process/source', $params)
+        ));
+
+        return $tabs;
+    }
+
+    protected function handleFormatRequest(BpConfig $bp, BpNode $node = null)
+    {
+        $desiredContentType = $this->getRequest()->getHeader('Accept');
+        if ($desiredContentType === 'application/json') {
+            $desiredFormat = 'json';
+        } elseif ($desiredContentType === 'text/csv') {
+            $desiredFormat = 'csv';
+        } else {
+            $desiredFormat = strtolower($this->params->get('format', 'html'));
+        }
+
+        switch ($desiredFormat) {
+            case 'json':
+                $response = $this->getResponse();
+                $response
+                    ->setHeader('Content-Type', 'application/json')
+                    ->setHeader('Cache-Control', 'no-store')
+                    ->setHeader(
+                        'Content-Disposition',
+                        'inline; filename=' . $this->getRequest()->getActionName() . '.json'
+                    )
+                    ->appendBody(Json::sanitize($node !== null ? $node->toArray() : $bp->toArray()))
+                    ->sendResponse();
+                exit;
+            case 'csv':
+                $csv = fopen('php://temp', 'w');
+
+                fputcsv($csv, ['Path', 'Name', 'State', 'Since', 'In_Downtime']);
+
+                foreach ($node !== null ? $node->toArray(null, true) : $bp->toArray(true) as $node) {
+                    $data = [$node['path'], $node['name']];
+
+                    if (isset($node['state'])) {
+                        $data[] = $node['state'];
+                    }
+
+                    if (isset($node['since'])) {
+                        $data[] = DateFormatter::formatDateTime($node['since']);
+                    }
+
+                    if (isset($node['in_downtime'])) {
+                        $data[] = $node['in_downtime'];
+                    }
+
+                    fputcsv($csv, $data);
+                }
+
+                $response = $this->getResponse();
+                $response
+                    ->setHeader('Content-Type', 'text/csv')
+                    ->setHeader('Cache-Control', 'no-store')
+                    ->setHeader(
+                        'Content-Disposition',
+                        'attachment; filename=' . $this->getRequest()->getActionName() . '.csv'
+                    )
+                    ->sendHeaders();
+
+                rewind($csv);
+
+                fpassthru($csv);
+
+                exit;
+        }
+    }
+}
diff --git a/application/controllers/ServiceController.php b/application/controllers/ServiceController.php
new file mode 100644
index 0000000..671d00c
--- /dev/null
+++ b/application/controllers/ServiceController.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Controllers;
+
+use Icinga\Application\Modules\Module;
+use Icinga\Module\Businessprocess\IcingaDbObject;
+use Icinga\Module\Businessprocess\ProvidedHook\Icingadb\IcingadbSupport;
+use Icinga\Module\Icingadb\Model\Service;
+use Icinga\Module\Monitoring\Controller;
+use Icinga\Module\Monitoring\DataView\DataView;
+use Icinga\Web\Url;
+use ipl\Stdlib\Filter;
+
+class ServiceController extends Controller
+{
+    /**
+     * True if business process prefers to use icingadb as backend for it's nodes
+     *
+     * @var bool
+     */
+    protected $isIcingadbPreferred;
+
+    protected function moduleInit()
+    {
+        $this->isIcingadbPreferred = Module::exists('icingadb')
+            && ! $this->params->has('backend')
+            && IcingadbSupport::useIcingaDbAsBackend();
+
+        if (! $this->isIcingadbPreferred) {
+            parent::moduleInit();
+        }
+    }
+
+    public function showAction()
+    {
+        if ($this->isIcingadbPreferred) {
+            $hostName = $this->params->shift('host');
+            $serviceName = $this->params->shift('service');
+
+            $query = Service::on(IcingaDbObject::fetchDb());
+            IcingaDbObject::applyIcingaDbRestrictions($query);
+
+            $query->filter(Filter::all(
+                Filter::equal('service.name', $serviceName),
+                Filter::equal('host.name', $hostName)
+            ));
+
+            $service = $query->first();
+
+            $this->params->add('name', $serviceName);
+            $this->params->add('host.name', $hostName);
+
+            if ($service !== null) {
+                $this->redirectNow(Url::fromPath('icingadb/service')->setParams($this->params));
+            }
+        } else {
+            $hostName = $this->params->get('host');
+            $serviceName = $this->params->get('service');
+            
+            $query = $this->backend->select()
+                ->from('servicestatus', array('service_description'))
+                ->where('host_name', $hostName)
+                ->where('service_description', $serviceName);
+
+            $this->applyRestriction('monitoring/filter/objects', $query);
+            if ($query->fetchRow() !== false) {
+                $this->redirectNow(Url::fromPath('monitoring/service/show')->setParams($this->params));
+            }
+        }
+
+        $this->view->host = $hostName;
+        $this->view->service = $serviceName;
+    }
+}
diff --git a/application/controllers/SuggestionsController.php b/application/controllers/SuggestionsController.php
new file mode 100644
index 0000000..9fa0331
--- /dev/null
+++ b/application/controllers/SuggestionsController.php
@@ -0,0 +1,372 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Controllers;
+
+use Exception;
+use Icinga\Data\Filter\Filter as LegacyFilter;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\HostNode;
+use Icinga\Module\Businessprocess\IcingaDbObject;
+use Icinga\Module\Businessprocess\ImportedNode;
+use Icinga\Module\Businessprocess\Monitoring\DataView\HostStatus;
+use Icinga\Module\Businessprocess\Monitoring\DataView\ServiceStatus;
+use Icinga\Module\Businessprocess\MonitoringRestrictions;
+use Icinga\Module\Businessprocess\ServiceNode;
+use Icinga\Module\Businessprocess\Web\Controller;
+use Icinga\Module\Icingadb\Model\Host;
+use Icinga\Module\Icingadb\Model\Service;
+use ipl\Stdlib\Filter;
+use ipl\Web\FormElement\TermInput\TermSuggestions;
+
+class SuggestionsController extends Controller
+{
+    public function processAction()
+    {
+        $ignoreList = [];
+        $forConfig = null;
+        $forParent = null;
+        if ($this->params->has('config')) {
+            $forConfig = $this->loadModifiedBpConfig();
+
+            $parentName = $this->params->get('node');
+            if ($parentName) {
+                $forParent = $forConfig->getBpNode($parentName);
+
+                $collectParents = function ($node) use ($ignoreList, &$collectParents) {
+                    foreach ($node->getParents() as $parent) {
+                        $ignoreList[$parent->getName()] = true;
+
+                        if ($parent->hasParents()) {
+                            $collectParents($parent);
+                        }
+                    }
+                };
+
+                $ignoreList[$parentName] = true;
+                if ($forParent->hasParents()) {
+                    $collectParents($forParent);
+                }
+
+                foreach ($forParent->getChildNames() as $name) {
+                    $ignoreList[$name] = true;
+                }
+            }
+        }
+
+        $suggestions = new TermSuggestions((function () use ($forConfig, $forParent, $ignoreList, &$suggestions) {
+            foreach ($this->storage()->listProcessNames() as $config) {
+                $differentConfig = false;
+                if ($forConfig === null || $config !== $forConfig->getName()) {
+                    if ($forConfig !== null && $forParent === null) {
+                        continue;
+                    }
+
+                    try {
+                        $bp = $this->storage()->loadProcess($config);
+                    } catch (Exception $_) {
+                        continue;
+                    }
+
+                    $differentConfig = true;
+                } else {
+                    $bp = $forConfig;
+                }
+
+                foreach ($bp->getBpNodes() as $bpNode) {
+                    /** @var BpNode $bpNode */
+                    if ($bpNode instanceof ImportedNode) {
+                        continue;
+                    }
+
+                    $search = $bpNode->getName();
+                    if ($differentConfig) {
+                        $search = "@$config:$search";
+                    }
+
+                    if (in_array($search, $suggestions->getExcludeTerms(), true)
+                        || isset($ignoreList[$search])
+                        || ($forParent
+                            ? $forParent->hasChild($search)
+                            : ($forConfig && $forConfig->hasRootNode($search))
+                        )
+                    ) {
+                        continue;
+                    }
+
+                    if ($suggestions->matchSearch($bpNode->getName())
+                        || (! $bpNode->hasAlias() || $suggestions->matchSearch($bpNode->getAlias()))
+                        || $bpNode->getName() === $suggestions->getOriginalSearchValue()
+                        || $bpNode->getAlias() === $suggestions->getOriginalSearchValue()
+                    ) {
+                        yield [
+                            'search' => $search,
+                            'label'  => $bpNode->getAlias() ?? $bpNode->getName(),
+                            'config' => $config
+                        ];
+                    }
+                }
+            }
+        })());
+        $suggestions->setGroupingCallback(function (array $data) {
+            return $this->storage()->loadMetadata($data['config'])->getTitle();
+        });
+
+        $this->getDocument()->addHtml($suggestions->forRequest($this->getServerRequest()));
+    }
+
+    public function icingadbHostAction()
+    {
+        $excludes = Filter::none();
+        $forConfig = null;
+        if ($this->params->has('config')) {
+            $forConfig = $this->loadModifiedBpConfig();
+
+            if ($this->params->has('node')) {
+                $nodeName = $this->params->get('node');
+                $node = $forConfig->getBpNode($nodeName);
+
+                foreach ($node->getChildren() as $child) {
+                    if ($child instanceof HostNode) {
+                        $excludes->add(Filter::equal('host.name', $child->getHostname()));
+                    }
+                }
+            }
+        }
+
+        $suggestions = new TermSuggestions((function () use ($forConfig, $excludes, &$suggestions) {
+            foreach ($suggestions->getExcludeTerms() as $excludeTerm) {
+                [$hostName, $_] = BpConfig::splitNodeName($excludeTerm);
+                $excludes->add(Filter::equal('host.name', $hostName));
+            }
+
+            $hosts = Host::on($forConfig->getBackend())
+                ->columns(['host.name', 'host.display_name'])
+                ->limit(50);
+            IcingaDbObject::applyIcingaDbRestrictions($hosts);
+            $hosts->filter(Filter::all(
+                $excludes,
+                Filter::any(
+                    Filter::like('host.name', $suggestions->getSearchTerm()),
+                    Filter::equal('host.name', $suggestions->getOriginalSearchValue()),
+                    Filter::like('host.display_name', $suggestions->getSearchTerm()),
+                    Filter::equal('host.display_name', $suggestions->getOriginalSearchValue()),
+                    Filter::like('host.address', $suggestions->getSearchTerm()),
+                    Filter::equal('host.address', $suggestions->getOriginalSearchValue()),
+                    Filter::like('host.address6', $suggestions->getSearchTerm()),
+                    Filter::equal('host.address6', $suggestions->getOriginalSearchValue()),
+                    Filter::like('host.customvar_flat.flatvalue', $suggestions->getSearchTerm()),
+                    Filter::equal('host.customvar_flat.flatvalue', $suggestions->getOriginalSearchValue()),
+                    Filter::like('hostgroup.name', $suggestions->getSearchTerm()),
+                    Filter::equal('hostgroup.name', $suggestions->getOriginalSearchValue())
+                )
+            ));
+            foreach ($hosts as $host) {
+                yield [
+                    'search' => BpConfig::joinNodeName($host->name, 'Hoststatus'),
+                    'label'  => $host->display_name,
+                    'class'  => 'host'
+                ];
+            }
+        })());
+
+        $this->getDocument()->addHtml($suggestions->forRequest($this->getServerRequest()));
+    }
+
+    public function icingadbServiceAction()
+    {
+        $excludes = Filter::none();
+        $forConfig = null;
+        if ($this->params->has('config')) {
+            $forConfig = $this->loadModifiedBpConfig();
+
+            if ($this->params->has('node')) {
+                $nodeName = $this->params->get('node');
+                $node = $forConfig->getBpNode($nodeName);
+
+                foreach ($node->getChildren() as $child) {
+                    if ($child instanceof ServiceNode) {
+                        $excludes->add(Filter::all(
+                            Filter::equal('host.name', $child->getHostname()),
+                            Filter::equal('service.name', $child->getServiceDescription())
+                        ));
+                    }
+                }
+            }
+        }
+
+        $suggestions = new TermSuggestions((function () use ($forConfig, $excludes, &$suggestions) {
+            foreach ($suggestions->getExcludeTerms() as $excludeTerm) {
+                [$hostName, $serviceName] = BpConfig::splitNodeName($excludeTerm);
+                if ($serviceName !== null && $serviceName !== 'Hoststatus') {
+                    $excludes->add(Filter::all(
+                        Filter::equal('host.name', $hostName),
+                        Filter::equal('service.name', $serviceName)
+                    ));
+                }
+            }
+
+            $services = Service::on($forConfig->getBackend())
+                ->columns(['host.name', 'host.display_name', 'service.name', 'service.display_name'])
+                ->limit(50);
+            IcingaDbObject::applyIcingaDbRestrictions($services);
+            $services->filter(Filter::all(
+                $excludes,
+                Filter::any(
+                    Filter::like('host.name', $suggestions->getSearchTerm()),
+                    Filter::equal('host.name', $suggestions->getOriginalSearchValue()),
+                    Filter::like('host.display_name', $suggestions->getSearchTerm()),
+                    Filter::equal('host.display_name', $suggestions->getOriginalSearchValue()),
+                    Filter::like('service.name', $suggestions->getSearchTerm()),
+                    Filter::equal('service.name', $suggestions->getOriginalSearchValue()),
+                    Filter::like('service.display_name', $suggestions->getSearchTerm()),
+                    Filter::equal('service.display_name', $suggestions->getOriginalSearchValue()),
+                    Filter::like('service.customvar_flat.flatvalue', $suggestions->getSearchTerm()),
+                    Filter::equal('service.customvar_flat.flatvalue', $suggestions->getOriginalSearchValue()),
+                    Filter::like('servicegroup.name', $suggestions->getSearchTerm()),
+                    Filter::equal('servicegroup.name', $suggestions->getOriginalSearchValue())
+                )
+            ));
+            foreach ($services as $service) {
+                yield [
+                    'class'  => 'service',
+                    'search' => BpConfig::joinNodeName($service->host->name, $service->name),
+                    'label'  => sprintf(
+                        $this->translate('%s on %s', '<service> on <host>'),
+                        $service->display_name,
+                        $service->host->display_name
+                    )
+                ];
+            }
+        })());
+
+        $this->getDocument()->addHtml($suggestions->forRequest($this->getServerRequest()));
+    }
+
+    public function monitoringHostAction()
+    {
+        $excludes = LegacyFilter::matchAny();
+        $forConfig = null;
+        if ($this->params->has('config')) {
+            $forConfig = $this->loadModifiedBpConfig();
+
+            if ($this->params->has('node')) {
+                $nodeName = $this->params->get('node');
+                $node = $forConfig->getBpNode($nodeName);
+
+                foreach ($node->getChildren() as $child) {
+                    if ($child instanceof HostNode) {
+                        $excludes->addFilter(LegacyFilter::where('host_name', $child->getHostname()));
+                    }
+                }
+            }
+        }
+
+        $suggestions = new TermSuggestions((function () use ($forConfig, $excludes, &$suggestions) {
+            foreach ($suggestions->getExcludeTerms() as $excludeTerm) {
+                [$hostName, $_] = BpConfig::splitNodeName($excludeTerm);
+                $excludes->addFilter(LegacyFilter::where('host_name', $hostName));
+            }
+
+            $hosts = (new HostStatus($forConfig->getBackend()->select(), ['host_name', 'host_display_name']))
+                ->limit(50)
+                ->applyFilter(MonitoringRestrictions::getRestriction('monitoring/filter/objects'))
+                ->applyFilter(LegacyFilter::matchAny(
+                    LegacyFilter::where('host_name', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('host_display_name', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('host_address', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('host_address6', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('_host_%', $suggestions->getSearchTerm()),
+                    // This also forces a group by on the query, needed anyway due to the custom var filter
+                    // above, which may return multiple rows because of the wildcard in the name filter.
+                    LegacyFilter::where('hostgroup_name', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('hostgroup_alias', $suggestions->getSearchTerm())
+                ));
+            if (! $excludes->isEmpty()) {
+                $hosts->applyFilter(LegacyFilter::not($excludes));
+            }
+
+            foreach ($hosts as $row) {
+                yield [
+                    'search' => BpConfig::joinNodeName($row->host_name, 'Hoststatus'),
+                    'label'  => $row->host_display_name,
+                    'class'  => 'host'
+                ];
+            }
+        })());
+
+        $this->getDocument()->addHtml($suggestions->forRequest($this->getServerRequest()));
+    }
+
+    public function monitoringServiceAction()
+    {
+        $excludes = LegacyFilter::matchAny();
+        $forConfig = null;
+        if ($this->params->has('config')) {
+            $forConfig = $this->loadModifiedBpConfig();
+
+            if ($this->params->has('node')) {
+                $nodeName = $this->params->get('node');
+                $node = $forConfig->getBpNode($nodeName);
+
+                foreach ($node->getChildren() as $child) {
+                    if ($child instanceof ServiceNode) {
+                        $excludes->addFilter(LegacyFilter::matchAll(
+                            LegacyFilter::where('host_name', $child->getHostname()),
+                            LegacyFilter::where('service_description', $child->getServiceDescription())
+                        ));
+                    }
+                }
+            }
+        }
+
+        $suggestions = new TermSuggestions((function () use ($forConfig, $excludes, &$suggestions) {
+            foreach ($suggestions->getExcludeTerms() as $excludeTerm) {
+                [$hostName, $serviceName] = BpConfig::splitNodeName($excludeTerm);
+                if ($serviceName !== null && $serviceName !== 'Hoststatus') {
+                    $excludes->addFilter(LegacyFilter::matchAll(
+                        LegacyFilter::where('host_name', $hostName),
+                        LegacyFilter::where('service_description', $serviceName)
+                    ));
+                }
+            }
+
+            $services = (new ServiceStatus($forConfig->getBackend()->select(), [
+                'host_name',
+                'host_display_name',
+                'service_description',
+                'service_display_name'
+            ]))
+                ->limit(50)
+                ->applyFilter(MonitoringRestrictions::getRestriction('monitoring/filter/objects'))
+                ->applyFilter(LegacyFilter::matchAny(
+                    LegacyFilter::where('host_name', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('host_display_name', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('service_description', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('service_display_name', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('_service_%', $suggestions->getSearchTerm()),
+                    // This also forces a group by on the query, needed anyway due to the custom var filter
+                    // above, which may return multiple rows because of the wildcard in the name filter.
+                    LegacyFilter::where('servicegroup_name', $suggestions->getSearchTerm()),
+                    LegacyFilter::where('servicegroup_alias', $suggestions->getSearchTerm())
+                ));
+            if (! $excludes->isEmpty()) {
+                $services->applyFilter(LegacyFilter::not($excludes));
+            }
+
+            foreach ($services as $row) {
+                yield [
+                    'class'  => 'service',
+                    'search' => BpConfig::joinNodeName($row->host_name, $row->service_description),
+                    'label'  => sprintf(
+                        $this->translate('%s on %s', '<service> on <host>'),
+                        $row->service_display_name,
+                        $row->host_display_name
+                    )
+                ];
+            }
+        })());
+
+        $this->getDocument()->addHtml($suggestions->forRequest($this->getServerRequest()));
+    }
+}
diff --git a/application/forms/AddNodeForm.php b/application/forms/AddNodeForm.php
new file mode 100644
index 0000000..3840d8a
--- /dev/null
+++ b/application/forms/AddNodeForm.php
@@ -0,0 +1,412 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Forms;
+
+use Exception;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Common\Sort;
+use Icinga\Module\Businessprocess\Modification\ProcessChanges;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\Storage\Storage;
+use Icinga\Module\Businessprocess\Web\Form\Element\IplStateOverrides;
+use Icinga\Module\Businessprocess\Web\Form\Validator\HostServiceTermValidator;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+use Icinga\Web\Session\SessionNamespace;
+use ipl\Html\HtmlElement;
+use ipl\Html\Text;
+use ipl\I18n\Translation;
+use ipl\Stdlib\Str;
+use ipl\Web\Compat\CompatForm;
+use ipl\Web\FormElement\TermInput;
+use ipl\Web\Url;
+
+class AddNodeForm extends CompatForm
+{
+    use Sort;
+    use Translation;
+
+    /** @var Storage */
+    protected $storage;
+
+    /** @var ?BpConfig */
+    protected $bp;
+
+    /** @var ?BpNode */
+    protected $parent;
+
+    /** @var SessionNamespace */
+    protected $session;
+
+    /**
+     * Set the storage to use
+     *
+     * @param Storage $storage
+     *
+     * @return $this
+     */
+    public function setStorage(Storage $storage): self
+    {
+        $this->storage = $storage;
+
+        return $this;
+    }
+
+    /**
+     * Set the affected configuration
+     *
+     * @param BpConfig $bp
+     *
+     * @return $this
+     */
+    public function setProcess(BpConfig $bp): self
+    {
+        $this->bp = $bp;
+
+        return $this;
+    }
+
+    /**
+     * Set the affected sub-process
+     *
+     * @param ?BpNode $node
+     *
+     * @return $this
+     */
+    public function setParentNode(BpNode $node = null): self
+    {
+        $this->parent = $node;
+
+        return $this;
+    }
+
+    /**
+     * Set the user's session
+     *
+     * @param SessionNamespace $session
+     *
+     * @return $this
+     */
+    public function setSession(SessionNamespace $session): self
+    {
+        $this->session = $session;
+
+        return $this;
+    }
+
+    protected function assemble()
+    {
+        if ($this->parent !== null) {
+            $title = sprintf($this->translate('Add a node to %s'), $this->parent->getAlias());
+            $nodeTypes = [
+                'host' => $this->translate('Host'),
+                'service' => $this->translate('Service'),
+                'process' => $this->translate('Existing Process'),
+                'new-process' => $this->translate('New Process')
+            ];
+        } else {
+            $title = $this->translate('Add a new root node');
+            if (! $this->bp->isEmpty()) {
+                $nodeTypes = [
+                    'process' => $this->translate('Existing Process'),
+                    'new-process' => $this->translate('New Process')
+                ];
+            } else {
+                $nodeTypes = [];
+            }
+        }
+
+        $this->addHtml(new HtmlElement('h2', null, Text::create($title)));
+
+        if (! empty($nodeTypes)) {
+            $this->addElement('select', 'node_type', [
+                'label' => $this->translate('Node type'),
+                'options' => array_merge(
+                    ['' => ' - ' . $this->translate('Please choose') . ' - '],
+                    $nodeTypes
+                ),
+                'disabledOptions' => [''],
+                'class' => 'autosubmit',
+                'required' => true,
+                'ignore' => true
+            ]);
+
+            $nodeType = $this->getPopulatedValue('node_type');
+        } else {
+            $nodeType = 'new-process';
+        }
+
+        if ($nodeType === 'new-process') {
+            $this->assembleNewProcessElements();
+        } elseif ($nodeType === 'process') {
+            $this->assembleExistingProcessElements();
+        } elseif ($nodeType === 'host') {
+            $this->assembleHostElements();
+        } elseif ($nodeType === 'service') {
+            $this->assembleServiceElements();
+        }
+
+        $this->addElement('submit', 'submit', [
+            'label' => $this->translate('Add Process')
+        ]);
+    }
+
+    protected function assembleNewProcessElements(): void
+    {
+        $this->addElement('text', 'name', [
+            'required'     => true,
+            'ignore'       => true,
+            'label'        => $this->translate('ID'),
+            'description'  => $this->translate('This is the unique identifier of this process'),
+            'validators'   => [
+                'callback' => function ($value, $validator) {
+                    if ($this->parent !== null ? $this->parent->hasChild($value) : $this->bp->hasRootNode($value)) {
+                        $validator->addMessage(
+                            sprintf($this->translate('%s is already defined in this process'), $value)
+                        );
+
+                        return false;
+                    }
+
+                    return true;
+                }
+            ]
+        ]);
+
+        $this->addElement('text', 'alias', [
+            'label'       => $this->translate('Display Name'),
+            'description' => $this->translate(
+                'Usually this name will be shown for this node. Equals ID if not given'
+            ),
+        ]);
+
+        $this->addElement('select', 'operator', [
+            'required'     => true,
+            'label'        => $this->translate('Operator'),
+            'multiOptions' => Node::getOperators()
+        ]);
+
+        $display = 1;
+        if (! $this->bp->isEmpty() && $this->bp->getMetadata()->isManuallyOrdered()) {
+            $rootNodes = self::applyManualSorting($this->bp->getRootNodes());
+            $display = end($rootNodes)->getDisplay() + 1;
+        }
+        $this->addElement('select', 'display', [
+            'required'     => true,
+            'label'        => $this->translate('Visualization'),
+            'description'  => $this->translate('Where to show this process'),
+            'value'        => $this->parent !== null ? '0' : "$display",
+            'multiOptions' => [
+                "$display" => $this->translate('Toplevel Process'),
+                '0' => $this->translate('Subprocess only'),
+            ]
+        ]);
+
+        $this->addElement('text', 'infoUrl', [
+            'label'       => $this->translate('Info URL'),
+            'description' => $this->translate('URL pointing to more information about this node')
+        ]);
+    }
+
+    protected function assembleExistingProcessElements(): void
+    {
+        $termValidator = function (array $terms) {
+            foreach ($terms as $term) {
+                /** @var TermInput\ValidatedTerm $term */
+                $nodeName = $term->getSearchValue();
+                if ($nodeName[0] === '@') {
+                    if ($this->parent === null) {
+                        $term->setMessage($this->translate('Imported nodes cannot be used as root nodes'));
+                    } elseif (strpos($nodeName, ':') === false) {
+                        $term->setMessage($this->translate('Missing node name'));
+                    } else {
+                        [$config, $nodeName] = Str::trimSplit(substr($nodeName, 1), ':', 2);
+                        if (! $this->storage->hasProcess($config)) {
+                            $term->setMessage($this->translate('Config does not exist or access has been denied'));
+                        } else {
+                            try {
+                                $bp = $this->storage->loadProcess($config);
+                            } catch (Exception $e) {
+                                $term->setMessage(
+                                    sprintf($this->translate('Cannot load config: %s'), $e->getMessage())
+                                );
+                            }
+
+                            if (isset($bp)) {
+                                if (! $bp->hasNode($nodeName)) {
+                                    $term->setMessage($this->translate('No node with this name found in config'));
+                                } else {
+                                    $term->setLabel($bp->getNode($nodeName)->getAlias());
+                                }
+                            }
+                        }
+                    }
+                } elseif (! $this->bp->hasNode($nodeName)) {
+                    $term->setMessage($this->translate('No node with this name found in config'));
+                } else {
+                    $term->setLabel($this->bp->getNode($nodeName)->getAlias());
+                }
+
+                if ($this->parent !== null && $this->parent->hasChild($term->getSearchValue())) {
+                    $term->setMessage($this->translate('Already defined in this process'));
+                }
+
+                if ($this->parent !== null && $term->getSearchValue() === $this->parent->getName()) {
+                    $term->setMessage($this->translate('Results in a parent/child loop'));
+                }
+            }
+        };
+
+        $this->addElement(
+            (new TermInput('children'))
+                ->setRequired()
+                ->setVerticalTermDirection()
+                ->setLabel($this->translate('Process Nodes'))
+                ->setSuggestionUrl(Url::fromPath('businessprocess/suggestions/process', [
+                    'node' => isset($this->parent) ? $this->parent->getName() : null,
+                    'config' => $this->bp->getName(),
+                    'showCompact' => true,
+                    '_disableLayout' => true
+                ]))
+                ->on(TermInput::ON_ENRICH, $termValidator)
+                ->on(TermInput::ON_ADD, $termValidator)
+                ->on(TermInput::ON_PASTE, $termValidator)
+                ->on(TermInput::ON_SAVE, $termValidator)
+        );
+    }
+
+    protected function assembleHostElements(): void
+    {
+        if ($this->bp->getBackend() instanceof MonitoringBackend) {
+            $suggestionsPath = 'businessprocess/suggestions/monitoring-host';
+        } else {
+            $suggestionsPath = 'businessprocess/suggestions/icingadb-host';
+        }
+
+        $this->addElement($this->createChildrenElementForObjects(
+            $this->translate('Hosts'),
+            $suggestionsPath
+        ));
+
+        $this->addElement('checkbox', 'host_override', [
+            'ignore' => true,
+            'class' => 'autosubmit',
+            'label' => $this->translate('Override Host State')
+        ]);
+        if ($this->getPopulatedValue('host_override') === 'y') {
+            $this->addElement(new IplStateOverrides('stateOverrides', [
+                'label' => $this->translate('State Overrides'),
+                'options' => [
+                    0 => $this->translate('UP'),
+                    1 => $this->translate('DOWN'),
+                    99 => $this->translate('PENDING')
+                ]
+            ]));
+        }
+    }
+
+    protected function assembleServiceElements(): void
+    {
+        if ($this->bp->getBackend() instanceof MonitoringBackend) {
+            $suggestionsPath = 'businessprocess/suggestions/monitoring-service';
+        } else {
+            $suggestionsPath = 'businessprocess/suggestions/icingadb-service';
+        }
+
+        $this->addElement($this->createChildrenElementForObjects(
+            $this->translate('Services'),
+            $suggestionsPath
+        ));
+
+        $this->addElement('checkbox', 'service_override', [
+            'ignore' => true,
+            'class' => 'autosubmit',
+            'label' => $this->translate('Override Service State')
+        ]);
+        if ($this->getPopulatedValue('service_override') === 'y') {
+            $this->addElement(new IplStateOverrides('stateOverrides', [
+                'label' => $this->translate('State Overrides'),
+                'options' => [
+                    0 => $this->translate('OK'),
+                    1 => $this->translate('WARNING'),
+                    2 => $this->translate('CRITICAL'),
+                    3 => $this->translate('UNKNOWN'),
+                    99 => $this->translate('PENDING'),
+                ]
+            ]));
+        }
+    }
+
+    protected function createChildrenElementForObjects(string $label, string $suggestionsPath): TermInput
+    {
+        $termValidator = function (array $terms) {
+            (new HostServiceTermValidator())
+                ->setParent($this->parent)
+                ->isValid($terms);
+        };
+
+        return (new TermInput('children'))
+            ->setRequired()
+            ->setLabel($label)
+            ->setVerticalTermDirection()
+            ->setSuggestionUrl(Url::fromPath($suggestionsPath, [
+                'node' => isset($this->parent) ? $this->parent->getName() : null,
+                'config' => $this->bp->getName(),
+                'showCompact' => true,
+                '_disableLayout' => true
+            ]))
+            ->on(TermInput::ON_ENRICH, $termValidator)
+            ->on(TermInput::ON_ADD, $termValidator)
+            ->on(TermInput::ON_PASTE, $termValidator)
+            ->on(TermInput::ON_SAVE, $termValidator);
+    }
+
+    protected function onSuccess()
+    {
+        $changes = ProcessChanges::construct($this->bp, $this->session);
+
+        $nodeType = $this->getValue('node_type');
+        if (! $nodeType || $nodeType === 'new-process') {
+            $properties = $this->getValues();
+            if (! $properties['alias']) {
+                unset($properties['alias']);
+            }
+
+            if ($this->parent !== null) {
+                $properties['parentName'] = $this->parent->getName();
+            }
+
+            $changes->createNode(BpConfig::escapeName($this->getValue('name')), $properties);
+        } else {
+            /** @var TermInput $term */
+            $term = $this->getElement('children');
+            $children = array_unique(array_map(function ($term) {
+                return $term->getSearchValue();
+            }, $term->getTerms()));
+
+            if ($nodeType === 'host' || $nodeType === 'service') {
+                $stateOverrides = $this->getValue('stateOverrides');
+                if (! empty($stateOverrides)) {
+                    $childOverrides = [];
+                    foreach ($children as $nodeName) {
+                        $childOverrides[$nodeName] = $stateOverrides;
+                    }
+
+                    $changes->modifyNode($this->parent, [
+                        'stateOverrides' => array_merge($this->parent->getStateOverrides(), $childOverrides)
+                    ]);
+                }
+            }
+
+            if ($this->parent !== null) {
+                $changes->addChildrenToNode($children, $this->parent);
+            } else {
+                foreach ($children as $nodeName) {
+                    $changes->copyNode($nodeName);
+                }
+            }
+        }
+
+        unset($changes);
+    }
+}
diff --git a/application/forms/BpConfigForm.php b/application/forms/BpConfigForm.php
new file mode 100644
index 0000000..8a0bc95
--- /dev/null
+++ b/application/forms/BpConfigForm.php
@@ -0,0 +1,236 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Forms;
+
+use Icinga\Authentication\Auth;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Web\Form\BpConfigBaseForm;
+
+class BpConfigForm extends BpConfigBaseForm
+{
+    protected $deleteButtonName;
+
+    public function setup()
+    {
+        $this->addElement('text', 'name', array(
+            'label' => $this->translate('ID'),
+            'required'    => true,
+            'validators' => array(
+                array(
+                    'validator' => 'StringLength',
+                    'options' => array(
+                        'min' => 2,
+                        'max' => 40
+                    )
+                ),
+                [
+                    'validator' => 'Regex',
+                    'options'   => [
+                        'pattern' => '/^[a-zA-Z0-9](?:[\w\h._-]*)?\w$/',
+                        'messages'  => [
+                            'regexNotMatch' => $this->translate(
+                                'Id must only consist of alphanumeric characters.'
+                                . ' Underscore at the beginning and space, dot and hyphen at the beginning'
+                                . ' and end are not allowed.'
+                            )
+                        ]
+                    ]
+                ]
+            ),
+            'description' => $this->translate(
+                'This is the unique identifier of this process'
+            ),
+        ));
+
+        $this->addElement('text', 'Title', array(
+            'label'       => $this->translate('Display Name'),
+            'description' => $this->translate(
+                'Usually this name will be shown for this process. Equals ID'
+                . ' if not given'
+            ),
+        ));
+
+        $this->addElement('textarea', 'Description', array(
+            'label'       => $this->translate('Description'),
+            'description' => $this->translate(
+                'A slightly more detailed description for this process, about 100-150 characters long'
+            ),
+            'rows' => 4,
+        ));
+
+        if (! empty($this->listAvailableBackends())) {
+            $this->addElement('select', 'Backend', array(
+                'label'       => $this->translate('Backend'),
+                'description' => $this->translate(
+                    'Icinga Web Monitoring Backend where current object states for'
+                    . ' this process should be retrieved from'
+                ),
+                'multiOptions' => array(
+                        null => $this->translate('Use the configured default backend'),
+                    ) + $this->listAvailableBackends()
+            ));
+        }
+
+        $this->addElement('select', 'Statetype', array(
+            'label'       => $this->translate('State Type'),
+            'required'    => true,
+            'description' => $this->translate(
+                'Whether this process should be based on Icinga hard or soft states'
+            ),
+            'multiOptions' => array(
+                'soft' => $this->translate('Use SOFT states'),
+                'hard' => $this->translate('Use HARD states'),
+            )
+        ));
+
+        $this->addElement('select', 'AddToMenu', array(
+            'label'       => $this->translate('Add to menu'),
+            'required'    => true,
+            'description' => $this->translate(
+                'Whether this process should be linked in the main Icinga Web 2 menu'
+            ),
+            'multiOptions' => array(
+                'yes' => $this->translate('Yes'),
+                'no'  => $this->translate('No'),
+            )
+        ));
+
+        $this->addElement('text', 'AllowedUsers', array(
+            'label'       => $this->translate('Allowed Users'),
+            'description' => $this->translate(
+                'Allowed Users (comma-separated)'
+            ),
+        ));
+
+        $this->addElement('text', 'AllowedGroups', array(
+            'label'       => $this->translate('Allowed Groups'),
+            'description' => $this->translate(
+                'Allowed Groups (comma-separated)'
+            ),
+        ));
+
+        $this->addElement('text', 'AllowedRoles', array(
+            'label'       => $this->translate('Allowed Roles'),
+            'description' => $this->translate(
+                'Allowed Roles (comma-separated)'
+            ),
+        ));
+
+        if ($this->bp === null) {
+            $this->setSubmitLabel(
+                $this->translate('Add')
+            );
+        } else {
+            $config = $this->bp;
+
+            $meta = $config->getMetadata();
+            foreach ($meta->getProperties() as $k => $v) {
+                if ($el = $this->getElement($k)) {
+                    $el->setValue($v);
+                }
+            }
+            $this->getElement('name')
+                 ->setValue($config->getName())
+                 ->setAttrib('readonly', true);
+
+            $this->setSubmitLabel(
+                $this->translate('Store')
+            );
+
+            $label = $this->translate('Delete');
+            $el = $this->createElement('submit', $label, array(
+                'data-base-target' => '_main'
+            ))->setLabel($label)->setDecorators(array('ViewHelper'));
+            $this->deleteButtonName = $el->getName();
+            $this->addElement($el);
+        }
+    }
+
+    protected function onSetup()
+    {
+        $this->getElement($this->getSubmitLabel())->setAttrib('data-base-target', '_main');
+    }
+
+    protected function onRequest()
+    {
+        $name = $this->getValue('name');
+
+        if ($this->shouldBeDeleted()) {
+            if ($this->bp->isReferenced()) {
+                $this->addError(sprintf(
+                    $this->translate('Process "%s" cannot be deleted as it has been referenced in other processes'),
+                    $name
+                ));
+            } else {
+                $this->bp->clearAppliedChanges();
+                $this->storage->deleteProcess($name);
+                $this->setSuccessUrl('businessprocess');
+                $this->redirectOnSuccess(sprintf('Process %s has been deleted', $name));
+            }
+        }
+    }
+
+    public function onSuccess()
+    {
+        $name = $this->getValue('name');
+
+        if ($this->bp === null) {
+            if ($this->storage->hasProcess($name)) {
+                $this->addError(sprintf(
+                    $this->translate('A process named "%s" already exists'),
+                    $name
+                ));
+
+                return;
+            }
+
+            // New config
+            $config = new BpConfig();
+            $config->setName($name);
+
+            if (! $this->prepareMetadata($config)) {
+                return;
+            }
+
+            $this->setSuccessUrl(
+                $this->getSuccessUrl()->setParams(
+                    array('config' => $name, 'unlocked' => true)
+                )
+            );
+            $this->setSuccessMessage(sprintf('Process %s has been created', $name));
+        } else {
+            $config = $this->bp;
+            $this->setSuccessMessage(sprintf('Process %s has been stored', $name));
+        }
+        $meta = $config->getMetadata();
+        foreach ($this->getValues() as $key => $value) {
+            if (! in_array($key, ['Title', 'Description', 'Backend'], true)
+                && ($value === null || $value === '')) {
+                continue;
+            }
+
+            if ($meta->hasKey($key)) {
+                $meta->set($key, $value);
+            }
+        }
+
+        $this->storage->storeProcess($config);
+        $config->clearAppliedChanges();
+        parent::onSuccess();
+    }
+
+    public function hasDeleteButton()
+    {
+        return $this->deleteButtonName !== null;
+    }
+
+    public function shouldBeDeleted()
+    {
+        if (! $this->hasDeleteButton()) {
+            return false;
+        }
+
+        $name = $this->deleteButtonName;
+        return $this->getSentValue($name) === $this->getElement($name)->getLabel();
+    }
+}
diff --git a/application/forms/BpUploadForm.php b/application/forms/BpUploadForm.php
new file mode 100644
index 0000000..a746740
--- /dev/null
+++ b/application/forms/BpUploadForm.php
@@ -0,0 +1,207 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Forms;
+
+use Exception;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Storage\LegacyConfigParser;
+use Icinga\Module\Businessprocess\Web\Form\BpConfigBaseForm;
+use Icinga\Web\Notification;
+
+class BpUploadForm extends BpConfigBaseForm
+{
+    protected $node;
+
+    protected $objectList = array();
+
+    protected $processList = array();
+
+    protected $deleteButtonName;
+
+    private $sourceCode;
+
+    /** @var BpConfig */
+    private $uploadedConfig;
+
+    public function setup()
+    {
+        $this->showUpload();
+        if ($this->hasSource()) {
+            $this->showDetails();
+        }
+    }
+
+    protected function showDetails()
+    {
+        $this->addElement('text', 'name', array(
+            'label'       => $this->translate('Name'),
+            'required'    => true,
+            'description' => $this->translate(
+                'This is the unique identifier of this process'
+            ),
+            'validators' => array(
+                array(
+                    'validator' => 'StringLength',
+                    'options' => array(
+                        'min' => 2,
+                        'max' => 40
+                    )
+                ),
+                [
+                    'validator' => 'Regex',
+                    'options'   => [
+                        'pattern'   => '/^[a-zA-Z0-9](?:[\w\h._-]*)?\w$/',
+                        'messages'  => [
+                            'regexNotMatch' => $this->translate(
+                                'Id must only consist of alphanumeric characters.'
+                                . ' Underscore at the beginning and space, dot and hyphen at the beginning'
+                                . ' and end are not allowed.'
+                            )
+                        ]
+                    ]
+                ]
+            ),
+        ));
+
+        $this->addElement('textarea', 'source', array(
+            'label'       => $this->translate('Source'),
+            'description' => $this->translate(
+                'Business process source code'
+            ),
+            'value' => $this->sourceCode,
+            'class' => 'preformatted smaller',
+            'rows'  => 7,
+        ));
+
+        $this->getUploadedConfig();
+
+        $this->setSubmitLabel(
+            $this->translate('Store')
+        );
+    }
+
+    public function getUploadedConfig()
+    {
+        if ($this->uploadedConfig === null) {
+            $this->uploadedConfig = $this->parseSubmittedSourceCode();
+        }
+
+        return $this->uploadedConfig;
+    }
+
+    protected function parseSubmittedSourceCode()
+    {
+        $code = $this->getSentValue('source');
+        $name = $this->getSentValue('name', '<new config>');
+        if (empty($code)) {
+            $code = $this->sourceCode;
+        }
+
+        try {
+            $config = LegacyConfigParser::parseString($name, $code);
+
+            if ($config->hasErrors()) {
+                foreach ($config->getErrors() as $error) {
+                    $this->addError($error);
+                }
+            }
+        } catch (Exception $e) {
+            $this->addError($e->getMessage());
+            return null;
+        }
+
+        return $config;
+    }
+
+    protected function hasSource()
+    {
+        if ($this->hasBeenSent() && $source = $this->getSentValue('source')) {
+            $this->sourceCode = $source;
+        } else {
+            $this->processUploadedSource();
+        }
+
+        if (empty($this->sourceCode)) {
+            return false;
+        } else {
+            $this->removeElement('uploaded_file');
+            return true;
+        }
+    }
+
+    protected function showUpload()
+    {
+        $this->setAttrib('enctype', 'multipart/form-data');
+
+        $this->addElement('file', 'uploaded_file', array(
+            'label'       => $this->translate('File'),
+            'destination' => $this->getTempDir(),
+            'required'    => true,
+        ));
+
+        /** @var \Zend_Form_Element_File $el */
+        $el = $this->getElement('uploaded_file');
+        $el->setValueDisabled(true);
+
+        $this->setSubmitLabel(
+            $this->translate('Next')
+        );
+    }
+
+    protected function getTempDir()
+    {
+        return sys_get_temp_dir();
+    }
+
+    protected function processUploadedSource()
+    {
+        /** @var ?\Zend_Form_Element_File $el */
+        $el = $this->getElement('uploaded_file');
+
+        if ($el && $this->hasBeenSent()) {
+            $tmpdir = $this->getTempDir();
+            $tmpfile = tempnam($tmpdir, 'bpupload_');
+
+            // TODO: race condition, try to do this without unlinking here
+            unlink($tmpfile);
+
+            $el->addFilter('Rename', $tmpfile);
+            if ($el->receive()) {
+                $this->sourceCode = file_get_contents($tmpfile);
+                unlink($tmpfile);
+            } else {
+                foreach ($el->file->getMessages() as $error) {
+                    $this->addError($error);
+                }
+            }
+        }
+
+        return $this;
+    }
+
+    public function onSuccess()
+    {
+        $config = $this->getUploadedConfig();
+        $name = $config->getName();
+
+        if ($this->storage->hasProcess($name)) {
+            $this->addError(sprintf(
+                $this->translate('A process named "%s" already exists'),
+                $name
+            ));
+
+            return;
+        }
+
+        if (! $this->prepareMetadata($config)) {
+            return;
+        }
+
+        $this->storage->storeProcess($config);
+        Notification::success(sprintf('Process %s has been stored', $name));
+
+        $this->getSuccessUrl()->setParam('config', $name);
+
+        parent::onSuccess();
+    }
+}
diff --git a/application/forms/CleanupNodeForm.php b/application/forms/CleanupNodeForm.php
new file mode 100644
index 0000000..c6e5398
--- /dev/null
+++ b/application/forms/CleanupNodeForm.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Forms;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Modification\ProcessChanges;
+use Icinga\Module\Businessprocess\Web\Form\BpConfigBaseForm;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+use Icinga\Web\Session\SessionNamespace;
+use ipl\Html\Html;
+use ipl\Sql\Connection as IcingaDbConnection;
+
+class CleanupNodeForm extends BpConfigBaseForm
+{
+    /** @var MonitoringBackend|IcingaDbConnection */
+    protected $backend;
+
+    /** @var BpConfig */
+    protected $bp;
+
+    /** @var SessionNamespace */
+    protected $session;
+
+    public function setup()
+    {
+        $this->addHtml(Html::tag('h2', $this->translate('Cleanup missing nodes')));
+
+        $this->addElement('checkbox', 'cleanup_all', [
+            'class'         => 'autosubmit',
+            'label'         => $this->translate('Cleanup all missing nodes'),
+            'description'   => $this->translate('Remove all missing nodes from config')
+        ]);
+
+        if ($this->getSentValue('cleanup_all') !== '1') {
+            $this->addElement('multiselect', 'nodes', [
+                    'label'        => $this->translate('Select nodes to cleanup'),
+                    'required'     => true,
+                    'size'         => 8,
+                    'multiOptions' => $this->bp->getMissingChildren()
+            ]);
+        }
+    }
+
+    public function onSuccess()
+    {
+        $changes = ProcessChanges::construct($this->bp, $this->session);
+
+        $nodesToCleanup = $this->getValue('cleanup_all') === '1'
+            ? array_keys($this->bp->getMissingChildren())
+            : $this->getValue('nodes');
+
+        foreach ($nodesToCleanup as $nodeName) {
+            $node = $this->bp->getNode($nodeName);
+            $changes->deleteNode($node);
+        }
+
+        unset($changes);
+
+        parent::onSuccess();
+    }
+}
diff --git a/application/forms/DeleteNodeForm.php b/application/forms/DeleteNodeForm.php
new file mode 100644
index 0000000..dba0710
--- /dev/null
+++ b/application/forms/DeleteNodeForm.php
@@ -0,0 +1,125 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Forms;
+
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Modification\ProcessChanges;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\Web\Form\BpConfigBaseForm;
+use Icinga\Web\View;
+
+class DeleteNodeForm extends BpConfigBaseForm
+{
+    /** @var Node */
+    protected $node;
+
+    /** @var ?BpNode */
+    protected $parentNode;
+
+    public function setup()
+    {
+        $node = $this->node;
+        $nodeName = $node->getAlias() ?? $node->getName();
+
+        /** @var View $view */
+        $view = $this->getView();
+        $this->addHtml(
+            '<h2>' . $view->escape(
+                sprintf($this->translate('Delete "%s"'), $nodeName)
+            ) . '</h2>'
+        );
+
+        $biLink = $view->qlink(
+            $nodeName,
+            'businessprocess/node/impact',
+            array('name' => $node->getName()),
+            array('data-base-target' => '_next')
+        );
+        $this->addHtml(
+            '<p>' . sprintf(
+                $view->escape(
+                    $this->translate('Unsure? Show business impact of "%s"')
+                ),
+                $biLink
+            ) . '</p>'
+        );
+
+        if ($this->parentNode) {
+            $yesMsg = sprintf(
+                $this->translate('Delete from %s'),
+                $this->parentNode->getAlias()
+            );
+        } else {
+            $yesMsg = sprintf(
+                $this->translate('Delete root node "%s"'),
+                $nodeName
+            );
+        }
+
+        $this->addElement('select', 'confirm', array(
+            'label'        => $this->translate('Are you sure?'),
+            'required'     => true,
+            'description'  => $this->translate(
+                'Do you really want to delete this node?'
+            ),
+            'multiOptions' => $this->optionalEnum(array(
+                'no'  => $this->translate('No'),
+                'yes' => $yesMsg,
+                'all' => sprintf($this->translate('Delete all occurrences of %s'), $nodeName),
+            ))
+        ));
+    }
+
+    /**
+     * @param Node $node
+     * @return $this
+     */
+    public function setNode(Node $node)
+    {
+        $this->node = $node;
+        return $this;
+    }
+
+    /**
+     * @param BpNode|null $node
+     * @return $this
+     */
+    public function setParentNode(BpNode $node = null)
+    {
+        $this->parentNode = $node;
+        return $this;
+    }
+
+    public function onSuccess()
+    {
+        $changes = ProcessChanges::construct($this->bp, $this->session);
+
+        $confirm = $this->getValue('confirm');
+        switch ($confirm) {
+            case 'yes':
+                $changes->deleteNode($this->node, $this->parentNode === null ? null : $this->parentNode->getName());
+                break;
+            case 'all':
+                $changes->deleteNode($this->node);
+                break;
+            case 'no':
+                $this->setSuccessMessage($this->translate('Well, maybe next time'));
+        }
+
+        switch ($confirm) {
+            case 'yes':
+            case 'all':
+                if ($this->successUrl === null) {
+                    $this->successUrl = clone $this->getRequest()->getUrl();
+                }
+
+                $this->successUrl->getParams()->remove(array('action', 'deletenode'));
+        }
+
+        // Trigger session desctruction to make sure it get's stored.
+        // TODO: figure out why this is necessary, might be an unclean shutdown on redirect
+        unset($changes);
+
+        parent::onSuccess();
+    }
+}
diff --git a/application/forms/EditNodeForm.php b/application/forms/EditNodeForm.php
new file mode 100644
index 0000000..bd1592b
--- /dev/null
+++ b/application/forms/EditNodeForm.php
@@ -0,0 +1,315 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Forms;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Modification\ProcessChanges;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\ServiceNode;
+use Icinga\Module\Businessprocess\Web\Form\Element\IplStateOverrides;
+use Icinga\Module\Businessprocess\Web\Form\Validator\HostServiceTermValidator;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+use Icinga\Web\Session\SessionNamespace;
+use ipl\Html\Attributes;
+use ipl\Html\FormattedString;
+use ipl\Html\HtmlElement;
+use ipl\Html\ValidHtml;
+use ipl\I18n\Translation;
+use ipl\Web\Compat\CompatForm;
+use ipl\Web\FormElement\TermInput\ValidatedTerm;
+use ipl\Web\Url;
+
+class EditNodeForm extends CompatForm
+{
+    use Translation;
+
+    /** @var ?BpConfig */
+    protected $bp;
+
+    /** @var ?Node */
+    protected $node;
+
+    /** @var ?BpNode */
+    protected $parent;
+
+    /** @var SessionNamespace */
+    protected $session;
+
+    /**
+     * Set the affected configuration
+     *
+     * @param BpConfig $bp
+     *
+     * @return $this
+     */
+    public function setProcess(BpConfig $bp): self
+    {
+        $this->bp = $bp;
+
+        return $this;
+    }
+
+    /**
+     * Set the affected node
+     *
+     * @param Node $node
+     *
+     * @return $this
+     */
+    public function setNode(Node $node): self
+    {
+        $this->node = $node;
+
+        $this->populate([
+            'node-search' => $node->getName(),
+            'node-label' => $node->getAlias()
+        ]);
+
+        return $this;
+    }
+
+    /**
+     * Set the affected sub-process
+     *
+     * @param ?BpNode $node
+     *
+     * @return $this
+     */
+    public function setParentNode(BpNode $node = null): self
+    {
+        $this->parent = $node;
+
+        if ($this->node !== null) {
+            $stateOverrides = $this->parent->getStateOverrides($this->node->getName());
+            if (! empty($stateOverrides)) {
+                $this->populate([
+                    'overrideStates' => 'y',
+                    'stateOverrides' => $stateOverrides
+                ]);
+            }
+        }
+
+        return $this;
+    }
+
+    /**
+     * Set the user's session
+     *
+     * @param SessionNamespace $session
+     *
+     * @return $this
+     */
+    public function setSession(SessionNamespace $session): self
+    {
+        $this->session = $session;
+
+        return $this;
+    }
+
+    /**
+     * Identify and return the node the user has chosen
+     *
+     * @return Node
+     */
+    protected function identifyChosenNode(): Node
+    {
+        $userInput = $this->getPopulatedValue('node');
+        $nodeName = $this->getPopulatedValue('node-search');
+        $nodeLabel = $this->getPopulatedValue('node-label');
+
+        if ($nodeName && $userInput === $nodeLabel) {
+            // User accepted a suggestion and didn't change it manually
+            $node = $this->bp->getNode($nodeName);
+        } elseif ($userInput && (! $nodeLabel || $userInput !== $nodeLabel)) {
+            // User didn't choose a suggestion or changed it manually
+            $node = $this->bp->getNode(BpConfig::joinNodeName($userInput, 'Hoststatus'));
+        } else {
+            // If the search and user input are both empty, it can only be the initial value
+            $node = $this->node;
+        }
+
+        return $node;
+    }
+
+    protected function assemble()
+    {
+        $this->addHtml(new HtmlElement('h2', null, FormattedString::create(
+            $this->translate('Modify "%s"'),
+            $this->node->getAlias() ?? $this->node->getName()
+        )));
+
+        if ($this->node instanceof ServiceNode) {
+            $this->assembleServiceElements();
+        } else {
+            $this->assembleHostElements();
+        }
+
+        $this->addElement('submit', 'btn_submit', [
+            'label' => $this->translate('Save Changes')
+        ]);
+    }
+
+    protected function assembleServiceElements(): void
+    {
+        if ($this->bp->getBackend() instanceof MonitoringBackend) {
+            $suggestionsPath = 'businessprocess/suggestions/monitoring-service';
+        } else {
+            $suggestionsPath = 'businessprocess/suggestions/icingadb-service';
+        }
+
+        $node = $this->identifyChosenNode();
+
+        $this->addHtml($this->createSearchInput(
+            $this->translate('Service'),
+            $node->getAlias() ?? $node->getName(),
+            $suggestionsPath
+        ));
+
+        $this->addElement('checkbox', 'overrideStates', [
+            'ignore' => true,
+            'class' => 'autosubmit',
+            'label' => $this->translate('Override Service State')
+        ]);
+        if ($this->getPopulatedValue('overrideStates') === 'y') {
+            $this->addElement(new IplStateOverrides('stateOverrides', [
+                'label' => $this->translate('State Overrides'),
+                'options' => [
+                    0 => $this->translate('OK'),
+                    1 => $this->translate('WARNING'),
+                    2 => $this->translate('CRITICAL'),
+                    3 => $this->translate('UNKNOWN'),
+                    99 => $this->translate('PENDING'),
+                ]
+            ]));
+        }
+    }
+
+    protected function assembleHostElements(): void
+    {
+        if ($this->bp->getBackend() instanceof MonitoringBackend) {
+            $suggestionsPath = 'businessprocess/suggestions/monitoring-host';
+        } else {
+            $suggestionsPath = 'businessprocess/suggestions/icingadb-host';
+        }
+
+        $node = $this->identifyChosenNode();
+
+        $this->addHtml($this->createSearchInput(
+            $this->translate('Host'),
+            $node->getAlias() ?? $node->getName(),
+            $suggestionsPath
+        ));
+
+        $this->addElement('checkbox', 'overrideStates', [
+            'ignore' => true,
+            'class' => 'autosubmit',
+            'label' => $this->translate('Override Host State')
+        ]);
+        if ($this->getPopulatedValue('overrideStates') === 'y') {
+            $this->addElement(new IplStateOverrides('stateOverrides', [
+                'label' => $this->translate('State Overrides'),
+                'options' => [
+                    0 => $this->translate('UP'),
+                    1 => $this->translate('DOWN'),
+                    99 => $this->translate('PENDING')
+                ]
+            ]));
+        }
+    }
+
+    protected function createSearchInput(string $label, string $value, string $suggestionsPath): ValidHtml
+    {
+        $userInput = $this->createElement('text', 'node', [
+            'ignore' => true,
+            'required' => true,
+            'autocomplete' => 'off',
+            'label' => $label,
+            'value' => $value,
+            'data-enrichment-type' => 'completion',
+            'data-term-suggestions' => '#node-suggestions',
+            'data-suggest-url' => Url::fromPath($suggestionsPath, [
+                'node' => isset($this->parent) ? $this->parent->getName() : null,
+                'config' => $this->bp->getName(),
+                'showCompact' => true,
+                '_disableLayout' => true
+            ]),
+            'validators' => ['callback' => function ($_, $validator) {
+                $newName = $this->identifyChosenNode()->getName();
+                if ($newName === $this->node->getName()) {
+                    return true;
+                }
+
+                $term = new ValidatedTerm($newName);
+
+                (new HostServiceTermValidator())
+                    ->setParent($this->parent)
+                    ->isValid($term);
+
+                if (! $term->isValid()) {
+                    $validator->addMessage($term->getMessage());
+                    return false;
+                }
+
+                return true;
+            }]
+        ]);
+
+        $fieldset = new HtmlElement('fieldset');
+
+        $searchInput = $this->createElement('hidden', 'node-search', ['ignore' => true]);
+        $this->registerElement($searchInput);
+        $fieldset->addHtml($searchInput);
+
+        $labelInput = $this->createElement('hidden', 'node-label', ['ignore' => true]);
+        $this->registerElement($labelInput);
+        $fieldset->addHtml($labelInput);
+
+        $this->registerElement($userInput);
+        $this->decorate($userInput);
+
+        $fieldset->addHtml(
+            $userInput,
+            new HtmlElement('div', Attributes::create([
+                'id' => 'node-suggestions',
+                'class' => 'search-suggestions'
+            ]))
+        );
+
+        return $fieldset;
+    }
+
+    protected function onSuccess()
+    {
+        $changes = ProcessChanges::construct($this->bp, $this->session);
+
+        $children = $this->parent->getChildNames();
+        $previousPos = array_search($this->node->getName(), $children, true);
+        $node = $this->identifyChosenNode();
+        $nodeName = $node->getName();
+
+        $changes->deleteNode($this->node, $this->parent->getName());
+        $changes->addChildrenToNode([$nodeName], $this->parent);
+
+        $stateOverrides = $this->getValue('stateOverrides');
+        if (! empty($stateOverrides)) {
+            $changes->modifyNode($this->parent, [
+                'stateOverrides' => array_merge($this->parent->getStateOverrides(), [
+                    $nodeName => $stateOverrides
+                ])
+            ]);
+        }
+
+        if ($this->bp->getMetadata()->isManuallyOrdered() && ($newPos = count($children) - 1) > $previousPos) {
+            $changes->moveNode(
+                $node,
+                $newPos,
+                $previousPos,
+                $this->parent->getName(),
+                $this->parent->getName()
+            );
+        }
+
+        unset($changes);
+    }
+}
diff --git a/application/forms/MoveNodeForm.php b/application/forms/MoveNodeForm.php
new file mode 100644
index 0000000..81d15c7
--- /dev/null
+++ b/application/forms/MoveNodeForm.php
@@ -0,0 +1,172 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Forms;
+
+use Icinga\Application\Icinga;
+use Icinga\Application\Web;
+use Icinga\Exception\Http\HttpException;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Exception\ModificationError;
+use Icinga\Module\Businessprocess\Modification\ProcessChanges;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\Web\Form\BpConfigBaseForm;
+use Icinga\Module\Businessprocess\Web\Form\CsrfToken;
+use Icinga\Web\Session;
+use Icinga\Web\Session\SessionNamespace;
+
+class MoveNodeForm extends BpConfigBaseForm
+{
+    /** @var BpConfig */
+    protected $bp;
+
+    /** @var Node */
+    protected $node;
+
+    /** @var BpNode */
+    protected $parentNode;
+
+    /** @var SessionNamespace */
+    protected $session;
+
+    public function __construct($options = null)
+    {
+        parent::__construct($options);
+
+        // Zend's plugin loader reverses the order of added prefix paths thus trying our paths first before trying
+        // Zend paths
+        $this->addPrefixPaths(array(
+            array(
+                'prefix'    => 'Icinga\\Web\\Form\\Element\\',
+                'path'      => Icinga::app()->getLibraryDir('Icinga/Web/Form/Element'),
+                'type'      => static::ELEMENT
+            ),
+            array(
+                'prefix'    => 'Icinga\\Web\\Form\\Decorator\\',
+                'path'      => Icinga::app()->getLibraryDir('Icinga/Web/Form/Decorator'),
+                'type'      => static::DECORATOR
+            )
+        ));
+    }
+
+    public function setup()
+    {
+        $this->addElement(
+            'text',
+            'parent',
+            [
+                'allowEmpty'    => true,
+                'filters'       => ['Null'],
+                'validators'    => [
+                    ['Callback', true, [
+                        'callback'  => function ($name) {
+                            return empty($name) || $this->bp->hasBpNode($name);
+                        },
+                        'messages'  => [
+                            'callbackValue' => $this->translate('No process found with name %value%')
+                        ]
+                    ]]
+                ]
+            ]
+        );
+        $this->addElement(
+            'number',
+            'from',
+            [
+                'required'  => true,
+                'min'       => 0
+            ]
+        );
+        $this->addElement(
+            'number',
+            'to',
+            [
+                'required'  => true,
+                'min'       => 0
+            ]
+        );
+        $this->addElement(
+            'hidden',
+            'csrfToken',
+            [
+                'required'  => true
+            ]
+        );
+
+        $this->setSubmitLabel('movenode');
+    }
+
+    /**
+     * @param Node $node
+     * @return $this
+     */
+    public function setNode(Node $node)
+    {
+        $this->node = $node;
+        return $this;
+    }
+
+    /**
+     * @param BpNode|null $node
+     * @return $this
+     */
+    public function setParentNode(BpNode $node = null)
+    {
+        $this->parentNode = $node;
+        return $this;
+    }
+
+    public function onSuccess()
+    {
+        if (! CsrfToken::isValid($this->getValue('csrfToken'))) {
+            throw new HttpException(403, 'nope');
+        }
+
+        $changes = ProcessChanges::construct($this->bp, $this->session);
+        if (! $this->bp->getMetadata()->isManuallyOrdered()) {
+            $changes->applyManualOrder();
+        }
+
+        try {
+            $changes->moveNode(
+                $this->node,
+                $this->getValue('from'),
+                $this->getValue('to'),
+                $this->getValue('parent'),
+                $this->parentNode !== null ? $this->parentNode->getName() : null
+            );
+        } catch (ModificationError $e) {
+            $this->notifyError($e->getMessage());
+            /** @var Web $app */
+            $app = Icinga::app();
+            $app->getResponse()
+                // Web 2's JS forces a content update for non-200s. Our own JS
+                // can't prevent this, hence we're not making this a 400 :(
+                //->setHttpResponseCode(400)
+                ->setHeader('X-Icinga-Container', 'ignore')
+                ->sendResponse();
+            exit;
+        }
+
+        // Trigger session destruction to make sure it get's stored.
+        unset($changes);
+
+        $this->notifySuccess($this->getSuccessMessage($this->translate('Node order updated')));
+
+        $response = $this->getRequest()->getResponse()
+            ->setHeader('X-Icinga-Container', 'ignore')
+            ->setHeader('X-Icinga-Extra-Updates', implode(';', [
+                $this->getRequest()->getHeader('X-Icinga-Container'),
+                $this->getSuccessUrl()->getAbsoluteUrl()
+            ]));
+
+        Session::getSession()->write();
+        $response->sendResponse();
+        exit;
+    }
+
+    public function hasBeenSent()
+    {
+        return true; // This form has no id
+    }
+}
diff --git a/application/forms/ProcessForm.php b/application/forms/ProcessForm.php
new file mode 100644
index 0000000..126fe9b
--- /dev/null
+++ b/application/forms/ProcessForm.php
@@ -0,0 +1,158 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Forms;
+
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Modification\ProcessChanges;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\Web\Form\BpConfigBaseForm;
+use Icinga\Web\Notification;
+use Icinga\Web\View;
+
+class ProcessForm extends BpConfigBaseForm
+{
+    /** @var BpNode */
+    protected $node;
+
+    public function setup()
+    {
+        if ($this->node !== null) {
+            /** @var View $view */
+            $view = $this->getView();
+
+            $this->addHtml(
+                '<h2>' . $view->escape(
+                    sprintf($this->translate('Modify "%s"'), $this->node->getAlias())
+                ) . '</h2>'
+            );
+        }
+
+        $this->addElement('text', 'name', [
+            'label'         => $this->translate('ID'),
+            'value'         => (string) $this->node,
+            'required'      => true,
+            'readonly'      => $this->node ? true : null,
+            'description'   => $this->translate('This is the unique identifier of this process')
+        ]);
+
+        $this->addElement('text', 'alias', array(
+            'label'        => $this->translate('Display Name'),
+            'description' => $this->translate(
+                'Usually this name will be shown for this node. Equals ID'
+                . ' if not given'
+            ),
+        ));
+
+        $this->addElement('select', 'operator', array(
+            'label'        => $this->translate('Operator'),
+            'required'     => true,
+            'multiOptions' => Node::getOperators()
+        ));
+
+        if ($this->node !== null) {
+            $display = $this->node->getDisplay() ?: 1;
+        } else {
+            $display = 1;
+        }
+        $this->addElement('select', 'display', array(
+            'label'        => $this->translate('Visualization'),
+            'required'     => true,
+            'description'  => $this->translate(
+                'Where to show this process'
+            ),
+            'multiOptions' => array(
+                "$display" => $this->translate('Toplevel Process'),
+                '0' => $this->translate('Subprocess only'),
+            )
+        ));
+
+        $this->addElement('text', 'url', array(
+            'label'        => $this->translate('Info URL'),
+            'description' => $this->translate(
+                'URL pointing to more information about this node'
+            )
+        ));
+
+        if ($node = $this->node) {
+            if ($node->hasAlias()) {
+                $this->getElement('alias')->setValue($node->getAlias());
+            }
+            $this->getElement('operator')->setValue($node->getOperator());
+            $this->getElement('display')->setValue($node->getDisplay());
+            if ($node->hasInfoUrl()) {
+                $this->getElement('url')->setValue($node->getInfoUrl());
+            }
+        }
+    }
+
+    /**
+     * @param BpNode $node
+     * @return $this
+     */
+    public function setNode(BpNode $node)
+    {
+        $this->node = $node;
+        return $this;
+    }
+
+    public function onSuccess()
+    {
+        $changes = ProcessChanges::construct($this->bp, $this->session);
+
+        $modifications = array();
+        $alias    = $this->getValue('alias');
+        $operator = $this->getValue('operator');
+        $display  = $this->getValue('display');
+        $url      = $this->getValue('url');
+        if (empty($url)) {
+            $url = null;
+        }
+        if (empty($alias)) {
+            $alias = null;
+        }
+        // TODO: rename
+
+        if ($node = $this->node) {
+            if ($display !== $node->getDisplay()) {
+                $modifications['display'] = $display;
+            }
+            if ($operator !== $node->getOperator()) {
+                $modifications['operator'] = $operator;
+            }
+            if ($url !== $node->getInfoUrl()) {
+                $modifications['infoUrl'] = $url;
+            }
+            if ($alias !== $node->getAlias()) {
+                $modifications['alias'] = $alias;
+            }
+        } else {
+            $modifications = array(
+                'display'    => $display,
+                'operator'   => $operator,
+                'infoUrl'    => $url,
+                'alias'      => $alias,
+            );
+        }
+
+        if (! empty($modifications)) {
+            if ($this->node === null) {
+                $changes->createNode($this->getValue('name'), $modifications);
+            } else {
+                $changes->modifyNode($this->node, $modifications);
+            }
+
+            Notification::success(
+                sprintf(
+                    'Process %s has been modified',
+                    $this->bp->getName()
+                )
+            );
+        }
+
+        // Trigger session destruction to make sure it get's stored.
+        // TODO: figure out why this is necessary, might be an unclean shutdown on redirect
+        unset($changes);
+
+        parent::onSuccess();
+    }
+}
diff --git a/application/forms/SimulationForm.php b/application/forms/SimulationForm.php
new file mode 100644
index 0000000..04a0f56
--- /dev/null
+++ b/application/forms/SimulationForm.php
@@ -0,0 +1,138 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Forms;
+
+use Icinga\Module\Businessprocess\MonitoredNode;
+use Icinga\Module\Businessprocess\Simulation;
+use Icinga\Module\Businessprocess\Web\Form\BpConfigBaseForm;
+use Icinga\Web\View;
+
+class SimulationForm extends BpConfigBaseForm
+{
+    /** @var MonitoredNode */
+    protected $node;
+
+    /** @var ?MonitoredNode */
+    protected $simulatedNode;
+
+    /** @var Simulation */
+    protected $simulation;
+
+    public function setup()
+    {
+        $states = $this->enumStateNames();
+
+        // TODO: Fetch state from object
+        if ($this->simulatedNode) {
+            $simulatedState = $this->simulatedNode->getState();
+            $states[$simulatedState] = sprintf(
+                '%s (%s)',
+                $this->node->getStateName($simulatedState),
+                $this->translate('Current simulation')
+            );
+            $node = $this->simulatedNode;
+            $hasSimulation = true;
+        } else {
+            $hasSimulation = false;
+            $node = $this->node;
+        }
+
+        /** @var View $view */
+        $view = $this->getView();
+        if ($hasSimulation) {
+            $title = $this->translate('Modify simulation for %s');
+        } else {
+            $title = $this->translate('Add simulation for %s');
+        }
+        $this->addHtml(
+            '<h2>'
+            . $view->escape(sprintf($title, $node->getAlias() ?? $node->getName()))
+            . '</h2>'
+        );
+
+        $this->addElement('select', 'state', array(
+            'label'        => $this->translate('State'),
+            'multiOptions' => $states,
+            'class'        => 'autosubmit',
+            'value'        => $this->simulatedNode ? $node->getState() : null,
+        ));
+
+        $sentState = $this->getSentValue('state');
+        if (in_array($sentState, array('0', '99'))) {
+            return;
+        }
+
+        if ($hasSimulation || ($sentState !== null && ctype_digit($sentState))) {
+            $this->addElement('checkbox', 'acknowledged', array(
+                'label' => $this->translate('Acknowledged'),
+                'value' => $node->isAcknowledged(),
+            ));
+
+            $this->addElement('checkbox', 'in_downtime', array(
+                'label' => $this->translate('In downtime'),
+                'value' => $node->isInDowntime(),
+            ));
+        }
+
+        $this->setSubmitLabel($this->translate('Apply'));
+    }
+
+    public function setNode($node)
+    {
+        $this->node = $node;
+        return $this;
+    }
+
+    public function setSimulation(Simulation $simulation)
+    {
+        $this->simulation = $simulation;
+
+        $name = $this->node->getName();
+        if ($simulation->hasNode($name)) {
+            $this->simulatedNode = clone($this->node);
+            $s = $simulation->getNode($name);
+            $this->simulatedNode->setState($s->state)
+                ->setAck($s->acknowledged)
+                ->setDowntime($s->in_downtime)
+                ->setMissing(false);
+        }
+
+        return $this;
+    }
+
+    public function onSuccess()
+    {
+        $nodeName = $this->node->getName();
+        $state = $this->getValue('state');
+
+        if ($state !== null && ctype_digit($state)) {
+            $this->notifySuccess($this->translate('Simulation has been set'));
+            $this->simulation->set($nodeName, (object) array(
+                'state'        => $this->getValue('state'),
+                'acknowledged' => $this->getValue('acknowledged'),
+                'in_downtime'  => $this->getValue('in_downtime'),
+            ));
+        } else {
+            if ($this->simulation->remove($nodeName)) {
+                $this->notifySuccess($this->translate('Simulation has been removed'));
+            }
+        }
+
+        parent::onSuccess();
+    }
+
+    /**
+     * @return array
+     */
+    protected function enumStateNames()
+    {
+        $states = array(
+            null => sprintf(
+                $this->translate('Use current state (%s)'),
+                $this->translate($this->node->getStateName())
+            )
+        ) + $this->node->enumStateNames();
+
+        return $states;
+    }
+}
diff --git a/application/views/helpers/FormSimpleNote.php b/application/views/helpers/FormSimpleNote.php
new file mode 100644
index 0000000..d8315f4
--- /dev/null
+++ b/application/views/helpers/FormSimpleNote.php
@@ -0,0 +1,15 @@
+<?php
+
+// Avoid complaints about missing namespace and invalid class name
+// @codingStandardsIgnoreStart
+class Zend_View_Helper_FormSimpleNote extends Zend_View_Helper_FormElement
+{
+    // @codingStandardsIgnoreEnd
+
+    public function formSimpleNote($name, $value = null)
+    {
+        $info = $this->_getInfo($name, $value);
+        extract($info); // name, value, attribs, options, listsep, disable
+        return $value;
+    }
+}
diff --git a/application/views/helpers/RenderStateBadges.php b/application/views/helpers/RenderStateBadges.php
new file mode 100644
index 0000000..70633aa
--- /dev/null
+++ b/application/views/helpers/RenderStateBadges.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * @deprecated
+ * @codingStandardsIgnoreStart
+ */
+class Zend_View_Helper_RenderStateBadges extends Zend_View_Helper_Abstract
+{
+    // @codingStandardsIgnoreEnd
+    public function renderStateBadges($summary)
+    {
+        $html = '';
+
+        foreach ($summary as $state => $cnt) {
+            if ($cnt === 0
+                || $state === 'OK'
+                || $state === 'UP'
+            ) {
+                continue;
+            }
+
+            $html .= '<span class="badge badge-' . strtolower($state)
+                   . '" title="' . mt('monitoring', $state) . '">'
+                   . $cnt . '</span>';
+        }
+    
+        if ($html !== '') {
+            $html = '<div class="badges">' . $html . '</div>';
+        }
+
+        return $html;
+    }
+}
diff --git a/application/views/scripts/default.phtml b/application/views/scripts/default.phtml
new file mode 100644
index 0000000..3e2cc59
--- /dev/null
+++ b/application/views/scripts/default.phtml
@@ -0,0 +1,2 @@
+<?= $this->controls->render() ?>
+<?= $this->content->render() ?>
diff --git a/application/views/scripts/host/show.phtml b/application/views/scripts/host/show.phtml
new file mode 100644
index 0000000..413baf2
--- /dev/null
+++ b/application/views/scripts/host/show.phtml
@@ -0,0 +1,13 @@
+<?php
+/** @var \Icinga\Web\View $this */
+/** @var \Icinga\Web\Widget\Tabs $tabs */
+/** @var string $host */
+?>
+<div class="controls">
+    <?= $tabs->showOnlyCloseButton() ?>
+</div>
+<div class="content restricted">
+    <h1><?= $this->translate('Access Denied') ?></h1>
+    <p><?= sprintf($this->translate('You are lacking permission to access host "%s".'), $this->escape($host)) ?></p>
+    <a href="#" class="close-container-control action-link"><?= $this->icon('cancel') ?><?= $this->translate('Hide this message') ?></a>
+</div>
diff --git a/application/views/scripts/process/source.phtml b/application/views/scripts/process/source.phtml
new file mode 100644
index 0000000..d5ba6bb
--- /dev/null
+++ b/application/views/scripts/process/source.phtml
@@ -0,0 +1,25 @@
+<?= $this->controls->render() ?>
+
+<div class="content">
+<?php if ($this->showDiff): ?>
+<div class="diff">
+<?= $this->diff->render() ?>
+</div>
+<?php else: ?>
+<table class="sourcecode">
+<?php
+
+$cnt = 0;
+$lines = preg_split('~\r?\n~', $this->source);
+$len = ceil(log(count($lines), 10));
+$rowhtml = sprintf('<tr><th>%%0%dd: </th><td>%%s<br></td></tr>', $len);
+
+foreach ($lines as $line) {
+    $cnt++;
+    printf($rowhtml, $cnt, $this->escape($line));
+}
+
+?>
+</table>
+<?php endif ?>
+</div>
diff --git a/application/views/scripts/service/show.phtml b/application/views/scripts/service/show.phtml
new file mode 100644
index 0000000..205b3f7
--- /dev/null
+++ b/application/views/scripts/service/show.phtml
@@ -0,0 +1,14 @@
+<?php
+/** @var \Icinga\Web\View $this */
+/** @var \Icinga\Web\Widget\Tabs $tabs */
+/** @var string $host */
+/** @var string $service */
+?>
+<div class="controls">
+    <?= $tabs->showOnlyCloseButton() ?>
+</div>
+<div class="content restricted">
+    <h1><?= $this->escape($this->translate('Access Denied')) ?></h1>
+    <p><?= $this->escape(sprintf($this->translate('You are lacking permission to access service "%s" on host "%s"'), $service, $host)) ?></p>
+    <a href="#" class="close-container-control action-link"><?= $this->icon('cancel') ?><?= $this->translate('Hide this message') ?></a>
+</div>
diff --git a/configuration.php b/configuration.php
new file mode 100644
index 0000000..6ef510e
--- /dev/null
+++ b/configuration.php
@@ -0,0 +1,64 @@
+<?php
+
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+use Icinga\Module\Businessprocess\Web\Navigation\Renderer\ProcessProblemsBadge;
+
+/** @var \Icinga\Application\Modules\Module $this */
+$section = $this->menuSection(N_('Business Processes'), array(
+    'renderer' => 'ProcessesProblemsBadge',
+    'url'      => 'businessprocess',
+    'icon'     => 'sitemap',
+    'priority' => 46
+));
+
+try {
+    $storage = LegacyStorage::getInstance();
+
+    $prio = 0;
+    foreach ($storage->listProcessNames() as $name) {
+        $meta = $storage->loadMetadata($name);
+        if ($meta->get('AddToMenu') === 'no') {
+            continue;
+        }
+        $prio++;
+
+        if ($prio > 5) {
+            $section->add(N_('Show all'), array(
+                'url' => 'businessprocess',
+                'priority' => $prio
+            ));
+
+            break;
+        }
+
+        $section->add($meta->getTitle(), array(
+            'renderer' => (new ProcessProblemsBadge())->setBpConfigName($name),
+            'url' => 'businessprocess/process/show',
+            'urlParameters' => array('config' => $name),
+            'priority' => $prio
+        ));
+    }
+} catch (Exception $e) {
+    // Well... there is not much we could do here
+}
+
+$this->providePermission(
+    'businessprocess/showall',
+    $this->translate('Allow to see all available processes, regardless of configured restrictions')
+);
+$this->providePermission(
+    'businessprocess/create',
+    $this->translate('Allow to create whole new process configuration (files)')
+);
+$this->providePermission(
+    'businessprocess/modify',
+    $this->translate('Allow to modify process definitions, to add and remove nodes')
+);
+$this->provideRestriction(
+    'businessprocess/prefix',
+    $this->translate('Restrict access to configurations with the given prefix')
+);
+
+$this->provideJsFile('vendor/Sortable.js');
+$this->provideJsFile('behavior/sortable.js');
+$this->provideJsFile('vendor/jquery.fn.sortable.js');
diff --git a/doc/01-About.md b/doc/01-About.md
new file mode 100644
index 0000000..44672b4
--- /dev/null
+++ b/doc/01-About.md
@@ -0,0 +1,19 @@
+# Icinga Business Process Modeling
+
+If you want to visualize and monitor hierarchical business processes based on
+objects monitored by Icinga, Icinga Business Process Modeling is the solution.
+
+[![Dashboard](screenshot/16_dashboard/1603_businessprocesses_on_dashboard.png)](16-Add-To-Dashboard.md)
+
+Want to create custom process-based dashboards? Trigger notifications at
+process or sub-process level? Provide a quick top-level view for thousands of
+components on a single screen? That's what this module has been designed for!
+
+You're running a huge cloud, want to get rid of the monitoring noise triggered
+by your auto-scaling platform but still want to have detailed information just
+a couple of clicks away in case you need them? You will love this little module!
+
+## Documentation
+
+* [Installation](02-Installation.md)
+* [Getting Started](03-Getting-Started.md)
diff --git a/doc/02-Installation.md b/doc/02-Installation.md
new file mode 100644
index 0000000..6d479b1
--- /dev/null
+++ b/doc/02-Installation.md
@@ -0,0 +1,24 @@
+<!-- {% if index %} -->
+# Installing Icinga Business Process Modeling
+
+The recommended way to install Icinga Business Process Modeling is to use prebuilt packages for
+all supported platforms from our official release repository.
+Please note that [Icinga Web](https://icinga.com/docs/icinga-web) is required to run Icinga
+Business Process Modeling and if it is not already set up, it is best to do this first.
+
+The following steps will guide you through installing and setting up Icinga Business Process Modeling.
+<!-- {% else %} -->
+<!-- {% if not icingaDocs %} -->
+
+## Installing the Package
+
+If the [repository](https://packages.icinga.com) is not configured yet, please add it first.
+Then use your distribution's package manager to install the `icinga-businessprocess` package
+or install [from source](02-Installation.md.d/From-Source.md).
+<!-- {% endif %} --><!-- {# end if not icingaDocs #} -->
+
+## Configuring Icinga Business Process Modeling
+
+That's it, Icinga Business Process Modeling is now ready to use.
+Please read more on [how to get started](03-Getting-Started.md).
+<!-- {% endif %} --><!-- {# end else if index #} -->
diff --git a/doc/02-Installation.md.d/From-Source.md b/doc/02-Installation.md.d/From-Source.md
new file mode 100644
index 0000000..9e4f6ec
--- /dev/null
+++ b/doc/02-Installation.md.d/From-Source.md
@@ -0,0 +1,15 @@
+# Installing Icinga Business Process Modeling from Source
+
+Please see the Icinga Web documentation on
+[how to install modules](https://icinga.com/docs/icinga-web/latest/doc/08-Modules/#installation) from source.
+Make sure you use `businessprocess` as the module name. The following requirements must also be met.
+
+## Requirements
+
+* PHP (≥7.2)
+* [Icinga Web](https://github.com/Icinga/icingaweb2) (≥2.9)
+* [Icinga DB Web](https://github.com/Icinga/icingadb-web) (≥1.0)
+* [Icinga PHP Library (ipl)](https://github.com/Icinga/icinga-php-library) (≥0.13.0)
+* [Icinga PHP Thirdparty](https://github.com/Icinga/icinga-php-thirdparty) (≥0.12.0)
+
+<!-- {% include "02-Installation.md" %} -->
diff --git a/doc/03-Getting-Started.md b/doc/03-Getting-Started.md
new file mode 100644
index 0000000..baacde0
--- /dev/null
+++ b/doc/03-Getting-Started.md
@@ -0,0 +1,77 @@
+# Getting Started
+
+Once you enable Icinga Business Process Modeling, it will pop up in your menu.
+If you click on it, it will show you a new Dashboard:
+
+![Empty Dashboard](screenshot/03_getting-started/0201_empty-dashboard.png)
+
+## A new Business Process configuration
+
+From here we choose to create a new *Business Process configuration*:
+
+![New Business Process](screenshot/03_getting-started/0202_create-new-configuration.png)
+
+Let's have a look at the single fields:
+
+### Configuration name
+
+![Configuration name](screenshot/03_getting-started/0203_create-new_name.png)
+
+The Business Process definition will be stored with this name. This is going to
+be used when referencing this process in URLs and in Check Commands.
+
+### Title
+
+![Configuration name](screenshot/03_getting-started/0204_create-new_title.png)
+
+You might optionally want to provide an additional title. In that case the title
+is shown in the GUI, while the name is still used as a reference. The title will
+default to the name.
+
+### Description
+
+![Description](screenshot/03_getting-started/0205_create-new_description.png)
+
+Provide a short description explaining within 100-150 character what this
+configuration provides. This will be shown on the Dashboard.
+
+### Backend
+
+![Backend](screenshot/03_getting-started/0206_create-new_backend.png)
+
+**Hint:** *Usually this should not be changed*
+
+Icinga Web 2 currently uses only one Monitoring Backend, but in theory you
+could configure multiple ones. They won't be usable in a meaningful way at the
+time of this writing. Still, you might want to use a different backend as a data
+provider for your Business Process.
+
+### State Type
+
+![State Type](screenshot/03_getting-started/0207_create-new_state-type.png)
+
+You can decide whether `SOFT` or `HARD` states should be the used as a base when
+calculating the state of a Business Process definition.
+
+### Add to menu
+
+Business Process configurations can be linked to the Icinga Web 2 menu. Only the
+first five configurations a user is allowed to see will be shown there:
+
+![Add to menu](screenshot/03_getting-started/0208_create-new_add-to-menu.png)
+
+That's all for now, click `Add` to store your new (still empty) Business Process
+configuration.
+
+## Empty configuration
+
+You are redirected to your newly created Business Process configuration:
+
+![Empty configuration](screenshot/03_getting-started/0209_new-empty-configuration.png)
+
+From here we can now add as many deeply nested Business Processes as we want.
+But let's first have a look at our Dashboard once again:
+
+![New on Dashboard](screenshot/03_getting-started/0210_new-on-dashboard.png)
+
+Now let's move on and [create your first Nodes](04-Create-your-first-process-node.md).
diff --git a/doc/04-Create-your-first-process-node.md b/doc/04-Create-your-first-process-node.md
new file mode 100644
index 0000000..ad3273d
--- /dev/null
+++ b/doc/04-Create-your-first-process-node.md
@@ -0,0 +1,67 @@
+# Create your first Business Process Node
+
+A *Business Process Node* consists of a *name*, *title*, an *operator* and one or
+more child nodes. It can be a Root Node, child node of other Business Process
+Nodes - or both.
+
+![Empty Config](screenshot/04_first-root-node/0301_empty-config.png)
+
+## Configuring our first node
+
+To create our first *Business Process Node* we click the *Add* button. This
+leads to the related configuration form:
+
+![Add new Node](screenshot/04_first-root-node/0302_add-new-node.png)
+
+First setting is the *Node name*, an identifier that must be unique throughout
+all Nodes that are going to be defined. This identifier will be used in every
+link and also in *Check Commands* referring this node from an Icinga *Service
+Check*.
+
+### Set a title
+
+As uniqueness sometimes leads to not-so-beautiful names, you are additionally
+allowed to specify a title. This is what the frontend is going to show:
+
+![Node Title](screenshot/04_first-root-node/0303_node-title.png)
+
+### Choose an operator
+
+Every Business Process requires an *Operator*. This operator defines it's
+behaviour, this specifies how it's very own state is going to be calculated:
+
+![Operator](screenshot/04_first-root-node/0304_operator.png)
+
+### Specify where to display
+
+The form suggests to create a *Toplevel Process*. It does so as we are about
+to create a new *root node*. We could alternatively also create a sub process.
+As we are currently not adding it to another Node, this would lead to an *Unbound
+Node* that could be linked later on.
+
+![Node Display](screenshot/04_first-root-node/0305_display.png)
+
+### Provide an optional Info URL
+
+One might also want to provide a link to additional information related to a
+specific process. This could be instructions with more technical details or
+hints telling what should happen if outage occurs. You might not want to do so
+for every single Node, but it might come in handy for your most important (top
+level?) nodes:
+
+![Node Info Url](screenshot/04_first-root-node/0306_info-url.png)
+
+That's it, your are ready to submit the form.
+
+### First Business Process Node ready
+
+You are now shown your first Business Process Node. A red bar reminds you that
+your pending changes have not been stored yet:
+
+![First Node created](screenshot/04_first-root-node/0307_first-node-created.png)
+
+You could now *Store the Configuration* or move on with adding additional nodes
+to complete your configuration.
+
+**Hint**: the blue arrow makes part of a breadcrumb showing your current position.
+ You might want to learn more about [breadcrumbs](12-Web-Components-Breadcrumb.md).
diff --git a/doc/05-Importing-Processes.md b/doc/05-Importing-Processes.md
new file mode 100644
index 0000000..3095bbf
--- /dev/null
+++ b/doc/05-Importing-Processes.md
@@ -0,0 +1,53 @@
+# Importing Processes
+
+To avoid redundancy and make complex *Business Process Configurations* easier
+to maintain it is possible to import processes from other configurations.
+
+In order to be able to import a process create a root node first. You cannot
+import processes into the root level.
+
+![Subprocesses Only](screenshot/05_importing_nodes/0401_subprocesses_only.png)
+
+## Importing a Process
+
+Once the related configuration form is open, choose `Existing Process` and wait
+for the form to refresh.
+
+![Existing Process](screenshot/05_importing_nodes/0402_choose_existing_process.png)
+
+### Choose Configuration
+
+You can now choose the configuration to import processes from. Or simply hit
+`Next` to just utilize a process from the current configuration.
+
+![Choose Configuration](screenshot/05_importing_nodes/0403_choose_configuration.png)
+
+### Select Processes
+
+Now select the processes you want to import and submit the form.
+
+![Select Processes](screenshot/05_importing_nodes/0404_choose_process.png)
+
+### Import Successful
+
+You are now looking at the result. The process has been imported. Do not forget
+to save your changes!
+
+![Import Successful](screenshot/05_importing_nodes/0405_import_successful.png)
+
+## Navigation with Imported Processes
+
+### Seamless Breadcrumbs
+
+You may have already noticed that the breadcrumbs integrate the hierarchy
+of the imported process. Once you navigate further the actions below the
+breadcrumbs change and don't permit to unlock editing.
+
+![Seamless Breadcrumbs](screenshot/05_importing_nodes/0406_breadcrumb_integration.png)
+
+To change imported processes you need to open them in their original
+configuration first. To do so click on the arrow to the right which is
+displayed in a tile's action urls in the upper left. While in tree view
+these can be found at the very right of an process' row.
+
+![Jump To Original](screenshot/05_importing_nodes/0407_jump_to_original.png)
diff --git a/doc/06-Customize-Node-Order.md b/doc/06-Customize-Node-Order.md
new file mode 100644
index 0000000..880eaa6
--- /dev/null
+++ b/doc/06-Customize-Node-Order.md
@@ -0,0 +1,71 @@
+# Customize Node Order
+
+By default all nodes are ordered alphabetically while viewing them in the UI.
+Though, it is also possible to order nodes entirely manually.
+
+> **Note**
+>
+> Once manual order is applied (no matter where) alphabetical order is
+> disabled for the entire configuration.
+
+## Reorder by Drag'n'Drop
+
+Make sure to unlock the configuration first to be able to reorder nodes.
+
+### Tile View
+
+To move a tile simply grab it with your mouse and drag it to the location you
+want it to appear at.
+
+![Grab Tile](screenshot/06_customize_node_order/0501_tiles_grab_tile.png)
+![Drop Tile](screenshot/06_customize_node_order/0502_tiles_drop_at_location.png)
+
+### Tree View
+
+While in tree view nodes can be moved the same way. You just have a narrower
+area to grab them.
+
+![Grab Row](screenshot/06_customize_node_order/0503_tree_grab_header.png)
+![Drop Row](screenshot/06_customize_node_order/0504_tree_drop_at_location.png)
+
+The tree view also has an advantage the tile view has not. It is possible to
+move nodes within the entire hierarchy. But remember to unfold processes first,
+if you want to move a node into them.
+
+## File Format Extensions
+
+The configuration file format has slightly been changed to accommodate the new
+manual order. Though, previous configurations are perfectly upwards compatible.
+
+### New Header
+
+A new header is used to flag a configuration file as being manually ordered.
+
+```
+# ManualOrder    : yes
+```
+
+Once this is set alphabetical order is disabled and only the next techniques
+define the order of nodes.
+
+### Changed `display` Semantic
+
+Previously there were only two valid values for the `display` directive.
+(0 = Subprocess, 1 = Toplevel Process)
+
+```
+display 0|1;<name>;<title>
+```
+
+This has now been extended so that values greater than zero refer to the order
+of root nodes. (ascending)
+
+```
+display 0|n;<name>;<title>
+```
+
+### Significant Children Order
+
+Previously the order of a node's children in a configuration file was not
+important in any way. Now this is significant and refers to the order in
+which children appear in the UI and how process states are determined.
diff --git a/doc/07-State-Overrides.md b/doc/07-State-Overrides.md
new file mode 100644
index 0000000..dfdbaeb
--- /dev/null
+++ b/doc/07-State-Overrides.md
@@ -0,0 +1,45 @@
+# State Overrides
+
+Business processes utilize their children's states to calculate their own state.
+While you can influence this with [operators](09-Operators.md), it's also possible
+to override individual states. (This applies to host and service nodes.)
+
+## Configuring Overrides
+
+State overrides get configured per node. When adding or editing a node, you can
+define which state should be overridden with another one.
+
+Below `WARNING` is chosen as a replacement for `CRITICAL`.
+
+![Service State Override Configuration](screenshot/07_state_overrides/0701_override_config.png "Service State Override Configuration")
+
+## Identifying Overrides
+
+In tile view overridden states are indicated by an additional state ball in the
+lower left of a tile. This is then the actual state the object is in.
+
+![Overridden Tile State](screenshot/07_state_overrides/0702_overridden_tile.png "Overridden Tile State")
+
+In tree view overridden states are indicated on the very right of a row. There
+the actual state is shown and which one it is replaced with.
+
+![Overridden Tree State](screenshot/07_state_overrides/0703_overridden_tree.png "Overridden Tree State")
+
+## File Format Extensions
+
+The configuration file format has slightly been changed to accommodate state
+overrides. Though, previous configurations are perfectly upwards compatible.
+
+### New Extra Line
+
+For process nodes a new extra line is used to store state overrides.
+
+```
+state_overrides dev_database_servers!mysql;mysql|2-1
+```
+
+The full syntax for this is as follows:
+
+```
+state_overrides <process>!<child>|n-n[!<child>|n-n[,n-n]]
+```
diff --git a/doc/09-Operators.md b/doc/09-Operators.md
new file mode 100644
index 0000000..8d54ba3
--- /dev/null
+++ b/doc/09-Operators.md
@@ -0,0 +1,43 @@
+# Operators
+
+Every Business Process requires an Operator. This operator defines its behaviour and specifies how its very own state is
+going to be calculated.
+
+## AND
+
+The `AND` operator selects the **WORST** state of its child nodes:
+
+![And Operator](screenshot/09_operators/0901_and-operator.png)
+
+## OR
+
+The `OR` operator selects the **BEST** state of its child nodes:
+
+![Or Operator](screenshot/09_operators/0902_or-operator.png)
+
+![Or Operator #2](screenshot/09_operators/0903_or-operator-without-ok.png)
+
+## XOR
+
+The `XOR` operator shows OK if only one of n children is OK at the same time. In all other cases the parent node is CRITICAL.
+Useful for a service on n servers, only one of which may be running. If both were running,
+race conditions and duplication of data could occur.
+
+![Xor Operator](screenshot/09_operators/0906_xor-operator.png)
+
+![Xor Operator #2](screenshot/09_operators/0907_xor-operator-not-ok.png)
+
+## DEGRADED
+
+The `DEGRADED` operator behaves like an `AND`, but if the resulting
+state is **CRITICAL** it transforms it into a **WARNING**.
+Refer to the table below for the case-by-case
+analysis of the statuses.
+
+![Degraded Operator](screenshot/09_operators/0905_deg-operator.jpg)
+
+## MIN n
+
+The `MIN` operator selects the **WORST** state out of the **BEST n** child node states:
+
+![MIN](screenshot/09_operators/0904_min-operator.png)
diff --git a/doc/10-Monitoring.md b/doc/10-Monitoring.md
new file mode 100644
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+++ b/doc/10-Monitoring.md
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+# Monitoring
+
+## Process Check Command
+
+The module provides a CLI command to check a business process.
+
+### Usage
+
+General: `icingacli businessprocess process check <process> [options]`
+
+Options:
+
+```
+  --config <configname>   Name of the config that contains <process>
+  --details               Show problem details as a tree
+  --colors                Show colored output
+  --state-type <type>     Define which state type to look at. Could be either soft
+                          or hard, overrides an eventually configured default
+  --blame                 Show problem details as a tree reduced to the nodes
+                          which have the same state as the business process
+  --root-cause            Used in combination with --blame. Only shows
+                          the path of the nodes which are responsible
+                          for the state of the business process
+  --downtime-is-ok        Treat hosts/services in downtime always as UP/OK.
+  --ack-is-ok             Treat acknowledged hosts/services always as UP/OK.
+```
+
+### Detail View Integration
+
+It is possible to show the monitored process in the service detail view.
+
+For this to work, the name of the checkcommand configured in Icinga 2 must either
+be `icingacli-businessprocess` or the name that can be configured in the module
+configuration:
+
+**/etc/icingaweb2/modules/businessprocess/config.ini**
+```ini
+[DetailviewExtension]
+checkcommand_name=businessprocess-check
+```
+
+A service can define specific custom variables for this. Mandatory ones
+that are not defined, cause the detail view integration to not be active.
+
+| Variable Name                        | Mandatory | Description                                  |
+|--------------------------------------|-----------|----------------------------------------------|
+| icingacli\_businessprocess\_process  | Yes       | The `<process>` being checked                |
+| icingacli\_businessprocess\_config   | No        | Name of the config that contains `<process>` |
+| icingaweb\_businessprocess\_as\_tree | No        | Whether to show `<process>` as tree or tiles |
diff --git a/doc/12-Web-Components-Breadcrumb.md b/doc/12-Web-Components-Breadcrumb.md
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+# Web Components: Breadcrumb
+
+All Business Process renderers show a **breadcrumb** component to always give
+you a quick indication of your current location. 
+
+![Símple Breadcrumb](screenshot/12_web-components_breadcrumb/1201_simple-breadcrumb.png)
+
+The left-most section shows the title of the current *Business Process Configuration*.
+The remaining sections show the path to the current *Business Process Node* currently
+being shown.
+
+Hovering the Breadcrumb with your mouse shows you that all of it sections are
+highlighted, as they are links pointing to either the root level when clicking
+on the *Configuration Node* itself or to the corresponding *Business Process Node*.
+
+All but the last section, showing your current position in the tree. Even if
+not being highlighted, it is still a link an can be clicked in case you need
+so.
+
+In case you're showing some related details in a split-screen view of *Icinga
+Web 2*, a click on any *Breadcrumb* section will switch back to a wide single
+column view to make it obvious that you moved to another context. It is also
+perfectly legal to open any of the available links in a new browser tab or
+window.
+
+## Available actions below the Breadcrumb
+
+### Choose a renderer
+
+The first link allows to toggle the used Renderer. Currently a *Tree* and a
+*Tile* renderer are available. 
+
+### Move to Full Screen Mode
+
+Every view can be shown in *Full Screen Mode*. Full screen means that left and
+upper menu together with some other details are hidden. Your Business Process
+will be able to use all of the available space. Want even more? Then please
+additionally switch your browser to full screen mode. This is usually done by
+pressing the `F11` key.
+
+Once being in full screen mode you'll find an icon on the right side that will
+allow you to switch back to normal view:
+
+![Return from fullscreen](screenshot/12_web-components_breadcrumb/1202_return-from-fullscreen.png)
+
+**Hint:** We know that the web application might request real full screen mode
+on their own. We refused doing so as many people find this being an annoying
+feature.
+
+### Unlock the Configuration
+
+When clicking `Unlock`, additional actions are shown. One of them is immediately
+shown next to the `Unlock` link and reads `Config`. It allows you to reach Configuration
+settings for the your currently loaded *Business Process Configuration*:
+
+![Unlocked config](screenshot/12_web-components_breadcrumb/1204_unlocked_config.png)
+
+But there is more. When unlocked, all nodes provide links allowing you to modify or
+to delete them. Host/Service Nodes now allow you to simulate a specific state.
+
+## Other main actions
+
+### Add content to your Dashboard
+
+When being in *locked* mode, you are allowed to add the currently shown process
+at the given path with the active renderer in the main (or a custom) [Icinga Web 2
+Dashboard](16-Add-To-Dashboard.md):
+
+![Add to Dashboard](screenshot/12_web-components_breadcrumb/1203_add-to-dashboard.png)
diff --git a/doc/13-Web-Components-Tile-Renderer.md b/doc/13-Web-Components-Tile-Renderer.md
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@@ -0,0 +1,22 @@
+# Web Components: Tile Renderer
+
+The default Business Process *Renderer* is the *Tile Renderer*. It always shows
+one level of your tree, enriched with badges giving some hint on lower level
+node problems. This is what it looks like:
+
+![Tile Renderer](screenshot/13_web-components-tile-renderer/1301_tile-view.png)
+
+Please click on *Tree* below the [breadcrumb](12-Web-Components-Breadcrumb.md)
+to switch to the [Tree View](14-Web-Components-Tree-Renderer.md). In the left
+corner of every *Tile* you can find two icons, both of them will show the related
+sub-process. On your mobile phone this usually replaces your current view, please
+use the [breadcrumb](12-Web-Components-Breadcrumb.md) to navigate back to a higher
+level.
+
+On a Notebook or Desktop Computer this usually leady to a split-screen view:
+
+![Split View - Tiles and Tree](screenshot/13_web-components-tile-renderer/1302_tile-and-subtree.png)
+
+This example shows a subtree shown with the [Tree Renderer](14-Web-Components-Tree-Renderer.md),
+it is of course also perfectly legal to drill down using the *Tile Renderer*
+only.
diff --git a/doc/14-Web-Components-Tree-Renderer.md b/doc/14-Web-Components-Tree-Renderer.md
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@@ -0,0 +1,13 @@
+# Web Components: Tree Renderer
+
+The main advantage of the *Tree Renderer* is that it is able to show all nodes
+of Business Process trees at once. This works fine even for huge trees with lots
+of nodes. Please have a look at this screenshot to get an idea of how the tree
+view looks like:
+
+![Tree View](screenshot/14_web-components-tree-renderer/1401_tree-view.png)
+
+Clicking Business Process Nodes collapses or unfolds them, clicking single hosts
+or services show the related monitored object. You can of course always switch
+back to the [Tile Renderer](13-Web-Components-Tile-Renderer.md) with a single
+click at any time.
diff --git a/doc/16-Add-To-Dashboard.md b/doc/16-Add-To-Dashboard.md
new file mode 100644
index 0000000..4b9f8a8
--- /dev/null
+++ b/doc/16-Add-To-Dashboard.md
@@ -0,0 +1,20 @@
+# Show Processes on a Dashboard
+
+When being in *Locked mode*, you can add any Business Process at top or sub level
+to any Icinga Web 2 Dashboard. The related link can be found in the Tab bar:
+
+![Add to Dashboard - Link](screenshot/16_dashboard/1601_add-to-dashboard-link.png)
+
+This leads to the standard Icinga Web 2 *Add Dashlet to Dashboard* form. Feel
+free to add your Business Process View to any existing Dashboard. You might also
+want to create a dedicated Dashboard as shown in this example:
+
+![Add to Dashboard - Form](screenshot/16_dashboard/1602_add_to_dashboard-form.png)
+
+
+## Want more?
+
+Head on and add multiple Business Processes to your Dashboard to show all of
+them at once:
+
+![Sample Dashboard](screenshot/16_dashboard/1603_businessprocesses_on_dashboard.png)
diff --git a/doc/21-Store-Config.md b/doc/21-Store-Config.md
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+++ b/doc/21-Store-Config.md
@@ -0,0 +1,23 @@
+# Store your Configuration
+
+Changes to your *Business Process Configuration* are added to a stack and will
+not be stored immediately. In case there are pending unstored changes, this will
+be shown on every screen:
+
+![Pending Changes](screenshot/21_store-config/2101_Pending-Changes.png)
+
+A click on *Dismiss* immediately throws away all unstored changes. A click on
+*Store* brings you to the configuration form. You have seen this before, once
+you created your [very first configuration](03-Getting-Started.md):
+
+![Store Config](screenshot/21_store-config/2102_Store-Config.png)
+
+## Config Diff
+
+If unsure what changes you're going to store, you can still check the *Config Diff*
+before finally storing to disk:
+
+![Show Diff](screenshot/21_store-config/2103_Show-Diff.png)
+
+You can also download your existing configuration to safe it elsewhere or to
+apply manual modifications with our favourite plaintext editor.
diff --git a/doc/22-Upload-Config.md b/doc/22-Upload-Config.md
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+++ b/doc/22-Upload-Config.md
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+# Upload a Configuration File
+
+You can upload a formerly downloaded or even a manually created file directly
+through the web frontend. Given sufficient permissions, the Dashboard provides
+a related link:
+
+![From Dashboard to Upload](screenshot/22_upload-config/2201_go-to-upload.png)
+
+## Chose a file
+
+This can be any file:
+
+![Choose a File](screenshot/22_upload-config/2202_choose-file.png)
+
+It should be valid of course, but don't worry - Icinga Business Process Modeling
+protects you from syntax errors:
+
+![Syntax Error](screenshot/22_upload-config/2203_syntax-error.png)
+
+Just for fun you could try to upload an image or whatever you want - it will not
+break. It will also protect you from accidentally overwriting existing files:
+
+![Duplicate Name](screenshot/22_upload-config/2204_duplicate-name.png)
+
+So in case you need to replace an existing process, please delete it before
+uploading a new one.
diff --git a/doc/31-Permissions.md b/doc/31-Permissions.md
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+# Permission System
+
+The permission system of the module is based on permissions and restrictions.
+
+## Permissions
+
+The module has five levels of permissions:
+
+* Granting general module access allows a user to view business processes. (`module/businessprocess`)
+* Create permissions allow to create new business processes. (`businessprocess/create`)
+* Modify permissions allow to modify already existing ones. (`businessprocess/modify`)
+* Permission to view all business processes regardless restrictions. (`businessprocess/showall`)
+* Full permissions. (`businessprocess/*`)
+
+## Restrictions
+
+There are two ways to configure restrictions: prefix-based and access controls
+
+### Prefix-based
+
+This option allows to limit access of a role to only business processes with a specific prefix. For this the ID (Configuration name) of a business process has to start with a prefix and it has to be set as restriction on the role. (`businessprocess/prefix`)
+
+### Access controls
+
+This option allows for more fine granular permissions based on user (`AllowedUsers`), group (`AllowedGroups`) and role (`AllowedRoles`). These attributes take a comma-separated list, get added to the header of the business process configuration file and limit access to the owner and the mentioned ones.
diff --git a/doc/81-History.md b/doc/81-History.md
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+++ b/doc/81-History.md
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+# Project History
+
+Icinga Business Process Modeling is based on the ideas of the Nagios(tm) [Business
+Process AddOn](http://bp-addon.monitoringexchange.org/) written by Bernd
+Strößenreuther. We always loved its simplicity, and while it looks pretty
+oldschool right now there are still many shops happily using it in production.
+
+![BpAddOn Overview](screenshot/81_history/8101_bpaddon-overview.png)
+
+## Compatibility
+
+We fully support the BPaddon configuration language and will continue to do so.
+It's also perfectly valid to run both products in parallel based on the very same
+config files. New features are (mostly) added in a compatible way.
+
+Configuration titles and descriptions, properties related to state types or
+permissions are examples for new features that didn't formerly exist. They are
+stored as commented metadata in the file header and therefore invisible to the
+old AddOn.
+
+The only way to break compatibility is to use newly introduced operators like
+`NOT`. Once you do so, the old AddOn will no longer be able to parse your
+configuration.
+
+![BpAddOn Details](screenshot/81_history/8102_bpaddon-detail.png)
+
+Lot's of changes went on and are still going on under the hood. We have more
+features and new language constructs. We separated the config reader from the
+state fetcher in our code base. This will allow us to eventually support config
+backends like SQL databases or the Icinga 2 DSL.
+
+This would make it easier to distribute configuration in large environments.
+
+## Improvements
+
+Major focus has been put on execution speed. So while the Web integration shows
+much more details at once and is able to display huge unfolded trees, it should
+still render and refresh faster. Same goes for the Check Plugin.
+
+Behaviour for all operators is now strictly specified and Unit-tested. You still
+can manually edit your configuration files. But much better, you also delegate
+this to your co-workers, as Business Process definitions can now be built directly
+in the GUI.
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index 0000000..7687713
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+++ b/doc/screenshot/06_customize_node_order/0503_tree_grab_header.png
diff --git a/doc/screenshot/06_customize_node_order/0504_tree_drop_at_location.png b/doc/screenshot/06_customize_node_order/0504_tree_drop_at_location.png
new file mode 100644
index 0000000..828aebe
--- /dev/null
+++ b/doc/screenshot/06_customize_node_order/0504_tree_drop_at_location.png
diff --git a/doc/screenshot/07_state_overrides/0701_override_config.png b/doc/screenshot/07_state_overrides/0701_override_config.png
new file mode 100644
index 0000000..49ca2ad
--- /dev/null
+++ b/doc/screenshot/07_state_overrides/0701_override_config.png
diff --git a/doc/screenshot/07_state_overrides/0702_overridden_tile.png b/doc/screenshot/07_state_overrides/0702_overridden_tile.png
new file mode 100644
index 0000000..db2012e
--- /dev/null
+++ b/doc/screenshot/07_state_overrides/0702_overridden_tile.png
diff --git a/doc/screenshot/07_state_overrides/0703_overridden_tree.png b/doc/screenshot/07_state_overrides/0703_overridden_tree.png
new file mode 100644
index 0000000..ccf4fde
--- /dev/null
+++ b/doc/screenshot/07_state_overrides/0703_overridden_tree.png
diff --git a/doc/screenshot/09_operators/0901_and-operator.png b/doc/screenshot/09_operators/0901_and-operator.png
new file mode 100644
index 0000000..c6e7775
--- /dev/null
+++ b/doc/screenshot/09_operators/0901_and-operator.png
diff --git a/doc/screenshot/09_operators/0902_or-operator.png b/doc/screenshot/09_operators/0902_or-operator.png
new file mode 100644
index 0000000..fd05ec3
--- /dev/null
+++ b/doc/screenshot/09_operators/0902_or-operator.png
diff --git a/doc/screenshot/09_operators/0903_or-operator-without-ok.png b/doc/screenshot/09_operators/0903_or-operator-without-ok.png
new file mode 100644
index 0000000..e9fcd4e
--- /dev/null
+++ b/doc/screenshot/09_operators/0903_or-operator-without-ok.png
diff --git a/doc/screenshot/09_operators/0904_min-operator.png b/doc/screenshot/09_operators/0904_min-operator.png
new file mode 100644
index 0000000..fd05ec3
--- /dev/null
+++ b/doc/screenshot/09_operators/0904_min-operator.png
diff --git a/doc/screenshot/09_operators/0905_deg-operator.jpg b/doc/screenshot/09_operators/0905_deg-operator.jpg
new file mode 100644
index 0000000..9dc05a3
--- /dev/null
+++ b/doc/screenshot/09_operators/0905_deg-operator.jpg
diff --git a/doc/screenshot/09_operators/0906_xor-operator.png b/doc/screenshot/09_operators/0906_xor-operator.png
new file mode 100644
index 0000000..fd05ec3
--- /dev/null
+++ b/doc/screenshot/09_operators/0906_xor-operator.png
diff --git a/doc/screenshot/09_operators/0907_xor-operator-not-ok.png b/doc/screenshot/09_operators/0907_xor-operator-not-ok.png
new file mode 100644
index 0000000..8ec41b3
--- /dev/null
+++ b/doc/screenshot/09_operators/0907_xor-operator-not-ok.png
diff --git a/doc/screenshot/12_web-components_breadcrumb/1201_simple-breadcrumb.png b/doc/screenshot/12_web-components_breadcrumb/1201_simple-breadcrumb.png
new file mode 100644
index 0000000..a4f9a4d
--- /dev/null
+++ b/doc/screenshot/12_web-components_breadcrumb/1201_simple-breadcrumb.png
diff --git a/doc/screenshot/12_web-components_breadcrumb/1202_return-from-fullscreen.png b/doc/screenshot/12_web-components_breadcrumb/1202_return-from-fullscreen.png
new file mode 100644
index 0000000..fe3406b
--- /dev/null
+++ b/doc/screenshot/12_web-components_breadcrumb/1202_return-from-fullscreen.png
diff --git a/doc/screenshot/12_web-components_breadcrumb/1203_add-to-dashboard.png b/doc/screenshot/12_web-components_breadcrumb/1203_add-to-dashboard.png
new file mode 100644
index 0000000..b1daec5
--- /dev/null
+++ b/doc/screenshot/12_web-components_breadcrumb/1203_add-to-dashboard.png
diff --git a/doc/screenshot/12_web-components_breadcrumb/1204_unlocked_config.png b/doc/screenshot/12_web-components_breadcrumb/1204_unlocked_config.png
new file mode 100644
index 0000000..0ba84a9
--- /dev/null
+++ b/doc/screenshot/12_web-components_breadcrumb/1204_unlocked_config.png
diff --git a/doc/screenshot/13_web-components-tile-renderer/1301_tile-view.png b/doc/screenshot/13_web-components-tile-renderer/1301_tile-view.png
new file mode 100644
index 0000000..80a142f
--- /dev/null
+++ b/doc/screenshot/13_web-components-tile-renderer/1301_tile-view.png
diff --git a/doc/screenshot/13_web-components-tile-renderer/1302_tile-and-subtree.png b/doc/screenshot/13_web-components-tile-renderer/1302_tile-and-subtree.png
new file mode 100644
index 0000000..a03209d
--- /dev/null
+++ b/doc/screenshot/13_web-components-tile-renderer/1302_tile-and-subtree.png
diff --git a/doc/screenshot/14_web-components-tree-renderer/1401_tree-view.png b/doc/screenshot/14_web-components-tree-renderer/1401_tree-view.png
new file mode 100644
index 0000000..7bacb00
--- /dev/null
+++ b/doc/screenshot/14_web-components-tree-renderer/1401_tree-view.png
diff --git a/doc/screenshot/16_dashboard/1601_add-to-dashboard-link.png b/doc/screenshot/16_dashboard/1601_add-to-dashboard-link.png
new file mode 100644
index 0000000..b1daec5
--- /dev/null
+++ b/doc/screenshot/16_dashboard/1601_add-to-dashboard-link.png
diff --git a/doc/screenshot/16_dashboard/1602_add_to_dashboard-form.png b/doc/screenshot/16_dashboard/1602_add_to_dashboard-form.png
new file mode 100644
index 0000000..ab2d255
--- /dev/null
+++ b/doc/screenshot/16_dashboard/1602_add_to_dashboard-form.png
diff --git a/doc/screenshot/16_dashboard/1603_businessprocesses_on_dashboard.png b/doc/screenshot/16_dashboard/1603_businessprocesses_on_dashboard.png
new file mode 100644
index 0000000..116bf04
--- /dev/null
+++ b/doc/screenshot/16_dashboard/1603_businessprocesses_on_dashboard.png
diff --git a/doc/screenshot/21_store-config/2101_Pending-Changes.png b/doc/screenshot/21_store-config/2101_Pending-Changes.png
new file mode 100644
index 0000000..7e33981
--- /dev/null
+++ b/doc/screenshot/21_store-config/2101_Pending-Changes.png
diff --git a/doc/screenshot/21_store-config/2102_Store-Config.png b/doc/screenshot/21_store-config/2102_Store-Config.png
new file mode 100644
index 0000000..d985786
--- /dev/null
+++ b/doc/screenshot/21_store-config/2102_Store-Config.png
diff --git a/doc/screenshot/21_store-config/2103_Show-Diff.png b/doc/screenshot/21_store-config/2103_Show-Diff.png
new file mode 100644
index 0000000..7025f6c
--- /dev/null
+++ b/doc/screenshot/21_store-config/2103_Show-Diff.png
diff --git a/doc/screenshot/22_upload-config/2201_go-to-upload.png b/doc/screenshot/22_upload-config/2201_go-to-upload.png
new file mode 100644
index 0000000..1dda67c
--- /dev/null
+++ b/doc/screenshot/22_upload-config/2201_go-to-upload.png
diff --git a/doc/screenshot/22_upload-config/2202_choose-file.png b/doc/screenshot/22_upload-config/2202_choose-file.png
new file mode 100644
index 0000000..a8717dd
--- /dev/null
+++ b/doc/screenshot/22_upload-config/2202_choose-file.png
diff --git a/doc/screenshot/22_upload-config/2203_syntax-error.png b/doc/screenshot/22_upload-config/2203_syntax-error.png
new file mode 100644
index 0000000..ca81da0
--- /dev/null
+++ b/doc/screenshot/22_upload-config/2203_syntax-error.png
diff --git a/doc/screenshot/22_upload-config/2204_duplicate-name.png b/doc/screenshot/22_upload-config/2204_duplicate-name.png
new file mode 100644
index 0000000..5f9c809
--- /dev/null
+++ b/doc/screenshot/22_upload-config/2204_duplicate-name.png
diff --git a/doc/screenshot/81_history/8101_bpaddon-overview.png b/doc/screenshot/81_history/8101_bpaddon-overview.png
new file mode 100644
index 0000000..6ae8cb0
--- /dev/null
+++ b/doc/screenshot/81_history/8101_bpaddon-overview.png
diff --git a/doc/screenshot/81_history/8102_bpaddon-detail.png b/doc/screenshot/81_history/8102_bpaddon-detail.png
new file mode 100644
index 0000000..7b38a1e
--- /dev/null
+++ b/doc/screenshot/81_history/8102_bpaddon-detail.png
diff --git a/library/Businessprocess/BpConfig.php b/library/Businessprocess/BpConfig.php
new file mode 100644
index 0000000..c9e70fd
--- /dev/null
+++ b/library/Businessprocess/BpConfig.php
@@ -0,0 +1,1117 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Exception;
+use Icinga\Application\Modules\Module;
+use Icinga\Exception\IcingaException;
+use Icinga\Exception\NotFoundError;
+use Icinga\Module\Businessprocess\Exception\NestingError;
+use Icinga\Module\Businessprocess\Modification\ProcessChanges;
+use Icinga\Module\Businessprocess\ProvidedHook\Icingadb\IcingadbSupport;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+use ipl\Sql\Connection as IcingaDbConnection;
+
+class BpConfig
+{
+    const SOFT_STATE = 0;
+
+    const HARD_STATE = 1;
+
+    /**
+     * Name of the configured monitoring backend
+     *
+     * @var string
+     */
+    protected $backendName;
+
+    /**
+     * Backend to retrieve states from
+     *
+     * @var MonitoringBackend|IcingaDbConnection
+     */
+    protected $backend;
+
+    /**
+     * @var LegacyStorage
+     */
+    protected $storage;
+
+    /** @var  Metadata */
+    protected $metadata;
+
+    /**
+     * Business process name
+     *
+     * @var string
+     */
+    protected $name;
+
+    /**
+     * Business process title
+     *
+     * @var string
+     */
+    protected $title;
+
+    /**
+     * State type, soft or hard
+     *
+     * @var int
+     */
+    protected $state_type;
+
+    /**
+     * Warnings, usually filled at process build time
+     *
+     * @var array
+     */
+    protected $warnings = array();
+
+    /**
+     * Errors, usually filled at process build time
+     *
+     * @var array
+     */
+    protected $errors = array();
+
+    /**
+     * All used node objects
+     *
+     * @var array
+     */
+    protected $nodes = array();
+
+    /**
+     * Root node objects
+     *
+     * @var array
+     */
+    protected $root_nodes = array();
+
+    /**
+     * Imported nodes
+     *
+     * @var ImportedNode[]
+     */
+    protected $importedNodes = [];
+
+    /**
+     * Imported configs
+     *
+     * @var BpConfig[]
+     */
+    protected $importedConfigs = [];
+
+    /**
+     * All host names { 'hostA' => true, ... }
+     *
+     * @var array
+     */
+    protected $hosts = array();
+
+    /** @var bool Whether catchable errors should be thrown nonetheless */
+    protected $throwErrors = false;
+
+    protected $loopDetection = array();
+
+    /**
+     * Applied state simulation
+     *
+     * @var Simulation
+     */
+    protected $simulation;
+
+    protected $changeCount = 0;
+
+    protected $simulationCount = 0;
+
+    /** @var ProcessChanges */
+    protected $appliedChanges;
+
+    /** @var bool Whether the config is faulty */
+    protected $isFaulty = false;
+
+    public function __construct()
+    {
+    }
+
+    /**
+     * Retrieve metadata for this configuration
+     *
+     * @return Metadata
+     */
+    public function getMetadata()
+    {
+        if ($this->metadata === null) {
+            $this->metadata = new Metadata($this->name);
+        }
+
+        return $this->metadata;
+    }
+
+    /**
+     * Set metadata
+     *
+     * @param Metadata $metadata
+     *
+     * @return $this
+     */
+    public function setMetadata(Metadata $metadata)
+    {
+        $this->metadata = $metadata;
+        return $this;
+    }
+
+    /**
+     * Apply pending process changes
+     *
+     * @param ProcessChanges $changes
+     *
+     * @return $this
+     */
+    public function applyChanges(ProcessChanges $changes)
+    {
+        $cnt = 0;
+        foreach ($changes->getChanges() as $change) {
+            $cnt++;
+            $change->applyTo($this);
+        }
+        $this->changeCount = $cnt;
+
+        $this->appliedChanges = $changes;
+
+        return $this;
+    }
+
+    /**
+     * Apply a state simulation
+     *
+     * @param Simulation $simulation
+     *
+     * @return $this
+     */
+    public function applySimulation(Simulation $simulation)
+    {
+        $cnt = 0;
+
+        foreach ($simulation->simulations() as $node => $s) {
+            if (! $this->hasNode($node)) {
+                continue;
+            }
+            $cnt++;
+            $this->getNode($node)
+                 ->setState($s->state)
+                 ->setAck($s->acknowledged)
+                 ->setDowntime($s->in_downtime)
+                 ->setMissing(false);
+        }
+
+        $this->simulationCount = $cnt;
+
+        return $this;
+    }
+
+    /**
+     * Number of applied changes
+     *
+     * @return int
+     */
+    public function countChanges()
+    {
+        return $this->changeCount;
+    }
+
+    /**
+     * Whether changes have been applied to this configuration
+     *
+     * @return bool
+     */
+    public function hasChanges()
+    {
+        return $this->countChanges() > 0;
+    }
+
+    /**
+     * @param $name
+     *
+     * @return $this
+     */
+    public function setName($name)
+    {
+        $this->name = $name;
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * @return string
+     */
+    public function getHtmlId()
+    {
+        return 'businessprocess-' . preg_replace('/[\r\n\t\s]/', '_', $this->getName());
+    }
+
+    public function setTitle($title)
+    {
+        $this->title = $title;
+        return $this;
+    }
+
+    public function getTitle()
+    {
+        return $this->getMetadata()->getTitle();
+    }
+
+    public function hasTitle()
+    {
+        return $this->getMetadata()->has('Title');
+    }
+
+    public function getBackendName()
+    {
+        return $this->getMetadata()->get('Backend');
+    }
+
+    public function hasBackendName()
+    {
+        return $this->getMetadata()->has('Backend');
+    }
+
+    public function setBackend($backend)
+    {
+        $this->backend = $backend;
+        return $this;
+    }
+
+    public function getBackend()
+    {
+        if ($this->backend === null) {
+            if (Module::exists('icingadb')
+                && (! $this->hasBackendName() && IcingadbSupport::useIcingaDbAsBackend())) {
+                $this->backend = IcingaDbObject::fetchDb();
+            } else {
+                $this->backend = MonitoringBackend::instance(
+                    $this->getBackendName()
+                );
+            }
+        }
+
+        return $this->backend;
+    }
+
+    public function isReferenced()
+    {
+        foreach ($this->storage()->listProcessNames() as $bpName) {
+            if ($bpName !== $this->getName()) {
+                $bp = $this->storage()->loadProcess($bpName);
+                foreach ($bp->getImportedNodes() as $importedNode) {
+                    if ($importedNode->getConfigName() === $this->getName()) {
+                        return true;
+                    }
+                }
+            }
+        }
+
+        return false;
+    }
+
+    public function hasBackend()
+    {
+        return $this->backend !== null;
+    }
+
+    public function hasBeenChanged()
+    {
+        return false;
+    }
+
+    public function hasSimulations()
+    {
+        return $this->countSimulations() > 0;
+    }
+
+    public function countSimulations()
+    {
+        return $this->simulationCount;
+    }
+
+    public function clearAppliedChanges()
+    {
+        if ($this->appliedChanges !== null) {
+            $this->appliedChanges->clear();
+        }
+        return $this;
+    }
+
+    public function getStateType()
+    {
+        if ($this->state_type === null) {
+            if ($this->getMetadata()->has('Statetype')) {
+                switch ($this->getMetadata()->get('Statetype')) {
+                    case 'hard':
+                        $this->state_type = self::HARD_STATE;
+                        break;
+                    case 'soft':
+                        $this->state_type = self::SOFT_STATE;
+                        break;
+                }
+            } else {
+                $this->state_type = self::HARD_STATE;
+            }
+        }
+
+        return $this->state_type;
+    }
+
+    public function useSoftStates()
+    {
+        $this->state_type = self::SOFT_STATE;
+        return $this;
+    }
+
+    public function useHardStates()
+    {
+        $this->state_type = self::HARD_STATE;
+        return $this;
+    }
+
+    public function usesSoftStates()
+    {
+        return $this->getStateType() === self::SOFT_STATE;
+    }
+
+    public function usesHardStates()
+    {
+        return $this->getStateType() === self::HARD_STATE;
+    }
+
+    public function addRootNode($name)
+    {
+        $this->root_nodes[$name] = $this->getNode($name);
+        return $this;
+    }
+
+    public function removeRootNode($name)
+    {
+        if ($this->isRootNode($name)) {
+            unset($this->root_nodes[$name]);
+        }
+
+        return $this;
+    }
+
+    public function isRootNode($name)
+    {
+        return array_key_exists($name, $this->root_nodes);
+    }
+
+    /**
+     * @return BpNode[]
+     */
+    public function getChildren()
+    {
+        return $this->getRootNodes();
+    }
+
+    /**
+     * @return int
+     */
+    public function countChildren()
+    {
+        return count($this->root_nodes);
+    }
+
+    /**
+     * @return BpNode[]
+     */
+    public function getRootNodes()
+    {
+        return $this->root_nodes;
+    }
+
+    public function listRootNodes()
+    {
+        return array_keys($this->root_nodes);
+    }
+
+    public function getNodes()
+    {
+        return $this->nodes;
+    }
+
+    public function hasNode($name)
+    {
+        if (array_key_exists($name, $this->nodes)) {
+            return true;
+        } elseif ($name[0] === '@') {
+            list($configName, $nodeName) = preg_split('~:\s*~', substr($name, 1), 2);
+            return $this->getImportedConfig($configName)->hasNode($nodeName);
+        }
+
+        return false;
+    }
+
+    public function hasRootNode($name)
+    {
+        return array_key_exists($name, $this->root_nodes);
+    }
+
+    public function createService($host, $service)
+    {
+        $node = new ServiceNode(
+            (object) array(
+                'hostname' => $host,
+                'service'  => $service
+            )
+        );
+        $node->setBpConfig($this);
+        $this->nodes[$node->getName()] = $node;
+        $this->hosts[$host] = true;
+        return $node;
+    }
+
+    public function createHost($host)
+    {
+        $node = new HostNode((object) array('hostname' => $host));
+        $node->setBpConfig($this);
+        $this->nodes[$node->getName()] = $node;
+        $this->hosts[$host] = true;
+        return $node;
+    }
+
+    public function calculateAllStates()
+    {
+        foreach ($this->getRootNodes() as $node) {
+            $node->getState();
+        }
+
+        return $this;
+    }
+
+    public function clearAllStates()
+    {
+        foreach ($this->getBpNodes() as $node) {
+            $node->clearState();
+        }
+
+        return $this;
+    }
+
+    public function listInvolvedHostNames(&$usedConfigs = null)
+    {
+        $hosts = $this->hosts;
+        if (! empty($this->importedNodes)) {
+            $usedConfigs[$this->getName()] = true;
+            foreach ($this->importedNodes as $node) {
+                if (isset($usedConfigs[$node->getConfigName()])) {
+                    continue;
+                }
+
+                $hosts += array_flip($node->getBpConfig()->listInvolvedHostNames($usedConfigs));
+            }
+        }
+
+        return array_keys($hosts);
+    }
+
+    /**
+     * Create and attach a new process (BpNode)
+     *
+     * @param string $name     Process name
+     * @param string $operator Operator (defaults to &)
+     *
+     * @return BpNode
+     */
+    public function createBp($name, $operator = '&')
+    {
+        $node = new BpNode((object) array(
+            'name'        => $name,
+            'operator'    => $operator,
+            'child_names' => array(),
+        ));
+        $node->setBpConfig($this);
+
+        $this->addNode($name, $node);
+        return $node;
+    }
+
+    public function createMissingBp($name)
+    {
+        return $this->createBp($name)->setMissing();
+    }
+
+    public function getMissingChildren()
+    {
+        $missing = array();
+        foreach ($this->getRootNodes() as $root) {
+            $missing += $root->getMissingChildren();
+        }
+
+        return $missing;
+    }
+
+    public function createImportedNode($config, $name = null)
+    {
+        $params = (object) array('configName' => $config);
+        if ($name !== null) {
+            $params->node = $name;
+        }
+
+        $node = new ImportedNode($this, $params);
+        $this->importedNodes[$node->getName()] = $node;
+        $this->nodes[$node->getName()] = $node;
+        return $node;
+    }
+
+    public function getImportedNodes()
+    {
+        return $this->importedNodes;
+    }
+
+    public function getImportedConfig($name)
+    {
+        if (! isset($this->importedConfigs[$name])) {
+            try {
+                $import = $this->storage()->loadProcess($name);
+            } catch (Exception $e) {
+                $import = (new static())
+                    ->setName($name)
+                    ->setFaulty();
+            }
+
+            if ($this->usesSoftStates()) {
+                $import->useSoftStates();
+            } else {
+                $import->useHardStates();
+            }
+
+            $this->importedConfigs[$name] = $import;
+        }
+
+        return $this->importedConfigs[$name];
+    }
+
+    public function listInvolvedConfigs(&$configs = null)
+    {
+        if ($configs === null) {
+            $configs[$this->getName()] = $this;
+        }
+
+        foreach ($this->importedNodes as $node) {
+            if (! isset($configs[$node->getConfigName()])) {
+                $config = $node->getBpConfig();
+                $configs[$node->getConfigName()] = $config;
+                $config->listInvolvedConfigs($configs);
+            }
+        }
+
+        return $configs;
+    }
+
+    /**
+     * @return LegacyStorage
+     */
+    protected function storage()
+    {
+        if ($this->storage === null) {
+            $this->storage = LegacyStorage::getInstance();
+        }
+
+        return $this->storage;
+    }
+
+    /**
+     * @param   string  $name
+     * @return  MonitoredNode|BpNode
+     * @throws  Exception
+     */
+    public function getNode($name)
+    {
+        if ($name === '__unbound__') {
+            return $this->getUnboundBaseNode();
+        }
+
+        if (array_key_exists($name, $this->nodes)) {
+            return $this->nodes[$name];
+        }
+
+        if ($name[0] === '@') {
+            list($configName, $nodeName) = preg_split('~:\s*~', substr($name, 1), 2);
+            return $this->getImportedConfig($configName)->getNode($nodeName);
+        }
+
+        // Fallback: if it is a service, create an empty one:
+        $this->warn(sprintf('The node "%s" doesn\'t exist', $name));
+
+        [$name, $suffix] = self::splitNodeName($name);
+        if ($suffix !== null) {
+            if ($suffix === 'Hoststatus') {
+                return $this->createHost($name);
+            } else {
+                return $this->createService($name, $suffix);
+            }
+        }
+
+        throw new Exception(
+            sprintf('The node "%s" doesn\'t exist', $name)
+        );
+    }
+
+    /**
+     * @return BpNode
+     */
+    public function getUnboundBaseNode()
+    {
+        // Hint: state is useless here, but triggers parent/child "calculation"
+        //       This is an ugly workaround and should be made obsolete
+        $this->calculateAllStates();
+
+        $names = array_keys($this->getUnboundNodes());
+        $bp = new BpNode((object) array(
+            'name' => '__unbound__',
+            'operator' => '&',
+            'child_names' => $names
+        ));
+        $bp->setBpConfig($this);
+        $bp->setAlias($this->translate('Unbound nodes'));
+        return $bp;
+    }
+
+    /**
+     * @param $name
+     * @return BpNode
+     *
+     * @throws NotFoundError
+     */
+    public function getBpNode($name)
+    {
+        if ($this->hasBpNode($name)) {
+            return $this->nodes[$name];
+        }
+
+        $msg = $this->isFaulty()
+            ? sprintf(
+                t('Trying to import node "%s" from faulty config file "%s.conf"'),
+                self::unescapeName($name),
+                $this->getName()
+            )
+            : sprintf(t('Trying to access a missing business process node "%s"'), $name);
+
+        throw new NotFoundError($msg);
+    }
+
+    /**
+     * @param $name
+     *
+     * @return bool
+     */
+    public function hasBpNode($name)
+    {
+        return array_key_exists($name, $this->nodes)
+            && $this->nodes[$name] instanceof BpNode;
+    }
+
+    /**
+     * Set the state for a specific node
+     *
+     * @param string $name  Node name
+     * @param int    $state Desired state
+     *
+     * @return $this
+     */
+    public function setNodeState($name, $state)
+    {
+        $this->getNode($name)->setState($state);
+        return $this;
+    }
+
+    /**
+     * Add the given node to the given BpNode
+     *
+     * @param $name
+     * @param BpNode $node
+     *
+     * @return $this
+     */
+    public function addNode($name, BpNode $node)
+    {
+        if (array_key_exists($name, $this->nodes)) {
+            $this->warn(
+                sprintf(
+                    mt('businessprocess', 'Node "%s" has been defined twice'),
+                    $name
+                )
+            );
+        }
+
+        $this->nodes[$name] = $node;
+
+        if ($node->getDisplay() > 0) {
+            if (! $this->isRootNode($name)) {
+                $this->addRootNode($name);
+            }
+        } else {
+            if ($this->isRootNode($name)) {
+                $this->removeRootNode($name);
+            }
+        }
+
+
+        return $this;
+    }
+
+    /**
+     * Remove all occurrences of a specific node by name
+     *
+     * @param $name
+     */
+    public function removeNode($name)
+    {
+        unset($this->nodes[$name]);
+        if (array_key_exists($name, $this->root_nodes)) {
+            unset($this->root_nodes[$name]);
+        }
+
+        foreach ($this->getBpNodes() as $node) {
+            if ($node->hasChild($name)) {
+                $node->removeChild($name);
+            }
+        }
+    }
+
+    /**
+     * Get all business process nodes
+     *
+     * @return BpNode[]
+     */
+    public function getBpNodes()
+    {
+        $nodes = array();
+
+        foreach ($this->nodes as $node) {
+            if ($node instanceof BpNode) {
+                $nodes[$node->getName()] = $node;
+            }
+        }
+
+        return $nodes;
+    }
+
+    /**
+     * List all business process node names
+     *
+     * @return array
+     */
+    public function listBpNodes()
+    {
+        $nodes = array();
+
+        foreach ($this->getBpNodes() as $name => $node) {
+            $alias = $node->getAlias();
+            $nodes[$name] = $name === $alias ? $name : sprintf('%s (%s)', $alias, $node);
+        }
+
+        return $nodes;
+    }
+
+    /**
+     * All business process nodes defined in this config but not
+     * assigned to any parent
+     *
+     * @return BpNode[]
+     */
+    public function getUnboundNodes()
+    {
+        $nodes = array();
+
+        foreach ($this->getBpNodes() as $name => $node) {
+            if ($node->hasParents()) {
+                continue;
+            }
+
+            if ($node->getDisplay() === 0) {
+                $nodes[$name] = $node;
+            }
+        }
+
+        return $nodes;
+    }
+
+    /**
+     * @return bool
+     */
+    public function hasWarnings()
+    {
+        return ! empty($this->warnings);
+    }
+
+    /**
+     * @return array
+     */
+    public function getWarnings()
+    {
+        return $this->warnings;
+    }
+
+    /**
+     * @return bool
+     */
+    public function hasErrors()
+    {
+        return ! empty($this->errors) || $this->isEmpty();
+    }
+
+    /**
+     * @return array
+     */
+    public function getErrors()
+    {
+        $errors = $this->errors;
+        if ($this->isEmpty()) {
+            $errors[] = sprintf(
+                $this->translate(
+                    'No business process nodes for "%s" have been defined yet'
+                ),
+                $this->getTitle()
+            );
+        }
+        return $errors;
+    }
+
+    /**
+     * Translation helper
+     *
+     * @param $msg
+     *
+     * @return mixed|string
+     */
+    public function translate($msg)
+    {
+        return mt('businessprocess', $msg);
+    }
+
+    /**
+     * Add a message to our warning stack
+     *
+     * @param $msg
+     */
+    protected function warn($msg)
+    {
+        $args = func_get_args();
+        array_shift($args);
+        $this->warnings[] = vsprintf($msg, $args);
+    }
+
+    /**
+     * @param string $msg,...
+     *
+     * @return $this
+     *
+     * @throws IcingaException
+     */
+    public function addError($msg)
+    {
+        $args = func_get_args();
+        array_shift($args);
+        if (! empty($args)) {
+            $msg = vsprintf($msg, $args);
+        }
+        if ($this->throwErrors) {
+            throw new IcingaException($msg);
+        }
+
+        if (! in_array($msg, $this->errors)) {
+            $this->errors[] = $msg;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Decide whether errors should be thrown or collected
+     *
+     * @param bool $throw
+     *
+     * @return $this
+     */
+    public function throwErrors($throw = true)
+    {
+        $this->throwErrors = $throw;
+        return $this;
+    }
+
+    /**
+     * Begin loop detection for the given name
+     *
+     * Will throw a NestingError in case this node will be met again below itself
+     *
+     * @param $name
+     *
+     * @throws NestingError
+     */
+    public function beginLoopDetection($name)
+    {
+        // echo "Begin loop $name\n";
+        if (array_key_exists($name, $this->loopDetection)) {
+            $loop = array_keys($this->loopDetection);
+            $loop[] = $name;
+            $this->loopDetection = array();
+            throw new NestingError('Loop detected: %s', implode(' -> ', $loop));
+        }
+
+        $this->loopDetection[$name] = true;
+    }
+
+    /**
+     * Remove the given name from the loop detection stack
+     *
+     * @param $name
+     */
+    public function endLoopDetection($name)
+    {
+        // echo "End loop $this->name\n";
+        unset($this->loopDetection[$name]);
+    }
+
+    /**
+     * Whether this configuration has any Nodes
+     *
+     * @return bool
+     */
+    public function isEmpty()
+    {
+        // This is faster
+        if (! empty($this->root_nodes)) {
+            return false;
+        }
+
+        return count($this->listBpNodes()) === 0;
+    }
+
+    /**
+     * Export the config to array
+     *
+     * @param   bool    $flat   If false, children will be added to the array key children, else the array will be flat
+     *
+     * @return  array
+     */
+    public function toArray($flat = false)
+    {
+        $data = [
+            'name' => $this->getTitle(),
+            'path' => $this->getTitle()
+        ];
+
+        $children = [];
+
+        foreach ($this->getChildren() as $node) {
+            if ($flat) {
+                $children = array_merge($children, $node->toArray($data, $flat));
+            } else {
+                $children[] = $node->toArray($data, $flat);
+            }
+        }
+
+        if ($flat) {
+            $data = [$data];
+
+            if (! empty($children)) {
+                $data = array_merge($data, $children);
+            }
+        } else {
+            $data['children'] = $children;
+        }
+
+        return $data;
+    }
+
+    /**
+     * Escape the given node name
+     *
+     * @param string $name
+     *
+     * @return string
+     */
+    public static function escapeName(string $name): string
+    {
+        return preg_replace('/((?<!\\\\);)/', '\\\\$1', $name);
+    }
+
+    /**
+     * Unescape the given node name
+     *
+     * @param string $name
+     *
+     * @return string
+     */
+    public static function unescapeName(string $name): string
+    {
+        return str_replace('\\;', ';', $name);
+    }
+
+    /**
+     * Join the given two name parts together
+     *
+     * The used separator is the semicolon. If a semicolon exists in either part, it's escaped.
+     *
+     * @param string $name
+     * @param ?string $suffix
+     *
+     * @return string
+     */
+    public static function joinNodeName(string $name, ?string $suffix = null): string
+    {
+        return self::escapeName($name) . ($suffix ? ";$suffix" : '');
+    }
+
+    /**
+     * Split the given node name into two parts
+     *
+     * The first part is always a string, with any semicolons unescaped.
+     * The second part may be null or a string otherwise.
+     *
+     * @param string $nodeName
+     *
+     * @return array
+     */
+    public static function splitNodeName(string $nodeName): array
+    {
+        $parts = preg_split('/(?<!\\\\);/', $nodeName, 2);
+        $parts[0] = self::unescapeName($parts[0]);
+
+        return array_pad($parts, 2, null);
+    }
+
+    /**
+     * Set whether the config is faulty
+     *
+     * @param bool $isFaulty
+     *
+     * @return $this
+     */
+    public function setFaulty(bool $isFaulty = true): self
+    {
+        $this->isFaulty = $isFaulty;
+
+        return $this;
+    }
+
+    /**
+     * Get whether the config is faulty
+     *
+     * @return bool
+     */
+    public function isFaulty(): bool
+    {
+        return $this->isFaulty;
+    }
+}
diff --git a/library/Businessprocess/BpNode.php b/library/Businessprocess/BpNode.php
new file mode 100644
index 0000000..ab76e3e
--- /dev/null
+++ b/library/Businessprocess/BpNode.php
@@ -0,0 +1,646 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Icinga\Exception\ConfigurationError;
+use Icinga\Exception\NotFoundError;
+use Icinga\Module\Businessprocess\Exception\NestingError;
+use ipl\Web\Widget\Icon;
+
+class BpNode extends Node
+{
+    const OP_AND = '&';
+    const OP_OR  = '|';
+    const OP_XOR  = '^';
+    const OP_NOT  = '!';
+    const OP_DEGRADED  = '%';
+
+    protected $operator = '&';
+
+    protected $url;
+
+    protected $display = 0;
+
+    /** @var  ?Node[] */
+    protected $children;
+
+    /** @var array */
+    protected $childNames = array();
+    protected $counters;
+    protected $missing = null;
+    protected $empty = null;
+    protected $missingChildren;
+    protected $stateOverrides = [];
+
+    protected static $emptyStateSummary = array(
+        'CRITICAL'            => 0,
+        'CRITICAL-HANDLED'    => 0,
+        'WARNING'             => 0,
+        'WARNING-HANDLED'     => 0,
+        'UNKNOWN'             => 0,
+        'UNKNOWN-HANDLED'     => 0,
+        'OK'                  => 0,
+        'PENDING'             => 0,
+        'MISSING'             => 0,
+        'EMPTY'               => 0,
+    );
+
+    protected static $sortStateInversionMap = array(
+        4 => 0,
+        3 => 0,
+        2 => 2,
+        1 => 1,
+        0 => 4
+    );
+
+    protected $className = 'process';
+
+    public function __construct($object)
+    {
+        $this->name = BpConfig::escapeName($object->name);
+        $this->alias = BpConfig::unescapeName($object->name);
+        $this->operator = $object->operator;
+        $this->childNames = $object->child_names;
+    }
+
+    public function getStateSummary()
+    {
+        if ($this->counters === null) {
+            $this->getState();
+            $this->counters = self::$emptyStateSummary;
+
+            foreach ($this->getChildren() as $child) {
+                if ($child->isMissing()) {
+                    $this->counters['MISSING']++;
+                } else {
+                    $state = $child->getStateName($this->getChildState($child));
+                    if ($child->isHandled() && ($state !== 'UP' && $state !== 'OK')) {
+                        $state = $state . '-HANDLED';
+                    }
+
+                    if ($state === 'DOWN') {
+                        $this->counters['CRITICAL']++;
+                    } elseif ($state === 'DOWN-HANDLED') {
+                        $this->counters['CRITICAL-HANDLED']++;
+                    } elseif ($state === 'UNREACHABLE') {
+                        $this->counters['UNKNOWN']++;
+                    } elseif ($state === 'UNREACHABLE-HANDLED') {
+                        $this->counters['UNKNOWN-HANDLED']++;
+                    } elseif ($state === 'PENDING-HANDLED') {
+                        $this->counters['PENDING']++;
+                    } elseif ($state === 'UP') {
+                        $this->counters['OK']++;
+                    } else {
+                        $this->counters[$state]++;
+                    }
+                }
+            }
+        }
+        return $this->counters;
+    }
+
+    public function hasProblems()
+    {
+        if ($this->isProblem()) {
+            return true;
+        }
+
+        $okStates = array('OK', 'UP', 'PENDING', 'MISSING');
+
+        foreach ($this->getStateSummary() as $state => $cnt) {
+            if ($cnt !== 0 && ! in_array($state, $okStates)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * @param Node $node
+     * @return $this
+     * @throws ConfigurationError
+     */
+    public function addChild(Node $node)
+    {
+        if ($this->children === null) {
+            $this->getChildren();
+        }
+
+        $name = $node->getName();
+        if (array_key_exists($name, $this->children)) {
+            throw new ConfigurationError(
+                'Node "%s" has been defined more than once',
+                $name
+            );
+        }
+
+        $this->children[$name] = $node;
+        $this->childNames[] = $name;
+        $node->addParent($this);
+        return $this;
+    }
+
+    public function getProblematicChildren()
+    {
+        $problems = array();
+
+        foreach ($this->getChildren() as $child) {
+            if (isset($this->stateOverrides[$child->getName()])) {
+                $problem = $this->getChildState($child) > 0;
+            } else {
+                $problem = $child->isProblem() || ($child instanceof BpNode && $child->hasProblems());
+            }
+
+            if ($problem) {
+                $problems[] = $child;
+            }
+        }
+
+        return $problems;
+    }
+
+    public function hasChild($name)
+    {
+        return in_array($name, $this->getChildNames());
+    }
+
+    public function removeChild($name)
+    {
+        if (($key = array_search($name, $this->getChildNames())) !== false) {
+            unset($this->childNames[$key]);
+
+            if (! empty($this->children)) {
+                unset($this->children[$name]);
+            }
+
+            $this->childNames = array_values($this->childNames);
+        }
+
+        return $this;
+    }
+
+    public function getProblemTree()
+    {
+        $tree = array();
+
+        foreach ($this->getProblematicChildren() as $child) {
+            $name = $child->getName();
+            $tree[$name] = array(
+                'node'     => $child,
+                'children' => array()
+            );
+            if ($child instanceof BpNode) {
+                $tree[$name]['children'] = $child->getProblemTree();
+            }
+        }
+
+        return $tree;
+    }
+
+    /**
+     * Get the problem nodes as tree reduced to the nodes which have the same state as the business process
+     *
+     * @param bool $rootCause Reduce nodes to the nodes which are responsible for the state of the business process
+     *
+     * @return array
+     */
+    public function getProblemTreeBlame($rootCause = false)
+    {
+        $tree = [];
+        $nodeState = $this->getState();
+
+        if ($nodeState !== 0) {
+            foreach ($this->getChildren() as $child) {
+                $childState = $this->getChildState($child);
+                $childState = $rootCause ? $child->getSortingState($childState) : $childState;
+                if (($rootCause ? $this->getSortingState() : $nodeState) === $childState) {
+                    $name = $child->getName();
+                    $tree[$name] = [
+                        'children' => [],
+                        'node'     => $child
+                    ];
+                    if ($child instanceof BpNode) {
+                        $tree[$name]['children'] = $child->getProblemTreeBlame($rootCause);
+                    }
+                }
+            }
+        }
+
+        return $tree;
+    }
+
+
+    public function isMissing()
+    {
+        if ($this->missing === null) {
+            $exists = false;
+            $bp = $this->getBpConfig();
+            $bp->beginLoopDetection($this->name);
+            foreach ($this->getChildren() as $child) {
+                if (! $child->isMissing()) {
+                    $exists = true;
+                }
+            }
+            $bp->endLoopDetection($this->name);
+            $this->missing = ! $exists && ! empty($this->getChildren());
+        }
+        return $this->missing;
+    }
+
+    public function isEmpty()
+    {
+        $bp = $this->getBpConfig();
+        $empty = true;
+        if ($this->countChildren()) {
+            $bp->beginLoopDetection($this->name);
+            foreach ($this->getChildren() as $child) {
+                if ($child instanceof MonitoredNode) {
+                    $empty = false;
+                    break;
+                } elseif (!$child->isEmpty()) {
+                    $empty = false;
+                }
+            }
+            $bp->endLoopDetection($this->name);
+        }
+        $this->empty = $empty;
+
+        return $this->empty;
+    }
+
+
+    public function getMissingChildren()
+    {
+        if ($this->missingChildren === null) {
+            $missing = array();
+
+            foreach ($this->getChildren() as $child) {
+                if ($child->isMissing()) {
+                    $missing[$child->getAlias() ?? $child->getName()] = $child;
+                }
+
+                foreach ($child->getMissingChildren() as $m) {
+                    $missing[$m->getAlias() ?? $m->getName()] = $m;
+                }
+            }
+
+            $this->missingChildren = $missing;
+        }
+
+        return $this->missingChildren;
+    }
+
+    public function getOperator()
+    {
+        return $this->operator;
+    }
+
+    public function setOperator($operator)
+    {
+        $this->assertValidOperator($operator);
+        $this->operator = $operator;
+        return $this;
+    }
+
+    protected function assertValidOperator($operator)
+    {
+        switch ($operator) {
+            case self::OP_AND:
+            case self::OP_OR:
+            case self::OP_XOR:
+            case self::OP_NOT:
+            case self::OP_DEGRADED:
+                return;
+            default:
+                if (is_numeric($operator)) {
+                    return;
+                }
+        }
+
+        throw new ConfigurationError(
+            'Got invalid operator: %s',
+            $operator
+        );
+    }
+
+    public function setInfoUrl($url)
+    {
+        $this->url = $url;
+        return $this;
+    }
+
+    public function hasInfoUrl()
+    {
+        return ! empty($this->url);
+    }
+
+    public function getInfoUrl()
+    {
+        return $this->url;
+    }
+
+    public function setStateOverrides(array $overrides, $name = null)
+    {
+        if ($name === null) {
+            $this->stateOverrides = $overrides;
+        } else {
+            $this->stateOverrides[$name] = $overrides;
+        }
+
+        return $this;
+    }
+
+    public function getStateOverrides($name = null)
+    {
+        $overrides = null;
+        if ($name !== null) {
+            if (isset($this->stateOverrides[$name])) {
+                $overrides = $this->stateOverrides[$name];
+            }
+        } else {
+            $overrides = $this->stateOverrides;
+        }
+
+        return $overrides;
+    }
+
+    public function getAlias()
+    {
+        return $this->alias ? preg_replace('~_~', ' ', $this->alias) : $this->name;
+    }
+
+    /**
+     * @return int
+     */
+    public function getState()
+    {
+        if ($this->state === null) {
+            try {
+                $this->reCalculateState();
+            } catch (NestingError $e) {
+                $this->getBpConfig()->addError(
+                    $this->getBpConfig()->translate('Nesting error detected: %s'),
+                    $e->getMessage()
+                );
+
+                // Failing nodes are unknown
+                $this->state = 3;
+            }
+        }
+
+        return $this->state;
+    }
+
+    /**
+     * Get the given child's state, possibly adjusted by override rules
+     *
+     * @param Node|string $child
+     * @return int
+     */
+    public function getChildState($child)
+    {
+        if (! $child instanceof Node) {
+            $child = $this->getChildByName($child);
+        }
+
+        $childName = $child->getName();
+        $childState = $child->getState();
+        if (! isset($this->stateOverrides[$childName][$childState])) {
+            return $childState;
+        }
+
+        return $this->stateOverrides[$childName][$childState];
+    }
+
+    public function getHtmlId()
+    {
+        return 'businessprocess-' . preg_replace('/[\r\n\t\s]/', '_', $this->getName());
+    }
+
+    protected function invertSortingState($state)
+    {
+        return self::$sortStateInversionMap[$state >> self::SHIFT_FLAGS] << self::SHIFT_FLAGS;
+    }
+
+    /**
+     * @return $this
+     */
+    public function reCalculateState()
+    {
+        $bp = $this->getBpConfig();
+
+        $sort_states = array();
+        $lastStateChange = 0;
+
+        if ($this->isEmpty()) {
+            // TODO: delegate this to operators, should mostly fail
+            $this->setState(self::NODE_EMPTY);
+            return $this;
+        }
+
+        foreach ($this->getChildren() as $child) {
+            $bp->beginLoopDetection($this->name);
+            if ($child instanceof MonitoredNode && $child->isMissing()) {
+                if ($child instanceof HostNode) {
+                    $child->setState(self::ICINGA_UNREACHABLE);
+                } else {
+                    $child->setState(self::ICINGA_UNKNOWN);
+                }
+
+                $child->setMissing();
+            }
+            $sort_states[] = $child->getSortingState($this->getChildState($child));
+            $lastStateChange = max($lastStateChange, $child->getLastStateChange());
+            $bp->endLoopDetection($this->name);
+        }
+
+        $this->setLastStateChange($lastStateChange);
+
+        switch ($this->getOperator()) {
+            case self::OP_AND:
+                $sort_state = max($sort_states);
+                break;
+            case self::OP_NOT:
+                $sort_state = $this->invertSortingState(max($sort_states));
+                break;
+            case self::OP_OR:
+                $sort_state = min($sort_states);
+                break;
+            case self::OP_XOR:
+                $actualGood = 0;
+                foreach ($sort_states as $s) {
+                    if ($this->sortStateTostate($s) === self::ICINGA_OK) {
+                        $actualGood++;
+                    }
+                }
+
+                if ($actualGood === 1) {
+                    $this->state = self::ICINGA_OK;
+                } else {
+                    $this->state = self::ICINGA_CRITICAL;
+                }
+
+                return $this;
+            case self::OP_DEGRADED:
+                $maxState = max($sort_states);
+                $flags = $maxState & 0xf;
+
+                $maxIcingaState = $this->sortStateTostate($maxState);
+                $warningState = ($this->stateToSortState(self::ICINGA_WARNING) << self::SHIFT_FLAGS) + $flags;
+
+                $sort_state = ($maxIcingaState === self::ICINGA_CRITICAL) ? $warningState : $maxState;
+                break;
+            default:
+                // MIN:
+                $sort_state = 3 << self::SHIFT_FLAGS;
+
+                if (count($sort_states) >= $this->operator) {
+                    $actualGood = 0;
+                    foreach ($sort_states as $s) {
+                        if (($s >> self::SHIFT_FLAGS) === self::ICINGA_OK) {
+                            $actualGood++;
+                        }
+                    }
+
+                    if ($actualGood >= $this->operator) {
+                        // condition is fulfilled
+                        $sort_state = self::ICINGA_OK;
+                    } else {
+                        // worst state if not fulfilled
+                        $sort_state = max($sort_states);
+                    }
+                }
+        }
+        if ($sort_state & self::FLAG_DOWNTIME) {
+            $this->setDowntime(true);
+        }
+        if ($sort_state & self::FLAG_ACK) {
+            $this->setAck(true);
+        }
+
+        $this->state = $this->sortStateTostate($sort_state);
+        return $this;
+    }
+
+    public function checkForLoops()
+    {
+        $bp = $this->getBpConfig();
+        foreach ($this->getChildren() as $child) {
+            $bp->beginLoopDetection($this->name);
+            if ($child instanceof BpNode) {
+                $child->checkForLoops();
+            }
+            $bp->endLoopDetection($this->name);
+        }
+
+        return $this;
+    }
+
+    public function setDisplay($display)
+    {
+        $this->display = (int) $display;
+        return $this;
+    }
+
+    public function getDisplay()
+    {
+        return $this->display;
+    }
+
+    public function setChildNames($names)
+    {
+        $this->childNames = $names;
+        $this->children = null;
+        return $this;
+    }
+
+    public function hasChildren($filter = null)
+    {
+        $childNames = $this->getChildNames();
+        return !empty($childNames);
+    }
+
+    public function getChildNames()
+    {
+        return $this->childNames;
+    }
+
+    public function getChildren($filter = null)
+    {
+        if ($this->children === null) {
+            $this->children = [];
+            foreach ($this->getChildNames() as $name) {
+                $this->children[$name] = $this->getBpConfig()->getNode($name);
+                $this->children[$name]->addParent($this);
+            }
+        }
+
+        return $this->children;
+    }
+
+    /**
+     * return BpNode[]
+     */
+    public function getChildBpNodes()
+    {
+        $children = array();
+
+        foreach ($this->getChildren() as $name => $child) {
+            if ($child instanceof BpNode) {
+                $children[$name] = $child;
+            }
+        }
+
+        return $children;
+    }
+
+    /**
+     * @param $childName
+     * @return Node
+     * @throws NotFoundError
+     */
+    public function getChildByName($childName)
+    {
+        foreach ($this->getChildren() as $name => $child) {
+            if ($name === $childName) {
+                return $child;
+            }
+        }
+
+        throw new NotFoundError('Trying to get missing child %s', $childName);
+    }
+
+    protected function assertNumericOperator()
+    {
+        if (! is_numeric($this->getOperator())) {
+            throw new ConfigurationError('Got invalid operator: %s', $this->operator);
+        }
+    }
+
+    public function operatorHtml()
+    {
+        switch ($this->getOperator()) {
+            case self::OP_AND:
+                return 'AND';
+            case self::OP_OR:
+                return 'OR';
+            case self::OP_XOR:
+                return 'XOR';
+            case self::OP_NOT:
+                return 'NOT';
+            case self::OP_DEGRADED:
+                return 'DEG';
+            default:
+                // MIN
+                $this->assertNumericOperator();
+                return 'min:' . $this->operator;
+        }
+    }
+
+    public function getIcon(): Icon
+    {
+        $this->icon = $this->hasParents() ? 'cubes' : 'sitemap';
+        return parent::getIcon();
+    }
+}
diff --git a/library/Businessprocess/Common/Sort.php b/library/Businessprocess/Common/Sort.php
new file mode 100644
index 0000000..4728af3
--- /dev/null
+++ b/library/Businessprocess/Common/Sort.php
@@ -0,0 +1,158 @@
+<?php
+// Icinga Business Process Modelling | (c) 2023 Icinga GmbH | GPLv2
+
+namespace Icinga\Module\Businessprocess\Common;
+
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Node;
+use InvalidArgumentException;
+use ipl\Stdlib\Str;
+
+trait Sort
+{
+    /** @var ?string Current sort specification */
+    protected $sort;
+
+    /** @var ?callable Actual sorting function */
+    protected $sortFn;
+
+    /**
+     * Get the sort specification
+     *
+     * @return ?string
+     */
+    public function getSort(): ?string
+    {
+        return $this->sort;
+    }
+
+    /**
+     * Set the sort specification
+     *
+     * @param ?string $sort
+     *
+     * @return $this
+     *
+     * @throws InvalidArgumentException When sorting according to the specified specification is not possible
+     */
+    public function setSort(?string $sort): self
+    {
+        if (empty($sort)) {
+            return $this;
+        }
+
+        list($sortBy, $direction) = Str::symmetricSplit($sort, ' ', 2, 'asc');
+
+        switch ($sortBy) {
+            case 'manual':
+                if ($direction === 'asc') {
+                    $this->sortFn = function (array &$nodes) {
+                        $firstNode = reset($nodes);
+                        if ($firstNode instanceof BpNode && $firstNode->getDisplay() > 0) {
+                            $nodes = self::applyManualSorting($nodes);
+                        }
+
+                        // Child nodes don't need to be ordered in this case, their implicit order is significant
+                    };
+                } else {
+                    $this->sortFn = function (array &$nodes) {
+                        $firstNode = reset($nodes);
+                        if ($firstNode instanceof BpNode && $firstNode->getDisplay() > 0) {
+                            uasort($nodes, function (BpNode $a, BpNode $b) {
+                                return $b->getDisplay() <=> $a->getDisplay();
+                            });
+                        } else {
+                            $nodes = array_reverse($nodes);
+                        }
+                    };
+                }
+
+                break;
+            case 'display_name':
+                if ($direction === 'asc') {
+                    $this->sortFn = function (array &$nodes) {
+                        uasort($nodes, function (Node $a, Node $b) {
+                            return strnatcasecmp(
+                                $a->getAlias() ?? $a->getName(),
+                                $b->getAlias() ?? $b->getName()
+                            );
+                        });
+                    };
+                } else {
+                    $this->sortFn = function (array &$nodes) {
+                        uasort($nodes, function (Node $a, Node $b) {
+                            return strnatcasecmp(
+                                $b->getAlias() ?? $b->getName(),
+                                $a->getAlias() ?? $a->getName()
+                            );
+                        });
+                    };
+                }
+
+                break;
+            case 'state':
+                if ($direction === 'asc') {
+                    $this->sortFn = function (array &$nodes) {
+                        uasort($nodes, function (Node $a, Node $b) {
+                            return $a->getSortingState() <=> $b->getSortingState();
+                        });
+                    };
+                } else {
+                    $this->sortFn = function (array &$nodes) {
+                        uasort($nodes, function (Node $a, Node $b) {
+                            return $b->getSortingState() <=> $a->getSortingState();
+                        });
+                    };
+                }
+
+                break;
+            default:
+                throw new InvalidArgumentException(sprintf(
+                    "Can't sort by %s. It's only possible to sort by manual order, display_name or state",
+                    $sortBy
+                ));
+        }
+
+        $this->sort = $sort;
+
+        return $this;
+    }
+
+    /**
+     * Sort the given nodes as specified by {@see setSort()}
+     *
+     * If {@see setSort()} has not been called yet, the default sort specification is used
+     *
+     * @param array $nodes
+     *
+     * @return array
+     */
+    public function sort(array $nodes): array
+    {
+        if (empty($nodes)) {
+            return $nodes;
+        }
+
+        if ($this->sortFn !== null) {
+            call_user_func_array($this->sortFn, [&$nodes]);
+        }
+
+        return $nodes;
+    }
+
+    /**
+     * Apply manual sort order on the given process nodes
+     *
+     * @param array $bpNodes
+     *
+     * @return array
+     */
+    public static function applyManualSorting(array $bpNodes): array
+    {
+        uasort($bpNodes, function (BpNode $a, BpNode $b) {
+            return $a->getDisplay() <=> $b->getDisplay();
+        });
+
+        return $bpNodes;
+    }
+}
diff --git a/library/Businessprocess/Director/ShipConfigFiles.php b/library/Businessprocess/Director/ShipConfigFiles.php
new file mode 100644
index 0000000..17b9e1f
--- /dev/null
+++ b/library/Businessprocess/Director/ShipConfigFiles.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Director;
+
+use Icinga\Module\Director\Hook\ShipConfigFilesHook;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+class ShipConfigFiles extends ShipConfigFilesHook
+{
+    public function fetchFiles()
+    {
+        $files = array();
+
+        $storage = LegacyStorage::getInstance();
+
+        foreach ($storage->listProcesses() as $name => $title) {
+            $files['processes/' . $name . '.bp'] = $storage->getSource($name);
+        }
+
+        return $files;
+    }
+}
diff --git a/library/Businessprocess/Exception/ModificationError.php b/library/Businessprocess/Exception/ModificationError.php
new file mode 100644
index 0000000..430d513
--- /dev/null
+++ b/library/Businessprocess/Exception/ModificationError.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Exception;
+
+use Icinga\Exception\IcingaException;
+
+class ModificationError extends IcingaException
+{
+}
diff --git a/library/Businessprocess/Exception/NestingError.php b/library/Businessprocess/Exception/NestingError.php
new file mode 100644
index 0000000..89cbf81
--- /dev/null
+++ b/library/Businessprocess/Exception/NestingError.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Exception;
+
+use Icinga\Exception\IcingaException;
+
+class NestingError extends IcingaException
+{
+}
diff --git a/library/Businessprocess/HostNode.php b/library/Businessprocess/HostNode.php
new file mode 100644
index 0000000..df25630
--- /dev/null
+++ b/library/Businessprocess/HostNode.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Icinga\Module\Businessprocess\Web\Url;
+
+class HostNode extends MonitoredNode
+{
+    protected $sortStateToStateMap = array(
+        4 => self::ICINGA_DOWN,
+        3 => self::ICINGA_UNREACHABLE,
+        1 => self::ICINGA_PENDING,
+        0 => self::ICINGA_UP
+    );
+
+    protected $stateToSortStateMap = array(
+        self::ICINGA_PENDING     => 1,
+        self::ICINGA_UNREACHABLE => 3,
+        self::ICINGA_DOWN        => 4,
+        self::ICINGA_UP          => 0,
+    );
+
+    protected $stateNames = array(
+        'UP',
+        'DOWN',
+        'UNREACHABLE',
+        99 => 'PENDING'
+    );
+
+    protected $hostname;
+
+    protected $className = 'host';
+
+    protected $icon = 'laptop';
+
+    public function __construct($object)
+    {
+        $this->name = BpConfig::joinNodeName($object->hostname, 'Hoststatus');
+        $this->hostname = $object->hostname;
+        if (isset($object->state)) {
+            $this->setState($object->state);
+        } else {
+            $this->setState(0)->setMissing();
+        }
+    }
+
+    public function getHostname()
+    {
+        return $this->hostname;
+    }
+
+    public function getUrl()
+    {
+        $params = array(
+            'host' => $this->getHostname(),
+        );
+
+        if ($this->getBpConfig()->hasBackendName()) {
+            $params['backend'] = $this->getBpConfig()->getBackendName();
+        }
+
+        return Url::fromPath('businessprocess/host/show', $params);
+    }
+}
diff --git a/library/Businessprocess/IcingaDbObject.php b/library/Businessprocess/IcingaDbObject.php
new file mode 100644
index 0000000..cad459f
--- /dev/null
+++ b/library/Businessprocess/IcingaDbObject.php
@@ -0,0 +1,94 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Icinga\Module\Icingadb\Common\Auth;
+use Icinga\Module\Icingadb\Common\Database as IcingadbDatabase;
+use Icinga\Module\Icingadb\Model\Host;
+use Icinga\Module\Icingadb\Model\Service;
+use ipl\Sql\Connection as IcingaDbConnection;
+use ipl\Web\Filter\QueryString;
+
+class IcingaDbObject
+{
+    use IcingadbDatabase;
+
+    use Auth;
+
+    /** @var BpConfig */
+    protected $config;
+
+    /** @var IcingaDbConnection */
+    protected $conn;
+
+    public function __construct()
+    {
+        $this->conn = $this->getDb();
+    }
+
+    public function fetchHosts($filter = null)
+    {
+
+        $hosts = Host::on($this->conn);
+
+        if ($filter !== null) {
+            $filterQuery = QueryString::parse($filter);
+
+            $hosts->filter($filterQuery);
+        }
+
+        $hosts->orderBy('host.name');
+
+        $this->applyIcingaDbRestrictions($hosts);
+
+        return $hosts;
+    }
+
+    public function fetchServices($filter)
+    {
+        $services = Service::on($this->conn)
+            ->with('host');
+
+        if ($filter !== null) {
+            $filterQuery = QueryString::parse($filter);
+
+            $services->filter($filterQuery);
+        }
+
+        $services->orderBy('service.name');
+
+        $this->applyIcingaDbRestrictions($services);
+
+        return $services;
+    }
+
+    public function yieldHostnames($filter = null)
+    {
+        foreach ($this->fetchHosts($filter) as $host) {
+            yield $host->name;
+        }
+    }
+
+    public function yieldServicenames($host)
+    {
+        $filter = "host.name=$host";
+
+        foreach ($this->fetchServices($filter) as $service) {
+            yield $service->name;
+        }
+    }
+
+    public static function applyIcingaDbRestrictions($query)
+    {
+        $object = new self;
+        $object->applyRestrictions($query);
+
+        return $object;
+    }
+
+    public static function fetchDb()
+    {
+        $object = new self;
+        return $object->getDb();
+    }
+}
diff --git a/library/Businessprocess/ImportedNode.php b/library/Businessprocess/ImportedNode.php
new file mode 100644
index 0000000..a0eb6b1
--- /dev/null
+++ b/library/Businessprocess/ImportedNode.php
@@ -0,0 +1,139 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Exception;
+
+class ImportedNode extends BpNode
+{
+    /** @var BpConfig */
+    protected $parentBp;
+
+    /** @var string */
+    protected $configName;
+
+    /** @var string */
+    protected $nodeName;
+
+    /** @var BpNode */
+    protected $importedNode;
+
+    /** @var string */
+    protected $className = 'process subtree';
+
+    /** @var string */
+    protected $icon = 'download';
+
+    public function __construct(BpConfig $parentBp, $object)
+    {
+        $this->parentBp = $parentBp;
+        $this->configName = $object->configName;
+        $this->nodeName = BpConfig::escapeName($object->node);
+
+        parent::__construct((object) [
+            'name'          => '@' . $this->configName . ':' . $this->nodeName,
+            'operator'      => null,
+            'child_names'   => null
+        ]);
+    }
+
+    /**
+     * @return string
+     */
+    public function getConfigName()
+    {
+        return $this->configName;
+    }
+
+    /**
+     * @return string
+     */
+    public function getNodeName()
+    {
+        return $this->nodeName;
+    }
+
+    public function getIdentifier()
+    {
+        return $this->getName();
+    }
+
+    public function getBpConfig()
+    {
+        if ($this->bp === null) {
+            $this->bp = $this->parentBp->getImportedConfig($this->configName);
+        }
+
+        return $this->bp;
+    }
+
+    public function getAlias()
+    {
+        return $this->importedNode()->getAlias();
+    }
+
+    public function getOperator()
+    {
+        if ($this->operator === null) {
+            $this->operator = $this->importedNode()->getOperator();
+        }
+
+        return $this->operator;
+    }
+
+    public function getChildNames()
+    {
+        if ($this->childNames === null) {
+            $this->childNames = $this->importedNode()->getChildNames();
+        }
+
+        return $this->childNames;
+    }
+
+    public function isMissing()
+    {
+        if ($this->missing === null && $this->getBpConfig()->isFaulty()) {
+            $this->missing = true;
+        }
+
+        return parent::isMissing();
+    }
+
+    /**
+     * @return BpNode
+     */
+    protected function importedNode()
+    {
+        if ($this->importedNode === null) {
+            try {
+                $this->importedNode = $this->getBpConfig()->getBpNode($this->nodeName);
+            } catch (Exception $e) {
+                return $this->createFailedNode($e);
+            }
+        }
+
+        return $this->importedNode;
+    }
+
+    /**
+     * @param Exception $e
+     *
+     * @return BpNode
+     */
+    protected function createFailedNode(Exception $e)
+    {
+        $this->parentBp->addError($e->getMessage());
+        $node = new BpNode((object) array(
+            'name'        => $this->getName(),
+            'operator'    => '&',
+            'child_names' => []
+        ));
+        $node->setBpConfig($this->getBpConfig());
+        $node->setState(2);
+        $node->setMissing()
+            ->setDowntime(false)
+            ->setAck(false);
+
+        return $node;
+    }
+}
diff --git a/library/Businessprocess/Metadata.php b/library/Businessprocess/Metadata.php
new file mode 100644
index 0000000..b640fb8
--- /dev/null
+++ b/library/Businessprocess/Metadata.php
@@ -0,0 +1,264 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Icinga\Application\Icinga;
+use Icinga\Authentication\Auth;
+use Icinga\Exception\ProgrammingError;
+use Icinga\User;
+
+class Metadata
+{
+    /** @var string Configuration name */
+    protected $name;
+
+    protected $properties = array(
+        'Title'         => null,
+        'Description'   => null,
+        'Owner'         => null,
+        'AllowedUsers'  => null,
+        'AllowedGroups' => null,
+        'AllowedRoles'  => null,
+        'AddToMenu'     => null,
+        'Backend'       => null,
+        'Statetype'     => null,
+        'ManualOrder'   => null,
+        // 'SLAHosts'      => null
+    );
+
+    public function __construct($name)
+    {
+        $this->name = $name;
+    }
+
+    public function getTitle()
+    {
+        if ($this->has('Title')) {
+            return $this->get('Title');
+        } else {
+            return $this->name;
+        }
+    }
+
+    public function getExtendedTitle()
+    {
+        $title = $this->getTitle();
+
+        if ($title === $this->name) {
+            return $title;
+        } else {
+            return sprintf('%s (%s)', $title, $this->name);
+        }
+    }
+
+    public function getProperties()
+    {
+        return $this->properties;
+    }
+
+    public function hasKey($key)
+    {
+        return array_key_exists($key, $this->properties);
+    }
+
+    public function get($key, $default = null)
+    {
+        $this->assertKeyExists($key);
+        if ($this->properties[$key] === null) {
+            return $default;
+        }
+
+        return $this->properties[$key];
+    }
+
+    public function set($key, $value)
+    {
+        $this->assertKeyExists($key);
+        $this->properties[$key] = $value;
+
+        return $this;
+    }
+
+    public function isNull($key)
+    {
+        return null === $this->get($key);
+    }
+
+    public function has($key)
+    {
+        return null !== $this->get($key);
+    }
+
+    protected function assertKeyExists($key)
+    {
+        if (! $this->hasKey($key)) {
+            throw new ProgrammingError('Trying to access invalid header key: %s', $key);
+        }
+
+        return $this;
+    }
+
+    public function hasRestrictions()
+    {
+        return ! (
+            $this->isNull('AllowedUsers')
+            && $this->isNull('AllowedGroups')
+            && $this->isNull('AllowedRoles')
+        );
+    }
+
+    protected function getAuth()
+    {
+        return Auth::getInstance();
+    }
+
+    public function canModify(Auth $auth = null)
+    {
+        if ($auth === null) {
+            if (Icinga::app()->isCli()) {
+                return true;
+            } else {
+                $auth = $this->getAuth();
+            }
+        }
+
+        return $this->canRead($auth) && (
+            $auth->hasPermission('businessprocess/modify')
+            || $this->ownerIs($auth->getUser()->getUsername())
+        );
+    }
+
+    public function canRead(Auth $auth = null)
+    {
+        if ($auth === null) {
+            if (Icinga::app()->isCli()) {
+                return true;
+            } else {
+                $auth = $this->getAuth();
+            }
+        }
+
+        if ($auth->hasPermission('businessprocess/showall')) {
+            return true;
+        }
+
+        $prefixes = $auth->getRestrictions('businessprocess/prefix');
+        if (! empty($prefixes)) {
+            if (! $this->nameIsPrefixedWithOneOf($prefixes)) {
+                return false;
+            }
+        }
+
+        if (! $this->hasRestrictions()) {
+            return true;
+        }
+
+        if (! $auth->isAuthenticated()) {
+            return false;
+        }
+
+        return $this->userCanRead($auth->getUser());
+    }
+
+    public function nameIsPrefixedWithOneOf(array $prefixes)
+    {
+        foreach ($prefixes as $prefix) {
+            if (substr($this->name, 0, strlen($prefix)) === $prefix) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    protected function userCanRead(User $user)
+    {
+        $username = $user->getUsername();
+
+        return $this->ownerIs($username)
+            || $this->isInAllowedUserList($username)
+            || $this->isMemberOfAllowedGroups($user)
+            || $this->hasOneOfTheAllowedRoles($user);
+    }
+
+    public function ownerIs($username)
+    {
+        return $this->get('Owner') === $username;
+    }
+
+    public function listAllowedUsers()
+    {
+        // TODO: $this->get('AllowedUsers', array());
+        $list = $this->get('AllowedUsers');
+        if ($list === null) {
+            return array();
+        } else {
+            return $this->splitCommaSeparated($list);
+        }
+    }
+
+    public function listAllowedGroups()
+    {
+        $list = $this->get('AllowedGroups');
+        if ($list === null) {
+            return array();
+        } else {
+            return $this->splitCommaSeparated($list);
+        }
+    }
+
+    public function listAllowedRoles()
+    {
+        $list = $this->get('AllowedRoles');
+        if ($list === null) {
+            return array();
+        } else {
+            return $this->splitCommaSeparated($list);
+        }
+    }
+
+    public function isInAllowedUserList($username)
+    {
+        foreach ($this->listAllowedUsers() as $allowedUser) {
+            if ($username === $allowedUser) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function isMemberOfAllowedGroups(User $user)
+    {
+        foreach ($this->listAllowedGroups() as $group) {
+            if ($user->isMemberOf($group)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function hasOneOfTheAllowedRoles(User $user)
+    {
+        foreach ($this->listAllowedRoles() as $roleName) {
+            foreach ($user->getRoles() as $role) {
+                if ($role->getName() === $roleName) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    public function isManuallyOrdered()
+    {
+        return $this->get('ManualOrder') === 'yes';
+    }
+
+    protected function splitCommaSeparated($string)
+    {
+        return preg_split('/\s*,\s*/', $string, -1, PREG_SPLIT_NO_EMPTY);
+    }
+}
diff --git a/library/Businessprocess/Modification/NodeAction.php b/library/Businessprocess/Modification/NodeAction.php
new file mode 100644
index 0000000..b5baa5d
--- /dev/null
+++ b/library/Businessprocess/Modification/NodeAction.php
@@ -0,0 +1,179 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Exception\ModificationError;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Exception\ProgrammingError;
+
+/**
+ * Abstract NodeAction class
+ *
+ * Every instance of a NodeAction represents a single applied change. Changes are pushed to
+ * a stack and consumed from there. When persisted, NodeActions are serialized with their name,
+ * node name and optionally additional properties according preserveProperties. For each property
+ * that should be preserved, getter and setter methods have to be defined.
+ *
+ * @package Icinga\Module\Businessprocess
+ */
+abstract class NodeAction
+{
+    /** @var string Name of this action (currently create, modify, remove) */
+    protected $actionName;
+
+    /** @var string Name of the node this action applies to */
+    protected $nodeName;
+
+    /** @var array Properties which should be preserved when serializing this action */
+    protected $preserveProperties = array();
+
+    /**
+     * NodeAction constructor.
+     *
+     * @param Node|string $node
+     */
+    public function __construct($node = null)
+    {
+        if ($node !== null) {
+            $this->nodeName = (string) $node;
+        }
+    }
+
+    /**
+     * Every NodeAction must be able to apply itself to a BusinessProcess
+     *
+     * @param BpConfig $config
+     * @return mixed
+     */
+    abstract public function applyTo(BpConfig $config);
+
+    /**
+     * Every NodeAction must be able to tell whether it can be applied to a BusinessProcess
+     *
+     * @param   BpConfig    $config
+     *
+     * @throws  ModificationError
+     *
+     * @return  bool
+     */
+    abstract public function appliesTo(BpConfig $config);
+
+    /**
+     * The name of the node this modification applies to
+     *
+     * @return string
+     */
+    public function getNodeName()
+    {
+        return $this->nodeName;
+    }
+
+    public function hasNode()
+    {
+        return $this->nodeName !== null;
+    }
+
+    /**
+     * Whether this is an instance of a given action name
+     *
+     * @param string $actionName
+     * @return bool
+     */
+    public function is($actionName)
+    {
+        return $this->getActionName() === $actionName;
+    }
+
+    /**
+     * Throw a ModificationError
+     *
+     * @param   string  $msg
+     * @param   mixed   ...
+     *
+     * @throws  ModificationError
+     */
+    protected function error($msg)
+    {
+        $error = ModificationError::create(func_get_args());
+        /** @var ModificationError $error */
+        throw $error;
+    }
+
+    /**
+     * Create an instance of a given actionName for a specific Node
+     *
+     * @param string $actionName
+     * @param string $nodeName
+     *
+     * @return static
+     */
+    public static function create($actionName, $nodeName)
+    {
+        $className = __NAMESPACE__ . '\\Node' . ucfirst($actionName) . 'Action';
+
+        return new $className($nodeName);
+    }
+
+    /**
+     * Returns a JSON-encoded serialized NodeAction
+     *
+     * @return string
+     */
+    public function serialize()
+    {
+        $object = (object) array(
+            'actionName' => $this->getActionName(),
+            'nodeName'   => $this->getNodeName(),
+            'properties' => array()
+        );
+
+        foreach ($this->preserveProperties as $key) {
+            $func = 'get' . ucfirst($key);
+            $object->properties[$key] = $this->$func();
+        }
+
+        return json_encode($object);
+    }
+
+    /**
+     * Decodes a JSON-serialized NodeAction and returns an object instance
+     *
+     * @param $string
+     * @return NodeAction
+     */
+    public static function unSerialize($string)
+    {
+        $object = json_decode($string, true);
+        $action = self::create($object['actionName'], $object['nodeName']);
+
+        foreach ($object['properties'] as $key => $val) {
+            $func = 'set' . ucfirst($key);
+            $action->$func($val);
+        }
+
+        return $action;
+    }
+
+    /**
+     * Returns the defined action name or determines such from the class name
+     *
+     * @return string The action name
+     *
+     * @throws ProgrammingError when no such class exists
+     */
+    public function getActionName()
+    {
+        if ($this->actionName === null) {
+            if (! preg_match('/\\\Node(\w+)Action$/', get_class($this), $m)) {
+                throw new ProgrammingError(
+                    '"%s" is not a NodeAction class',
+                    get_class($this)
+                );
+            }
+            $this->actionName = lcfirst($m[1]);
+        }
+
+        return $this->actionName;
+    }
+}
diff --git a/library/Businessprocess/Modification/NodeAddChildrenAction.php b/library/Businessprocess/Modification/NodeAddChildrenAction.php
new file mode 100644
index 0000000..162c380
--- /dev/null
+++ b/library/Businessprocess/Modification/NodeAddChildrenAction.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+
+class NodeAddChildrenAction extends NodeAction
+{
+    protected $children = array();
+
+    protected $preserveProperties = array('children');
+
+    /**
+     * @inheritdoc
+     */
+    public function appliesTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+
+        if (! $config->hasBpNode($name)) {
+            $this->error('Process "%s" not found', $name);
+        }
+
+        return true;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function applyTo(BpConfig $config)
+    {
+        $node = $config->getBpNode($this->getNodeName());
+
+        foreach ($this->children as $name) {
+            if (! $config->hasNode($name) || $config->getNode($name)->getBpConfig()->getName() !== $config->getName()) {
+                [$prefix, $suffix] = BpConfig::splitNodeName($name);
+                if ($suffix !== null) {
+                    if ($suffix === 'Hoststatus') {
+                        $config->createHost($prefix);
+                    } else {
+                        $config->createService($prefix, $suffix);
+                    }
+                } elseif ($name[0] === '@' && strpos($name, ':') !== false) {
+                    list($configName, $nodeName) = preg_split('~:\s*~', substr($name, 1), 2);
+                    $config->createImportedNode($configName, $nodeName);
+                }
+            }
+            $node->addChild($config->getNode($name));
+        }
+
+        return $this;
+    }
+
+    /**
+     * @param array|string $children
+     * @return $this
+     */
+    public function setChildren($children)
+    {
+        if (is_string($children)) {
+            $children = array($children);
+        }
+        $this->children = $children;
+        return $this;
+    }
+
+    /**
+     * @return array
+     */
+    public function getChildren()
+    {
+        return $this->children;
+    }
+}
diff --git a/library/Businessprocess/Modification/NodeApplyManualOrderAction.php b/library/Businessprocess/Modification/NodeApplyManualOrderAction.php
new file mode 100644
index 0000000..4ad53e0
--- /dev/null
+++ b/library/Businessprocess/Modification/NodeApplyManualOrderAction.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Common\Sort;
+
+class NodeApplyManualOrderAction extends NodeAction
+{
+    use Sort;
+
+    public function appliesTo(BpConfig $config)
+    {
+        return $config->getMetadata()->get('ManualOrder') !== 'yes';
+    }
+
+    public function applyTo(BpConfig $config)
+    {
+        $i = 0;
+        foreach ($config->getBpNodes() as $name => $node) {
+            if ($node->getDisplay() > 0) {
+                $node->setDisplay(++$i);
+            }
+
+            if ($node->hasChildren()) {
+                $node->setChildNames(array_keys(
+                    $this->setSort('display_name asc')
+                        ->sort($node->getChildren())
+                ));
+            }
+        }
+
+        $config->getMetadata()->set('ManualOrder', 'yes');
+    }
+}
diff --git a/library/Businessprocess/Modification/NodeCopyAction.php b/library/Businessprocess/Modification/NodeCopyAction.php
new file mode 100644
index 0000000..80d781b
--- /dev/null
+++ b/library/Businessprocess/Modification/NodeCopyAction.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Common\Sort;
+
+class NodeCopyAction extends NodeAction
+{
+    use Sort;
+
+    /**
+     * @param BpConfig $config
+     * @return bool
+     */
+    public function appliesTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+
+        if (! $config->hasBpNode($name)) {
+            $this->error('Process "%s" not found', $name);
+        }
+
+        if ($config->hasRootNode($name)) {
+            $this->error('A toplevel node with name "%s" already exists', $name);
+        }
+
+        return true;
+    }
+
+    /**
+     * @param BpConfig $config
+     */
+    public function applyTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+
+        $display = 1;
+        if ($config->getMetadata()->isManuallyOrdered()) {
+            $rootNodes = self::applyManualSorting($config->getRootNodes());
+            $display = end($rootNodes)->getDisplay() + 1;
+        }
+
+        $config->addRootNode($name)
+            ->getBpNode($name)
+            ->setDisplay($display);
+    }
+}
diff --git a/library/Businessprocess/Modification/NodeCreateAction.php b/library/Businessprocess/Modification/NodeCreateAction.php
new file mode 100644
index 0000000..167d3bc
--- /dev/null
+++ b/library/Businessprocess/Modification/NodeCreateAction.php
@@ -0,0 +1,129 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Node;
+
+class NodeCreateAction extends NodeAction
+{
+    /** @var string */
+    protected $parentName;
+
+    /** @var array */
+    protected $properties = array();
+
+    /** @var array */
+    protected $preserveProperties = array('parentName', 'properties');
+
+    /**
+     * @param Node $name
+     */
+    public function setParent(Node $name)
+    {
+        $this->parentName = $name->getName();
+    }
+
+    /**
+     * @return bool
+     */
+    public function hasParent()
+    {
+        return $this->parentName !== null;
+    }
+
+    /**
+     * @return string
+     */
+    public function getParentName()
+    {
+        return $this->parentName;
+    }
+
+    /**
+     * @param string $name
+     */
+    public function setParentName($name)
+    {
+        $this->parentName = $name;
+    }
+
+    /**
+     * @return array
+     */
+    public function getProperties()
+    {
+        return $this->properties;
+    }
+
+    /**
+     * @param array $properties
+     * @return $this
+     */
+    public function setProperties($properties)
+    {
+        $this->properties = (array) $properties;
+        return $this;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function appliesTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+        if ($config->hasNode($name)) {
+            $this->error('A node with name "%s" already exists', $name);
+        }
+
+        $parent = $this->getParentName();
+        if ($parent !== null && !$config->hasBpNode($parent)) {
+            $this->error('Parent process "%s" missing', $parent);
+        }
+
+        return true;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function applyTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+
+        $properties = array(
+            'name'        => $name,
+            'operator'    => $this->properties['operator'],
+        );
+        if (array_key_exists('childNames', $this->properties)) {
+            $properties['child_names'] = $this->properties['childNames'];
+        } else {
+            $properties['child_names'] = array();
+        }
+        $node = new BpNode((object) $properties);
+        $node->setBpConfig($config);
+
+        foreach ($this->getProperties() as $key => $val) {
+            if ($key === 'parentName') {
+                $config->getBpNode($val)->addChild($node);
+                continue;
+            }
+            $func = 'set' . ucfirst($key);
+            $node->$func($val);
+        }
+
+        if ($node->getDisplay() > 1) {
+            $i = $node->getDisplay();
+            foreach ($config->getRootNodes() as $_ => $rootNode) {
+                if ($rootNode->getDisplay() >= $node->getDisplay()) {
+                    $rootNode->setDisplay(++$i);
+                }
+            }
+        }
+
+        $config->addNode($name, $node);
+
+        return $node;
+    }
+}
diff --git a/library/Businessprocess/Modification/NodeModifyAction.php b/library/Businessprocess/Modification/NodeModifyAction.php
new file mode 100644
index 0000000..1b33094
--- /dev/null
+++ b/library/Businessprocess/Modification/NodeModifyAction.php
@@ -0,0 +1,121 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Node;
+
+class NodeModifyAction extends NodeAction
+{
+    protected $properties = array();
+
+    protected $formerProperties = array();
+
+    protected $preserveProperties = array('formerProperties', 'properties');
+
+    /**
+     * Set properties for a specific node
+     *
+     * Can be called multiple times
+     *
+     * @param Node $node
+     * @param array $properties
+     *
+     * @return $this
+     */
+    public function setNodeProperties(Node $node, array $properties)
+    {
+        foreach (array_keys($properties) as $key) {
+            $this->properties[$key] = $properties[$key];
+
+            if (array_key_exists($key, $this->formerProperties)) {
+                continue;
+            }
+
+            $func = 'get' . ucfirst($key);
+            $this->formerProperties[$key] = $node->$func();
+        }
+
+        return $this;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function appliesTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+
+        if (! $config->hasNode($name)) {
+            $this->error('Node "%s" not found', $name);
+        }
+
+        $node = $config->getNode($name);
+
+        foreach ($this->properties as $key => $val) {
+            $currentVal = $node->{'get' . ucfirst($key)}();
+            if ($this->formerProperties[$key] !== $currentVal) {
+                $this->error(
+                    'Property %s of node "%s" changed its value from "%s" to "%s"',
+                    $key,
+                    $name,
+                    $this->formerProperties[$key],
+                    $currentVal
+                );
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function applyTo(BpConfig $config)
+    {
+        $node = $config->getNode($this->getNodeName());
+
+        foreach ($this->properties as $key => $val) {
+            $func = 'set' . ucfirst($key);
+            $node->$func($val);
+        }
+
+        return $this;
+    }
+
+    /**
+     * @param $properties
+     * @return $this
+     */
+    public function setProperties($properties)
+    {
+        $this->properties = $properties;
+        return $this;
+    }
+
+    /**
+     * @param $properties
+     * @return $this
+     */
+    public function setFormerProperties($properties)
+    {
+        $this->formerProperties = $properties;
+        return $this;
+    }
+
+    /**
+     * @return array
+     */
+    public function getProperties()
+    {
+        return $this->properties;
+    }
+
+    /**
+     * @return array
+     */
+    public function getFormerProperties()
+    {
+        return $this->formerProperties;
+    }
+}
diff --git a/library/Businessprocess/Modification/NodeMoveAction.php b/library/Businessprocess/Modification/NodeMoveAction.php
new file mode 100644
index 0000000..4c4305d
--- /dev/null
+++ b/library/Businessprocess/Modification/NodeMoveAction.php
@@ -0,0 +1,227 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Common\Sort;
+
+class NodeMoveAction extends NodeAction
+{
+    use Sort;
+
+    /**
+     * @var string
+     */
+    protected $parent;
+
+    /**
+     * @var string
+     */
+    protected $newParent;
+
+    /**
+     * @var int
+     */
+    protected $from;
+
+    /**
+     * @var int
+     */
+    protected $to;
+
+    protected $preserveProperties = ['parent', 'newParent', 'from', 'to'];
+
+    public function setParent($name)
+    {
+        $this->parent = $name;
+    }
+
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    public function setNewParent($name)
+    {
+        $this->newParent = $name;
+    }
+
+    public function getNewParent()
+    {
+        return $this->newParent;
+    }
+
+    public function setFrom($from)
+    {
+        $this->from = (int) $from;
+    }
+
+    public function getFrom()
+    {
+        return $this->from;
+    }
+
+    public function setTo($to)
+    {
+        $this->to = (int) $to;
+    }
+
+    public function getTo()
+    {
+        return $this->to;
+    }
+
+    public function appliesTo(BpConfig $config)
+    {
+        if (! $config->getMetadata()->isManuallyOrdered()) {
+            $this->error('Process configuration is not manually ordered yet');
+        }
+
+        $name = $this->getNodeName();
+        if ($this->parent !== null) {
+            if (! $config->hasBpNode($this->parent)) {
+                $this->error('Parent process "%s" missing', $this->parent);
+            }
+            $parent = $config->getBpNode($this->parent);
+            if (! $parent->hasChild($name)) {
+                $this->error('Node "%s" not found in process "%s"', $name, $this->parent);
+            }
+
+            $nodes = $parent->getChildNames();
+            if (! isset($nodes[$this->from]) || $nodes[$this->from] !== $name) {
+                $reversedNodes = array_reverse($nodes); // The user may have reversed the sort direction
+                if (! isset($reversedNodes[$this->from]) || $reversedNodes[$this->from] !== $name) {
+                    $this->error('Node "%s" not found at position %d', $name, $this->from);
+                } else {
+                    $this->from = array_search($reversedNodes[$this->from], $nodes, true);
+                    $this->to = array_search($reversedNodes[$this->to], $nodes, true);
+                }
+            }
+        } else {
+            if (! $config->hasRootNode($name)) {
+                $this->error('Toplevel process "%s" not found', $name);
+            }
+
+            $nodes = array_keys(self::applyManualSorting($config->getRootNodes()));
+            if (! isset($nodes[$this->from]) || $nodes[$this->from] !== $name) {
+                $reversedNodes = array_reverse($nodes); // The user may have reversed the sort direction
+                if (! isset($reversedNodes[$this->from]) || $reversedNodes[$this->from] !== $name) {
+                    $this->error('Toplevel process "%s" not found at position %d', $name, $this->from);
+                } else {
+                    $this->from = array_search($reversedNodes[$this->from], $nodes, true);
+                    $this->to = array_search($reversedNodes[$this->to], $nodes, true);
+                }
+            }
+        }
+
+        if ($this->parent !== $this->newParent) {
+            if ($this->newParent !== null) {
+                if (! $config->hasBpNode($this->newParent)) {
+                    $this->error('New parent process "%s" missing', $this->newParent);
+                } elseif ($config->getBpNode($this->newParent)->hasChild($name)) {
+                    $this->error(
+                        'New parent process "%s" already has a node with the name "%s"',
+                        $this->newParent,
+                        $name
+                    );
+                }
+
+                $childrenCount = $config->getBpNode($this->newParent)->countChildren();
+                if ($this->to > 0 && $childrenCount < $this->to) {
+                    $this->error(
+                        'New parent process "%s" has not enough children. Target position %d out of range',
+                        $this->newParent,
+                        $this->to
+                    );
+                }
+            } else {
+                if ($config->hasRootNode($name)) {
+                    $this->error('Process "%s" is already a toplevel process', $name);
+                }
+
+                $childrenCount = $config->countChildren();
+                if ($this->to > 0 && $childrenCount < $this->to) {
+                    $this->error(
+                        'Process configuration has not enough toplevel processes. Target position %d out of range',
+                        $this->to
+                    );
+                }
+            }
+        }
+
+        return true;
+    }
+
+    public function applyTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+        if ($this->parent !== null) {
+            $nodes = $config->getBpNode($this->parent)->getChildren();
+        } else {
+            $nodes = self::applyManualSorting($config->getRootNodes());
+        }
+
+        $node = $nodes[$name];
+        $nodes = array_merge(
+            array_slice($nodes, 0, $this->from, true),
+            array_slice($nodes, $this->from + 1, null, true)
+        );
+        if ($this->parent === $this->newParent) {
+            $nodes = array_merge(
+                array_slice($nodes, 0, $this->to, true),
+                [$name => $node],
+                array_slice($nodes, $this->to, null, true)
+            );
+        } else {
+            if ($this->newParent !== null) {
+                $newNodes = $config->getBpNode($this->newParent)->getChildren();
+            } else {
+                $newNodes = self::applyManualSorting($config->getRootNodes());
+            }
+
+            $newNodes = array_merge(
+                array_slice($newNodes, 0, $this->to, true),
+                [$name => $node],
+                array_slice($newNodes, $this->to, null, true)
+            );
+
+            if ($this->newParent !== null) {
+                $config->getBpNode($this->newParent)->setChildNames(array_keys($newNodes));
+            } else {
+                $config->addRootNode($name);
+
+                $i = 0;
+                foreach ($newNodes as $newName => $newNode) {
+                    /** @var BpNode $newNode */
+                    if ($newNode->getDisplay() > 0 || $newName === $name) {
+                        $i += 1;
+                        if ($newNode->getDisplay() !== $i) {
+                            $newNode->setDisplay($i);
+                        }
+                    }
+                }
+            }
+        }
+
+        if ($this->parent !== null) {
+            $config->getBpNode($this->parent)->setChildNames(array_keys($nodes));
+        } else {
+            if ($this->newParent !== null) {
+                $config->removeRootNode($name);
+                $node->setDisplay(0);
+            }
+
+            $i = 0;
+            foreach ($nodes as $_ => $oldNode) {
+                /** @var BpNode $oldNode */
+                if ($oldNode->getDisplay() > 0) {
+                    $i += 1;
+                    if ($oldNode->getDisplay() !== $i) {
+                        $oldNode->setDisplay($i);
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/library/Businessprocess/Modification/NodeRemoveAction.php b/library/Businessprocess/Modification/NodeRemoveAction.php
new file mode 100644
index 0000000..6100146
--- /dev/null
+++ b/library/Businessprocess/Modification/NodeRemoveAction.php
@@ -0,0 +1,125 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Node;
+
+/**
+ * NodeRemoveAction
+ *
+ * Tracks removed nodes
+ *
+ * @package Icinga\Module\Businessprocess
+ */
+class NodeRemoveAction extends NodeAction
+{
+    protected $preserveProperties = array('parentName');
+
+    protected $parentName;
+
+    /**
+     * @param $parentName
+     * @return $this
+     */
+    public function setParentName($parentName = null)
+    {
+        $this->parentName = $parentName;
+        return $this;
+    }
+
+    /**
+     * @return mixed
+     */
+    public function getParentName()
+    {
+        return $this->parentName;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function appliesTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+        $parent = $this->getParentName();
+        if ($parent === null) {
+            if (!$config->hasNode($name)) {
+                $this->error('Toplevel process "%s" not found', $name);
+            }
+        } else {
+            if (! $config->hasNode($parent)) {
+                $this->error('Parent process "%s" missing', $parent);
+            } elseif (! $config->getBpNode($parent)->hasChild($name)) {
+                $this->error('Node "%s" not found in process "%s"', $name, $parent);
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function applyTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+        $parentName = $this->getParentName();
+        $node = $config->getNode($name);
+
+        /** @var ?BpNode $parentBpNode */
+        $parentBpNode = $parentName ? $config->getNode($parentName) : null;
+        $this->updateStateOverrides($node, $parentBpNode);
+
+        if ($parentName === null) {
+            if (! $config->hasBpNode($name)) {
+                $config->removeNode($name);
+            } else {
+                $oldDisplay = $config->getBpNode($name)->getDisplay();
+                $config->removeNode($name);
+                if ($config->getMetadata()->isManuallyOrdered()) {
+                    foreach ($config->getRootNodes() as $_ => $node) {
+                        $nodeDisplay = $node->getDisplay();
+                        if ($nodeDisplay > $oldDisplay) {
+                            $node->setDisplay($node->getDisplay() - 1);
+                        } elseif ($nodeDisplay === $oldDisplay) {
+                            break;  // Stop immediately to not make things worse ;)
+                        }
+                    }
+                }
+            }
+        } else {
+            $parent = $config->getBpNode($parentName);
+            $parent->removeChild($name);
+            $node->removeParent($parentName);
+            if (! $node->hasParents()) {
+                $config->removeNode($name);
+            }
+        }
+    }
+
+    /**
+     * Update state overrides
+     *
+     * @param Node $node
+     * @param BpNode|null $nodeParent
+     *
+     * @return void
+     */
+    private function updateStateOverrides(Node $node, ?BpNode $nodeParent): void
+    {
+        $parents = [];
+        if ($nodeParent !== null) {
+            $parents = [$nodeParent];
+        } else {
+            $parents = $node->getParents();
+        }
+
+        foreach ($parents as $parent) {
+            $parentStateOverrides = $parent->getStateOverrides();
+            unset($parentStateOverrides[$node->getName()]);
+            $parent->setStateOverrides($parentStateOverrides);
+        }
+    }
+}
diff --git a/library/Businessprocess/Modification/ProcessChanges.php b/library/Businessprocess/Modification/ProcessChanges.php
new file mode 100644
index 0000000..9257558
--- /dev/null
+++ b/library/Businessprocess/Modification/ProcessChanges.php
@@ -0,0 +1,294 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Web\Session\SessionNamespace as Session;
+
+class ProcessChanges
+{
+    /** @var NodeAction[] */
+    protected $changes = array();
+
+    /** @var Session */
+    protected $session;
+
+    /** @var BpConfig */
+    protected $config;
+
+    /** @var bool */
+    protected $hasBeenModified = false;
+
+    /** @var string Session storage key for this processes changes */
+    protected $sessionKey;
+
+    /**
+     * ProcessChanges constructor.
+     *
+     * Direct access is not allowed
+     */
+    private function __construct()
+    {
+    }
+
+    /**
+     * @param BpConfig $bp
+     * @param Session $session
+     *
+     * @return ProcessChanges
+     */
+    public static function construct(BpConfig $bp, Session $session)
+    {
+        $key = 'changes.' . $bp->getName();
+        $changes = new ProcessChanges();
+        $changes->sessionKey = $key;
+
+        if ($actions = $session->get($key)) {
+            foreach ($actions as $string) {
+                $changes->push(NodeAction::unSerialize($string));
+            }
+        }
+        $changes->session = $session;
+        $changes->config = $bp;
+
+        return $changes;
+    }
+
+    /**
+     * @param Node $node
+     * @param $properties
+     *
+     * @return $this
+     */
+    public function modifyNode(Node $node, $properties)
+    {
+        $action = new NodeModifyAction($node);
+        $action->setNodeProperties($node, $properties);
+        return $this->push($action, true);
+    }
+
+    /**
+     * @param Node $node
+     * @param $properties
+     *
+     * @return $this
+     */
+    public function addChildrenToNode($children, Node $node = null)
+    {
+        $action = new NodeAddChildrenAction($node);
+        $action->setChildren($children);
+        return $this->push($action, true);
+    }
+
+    /**
+     * @param Node|string $nodeName
+     * @param array $properties
+     * @param Node $parent
+     *
+     * @return $this
+     */
+    public function createNode($nodeName, $properties, Node $parent = null)
+    {
+        $action = new NodeCreateAction($nodeName);
+        $action->setProperties($properties);
+        if ($parent !== null) {
+            $action->setParent($parent);
+        }
+        return $this->push($action, true);
+    }
+
+    /**
+     * @param $nodeName
+     * @return $this
+     */
+    public function copyNode($nodeName)
+    {
+        $action = new NodeCopyAction($nodeName);
+        return $this->push($action, true);
+    }
+
+    /**
+     * @param Node $node
+     * @param string $parentName
+     * @return $this
+     */
+    public function deleteNode(Node $node, $parentName = null)
+    {
+        $action = new NodeRemoveAction($node);
+        if ($parentName !== null) {
+            $action->setParentName($parentName);
+        }
+
+        return $this->push($action, true);
+    }
+
+    /**
+     * Move the given node
+     *
+     * @param   Node    $node
+     * @param   int     $from
+     * @param   int     $to
+     * @param   string  $newParent
+     * @param   string  $parent
+     *
+     * @return  $this
+     */
+    public function moveNode(Node $node, $from, $to, $newParent, $parent = null)
+    {
+        $action = new NodeMoveAction($node);
+        $action->setParent($parent);
+        $action->setNewParent($newParent);
+        $action->setFrom($from);
+        $action->setTo($to);
+
+        return $this->push($action, true);
+    }
+
+    /**
+     * Apply manual order on the entire bp configuration file
+     *
+     * @return  $this
+     */
+    public function applyManualOrder()
+    {
+        return $this->push(new NodeApplyManualOrderAction(), true);
+    }
+
+    /**
+     * Add a new action to the stack
+     *
+     * @param   NodeAction  $change
+     * @param   bool        $apply
+     *
+     * @return $this
+     */
+    public function push(NodeAction $change, $apply = false)
+    {
+        if ($apply && $change->appliesTo($this->config)) {
+            $change->applyTo($this->config);
+        }
+
+        $this->changes[] = $change;
+        $this->hasBeenModified = true;
+        return $this;
+    }
+
+    /**
+     * Get all stacked actions
+     *
+     * @return NodeAction[]
+     */
+    public function getChanges()
+    {
+        return $this->changes;
+    }
+
+    /**
+     * Forget all changes and remove them from the Session
+     *
+     * @return $this
+     */
+    public function clear()
+    {
+        $this->hasBeenModified = true;
+        $this->changes = array();
+        $this->session->set($this->getSessionKey(), null);
+        return $this;
+    }
+
+    /**
+     * Whether there are no stacked changes
+     *
+     * @return bool
+     */
+    public function isEmpty()
+    {
+        return $this->count() === 0;
+    }
+
+    /**
+     * Number of stacked changes
+     *
+     * @return int
+     */
+    public function count()
+    {
+        return count($this->changes);
+    }
+
+    /**
+     * Get the first change on the stack, false if empty
+     *
+     * @return NodeAction|boolean
+     */
+    public function shift()
+    {
+        if ($this->isEmpty()) {
+            return false;
+        }
+
+        $this->hasBeenModified = true;
+        return array_shift($this->changes);
+    }
+
+    /**
+     * Get the last change on the stack, false if empty
+     *
+     * @return NodeAction|boolean
+     */
+    public function pop()
+    {
+        if ($this->isEmpty()) {
+            return false;
+        }
+
+        $this->hasBeenModified = true;
+        return array_pop($this->changes);
+    }
+
+    /**
+     * The identifier used for this processes changes in our Session storage
+     *
+     * @return string
+     */
+    protected function getSessionKey()
+    {
+        return $this->sessionKey;
+    }
+
+    protected function hasBeenModified()
+    {
+        return $this->hasBeenModified;
+    }
+
+    /**
+     * @return array
+     */
+    public function serialize()
+    {
+        $serialized = array();
+        foreach ($this->getChanges() as $change) {
+            $serialized[] = $change->serialize();
+        }
+
+        return $serialized;
+    }
+
+    /**
+     * Persist to session on destruction
+     */
+    public function __destruct()
+    {
+        if (! $this->hasBeenModified()) {
+            unset($this->session);
+            return;
+        }
+        $session = $this->session;
+        $key = $this->getSessionKey();
+        if (! $this->isEmpty()) {
+            $session->set($key, $this->serialize());
+        }
+        unset($this->session);
+    }
+}
diff --git a/library/Businessprocess/MonitoredNode.php b/library/Businessprocess/MonitoredNode.php
new file mode 100644
index 0000000..7047e5d
--- /dev/null
+++ b/library/Businessprocess/MonitoredNode.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use ipl\Html\Html;
+
+abstract class MonitoredNode extends Node
+{
+    abstract public function getUrl();
+
+    public function getLink()
+    {
+        if ($this->isMissing()) {
+            return Html::tag('a', ['href' => '#'], $this->getAlias() ?? $this->getName());
+        } else {
+            return Html::tag('a', ['href' => $this->getUrl()], $this->getAlias() ?? $this->getName());
+        }
+    }
+}
diff --git a/library/Businessprocess/Monitoring/Backend/Ido/Query/CustomVarJoinTemplateOverride.php b/library/Businessprocess/Monitoring/Backend/Ido/Query/CustomVarJoinTemplateOverride.php
new file mode 100644
index 0000000..385ca59
--- /dev/null
+++ b/library/Businessprocess/Monitoring/Backend/Ido/Query/CustomVarJoinTemplateOverride.php
@@ -0,0 +1,84 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Monitoring\Backend\Ido\Query;
+
+use Icinga\Module\Monitoring\Backend\Ido\Query\ServicecommenthistoryQuery;
+use Icinga\Module\Monitoring\Backend\Ido\Query\ServicecommentQuery;
+use Icinga\Module\Monitoring\Backend\Ido\Query\ServicedowntimeQuery;
+use Icinga\Module\Monitoring\Backend\Ido\Query\ServicedowntimestarthistoryQuery;
+use Icinga\Module\Monitoring\Backend\Ido\Query\ServiceflappingstarthistoryQuery;
+use Icinga\Module\Monitoring\Backend\Ido\Query\ServicegroupQuery;
+use Icinga\Module\Monitoring\Backend\Ido\Query\ServicenotificationQuery;
+use Icinga\Module\Monitoring\Backend\Ido\Query\ServicestatehistoryQuery;
+use Zend_Db_Select;
+
+trait CustomVarJoinTemplateOverride
+{
+    private $customVarsJoinTemplate = '%1$s = %2$s.object_id AND %2$s.varname LIKE %3$s';
+
+    /**
+     * This is a 1:1 copy of {@see IdoQuery::joinCustomvar()} to be able to
+     * adjust {@see IdoQuery::$customVarsJoinTemplate} as it's private
+     */
+    protected function joinCustomvar($customvar)
+    {
+        // TODO: This is not generic enough yet
+        list($type, $name) = $this->customvarNameToTypeName($customvar);
+        $alias = ($type === 'host' ? 'hcv_' : 'scv_') . preg_replace('~[^a-zA-Z0-9_]~', '_', $name);
+
+        // We're replacing any problematic char with an underscore, which will lead to duplicates, this avoids them
+        $from = $this->select->getPart(Zend_Db_Select::FROM);
+        for ($i = 2; array_key_exists($alias, $from); $i++) {
+            $alias = $alias . '_' . $i;
+        }
+
+        $this->customVars[strtolower($customvar)] = $alias;
+
+        if ($type === 'host') {
+            if ($this instanceof ServicecommentQuery
+                || $this instanceof ServicedowntimeQuery
+                || $this instanceof ServicecommenthistoryQuery
+                || $this instanceof ServicedowntimestarthistoryQuery
+                || $this instanceof ServiceflappingstarthistoryQuery
+                || $this instanceof ServicegroupQuery
+                || $this instanceof ServicenotificationQuery
+                || $this instanceof ServicestatehistoryQuery
+                || $this instanceof \Icinga\Module\Monitoring\Backend\Ido\Query\ServicestatusQuery
+            ) {
+                $this->requireVirtualTable('services');
+                $leftcol = 's.host_object_id';
+            } else {
+                $leftcol = 'ho.object_id';
+                if (! $this->hasJoinedTable('ho')) {
+                    $this->requireVirtualTable('hosts');
+                }
+            }
+        } else { // $type === 'service'
+            $leftcol = 'so.object_id';
+            if (! $this->hasJoinedTable('so')) {
+                $this->requireVirtualTable('services');
+            }
+        }
+
+        $mapped = $this->getMappedField($leftcol);
+        if ($mapped !== null) {
+            $this->requireColumn($leftcol);
+            $leftcol = $mapped;
+        }
+
+        $joinOn = sprintf(
+            $this->customVarsJoinTemplate,
+            $leftcol,
+            $alias,
+            $this->db->quote($name)
+        );
+
+        $this->select->joinLeft(
+            array($alias => $this->prefix . 'customvariablestatus'),
+            $joinOn,
+            array()
+        );
+
+        return $this;
+    }
+}
diff --git a/library/Businessprocess/Monitoring/Backend/Ido/Query/HostStatusQuery.php b/library/Businessprocess/Monitoring/Backend/Ido/Query/HostStatusQuery.php
new file mode 100644
index 0000000..e6ea238
--- /dev/null
+++ b/library/Businessprocess/Monitoring/Backend/Ido/Query/HostStatusQuery.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Monitoring\Backend\Ido\Query;
+
+class HostStatusQuery extends \Icinga\Module\Monitoring\Backend\Ido\Query\HoststatusQuery
+{
+    use CustomVarJoinTemplateOverride;
+}
diff --git a/library/Businessprocess/Monitoring/Backend/Ido/Query/ServiceStatusQuery.php b/library/Businessprocess/Monitoring/Backend/Ido/Query/ServiceStatusQuery.php
new file mode 100644
index 0000000..618f3a1
--- /dev/null
+++ b/library/Businessprocess/Monitoring/Backend/Ido/Query/ServiceStatusQuery.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Monitoring\Backend\Ido\Query;
+
+class ServiceStatusQuery extends \Icinga\Module\Monitoring\Backend\Ido\Query\ServicestatusQuery
+{
+    use CustomVarJoinTemplateOverride;
+}
diff --git a/library/Businessprocess/Monitoring/DataView/HostStatus.php b/library/Businessprocess/Monitoring/DataView/HostStatus.php
new file mode 100644
index 0000000..edc1814
--- /dev/null
+++ b/library/Businessprocess/Monitoring/DataView/HostStatus.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Monitoring\DataView;
+
+use Icinga\Data\ConnectionInterface;
+use Icinga\Module\Businessprocess\Monitoring\Backend\Ido\Query\HostStatusQuery;
+
+class HostStatus extends \Icinga\Module\Monitoring\DataView\Hoststatus
+{
+    public function __construct(ConnectionInterface $connection, array $columns = null)
+    {
+        parent::__construct($connection, $columns);
+
+        $this->query = new HostStatusQuery($connection->getResource(), $columns);
+    }
+}
diff --git a/library/Businessprocess/Monitoring/DataView/ServiceStatus.php b/library/Businessprocess/Monitoring/DataView/ServiceStatus.php
new file mode 100644
index 0000000..f3a9c3c
--- /dev/null
+++ b/library/Businessprocess/Monitoring/DataView/ServiceStatus.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Monitoring\DataView;
+
+use Icinga\Data\ConnectionInterface;
+use Icinga\Module\Businessprocess\Monitoring\Backend\Ido\Query\ServiceStatusQuery;
+
+class ServiceStatus extends \Icinga\Module\Monitoring\DataView\Servicestatus
+{
+    public function __construct(ConnectionInterface $connection, array $columns = null)
+    {
+        parent::__construct($connection, $columns);
+
+        $this->query = new ServiceStatusQuery($connection->getResource(), $columns);
+    }
+}
diff --git a/library/Businessprocess/MonitoringRestrictions.php b/library/Businessprocess/MonitoringRestrictions.php
new file mode 100644
index 0000000..c7d2cef
--- /dev/null
+++ b/library/Businessprocess/MonitoringRestrictions.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Icinga\Authentication\Auth;
+use Icinga\Data\Filter\Filter;
+use Icinga\Exception\ConfigurationError;
+use Icinga\Exception\QueryException;
+
+class MonitoringRestrictions
+{
+    /**
+     * Return a filter for the given restriction
+     *
+     * @param   string $name        Name of the restriction
+     *
+     * @return  Filter|null         Filter object or null if the authenticated user is not restricted
+     * @throws  ConfigurationError  If the restriction contains invalid filter columns
+     */
+    public static function getRestriction($name)
+    {
+        // Borrowed from Icinga\Module\Monitoring\Controller
+        $restriction = Filter::matchAny();
+        $restriction->setAllowedFilterColumns(array(
+            'host_name',
+            'hostgroup_name',
+            'instance_name',
+            'service_description',
+            'servicegroup_name',
+            function ($c) {
+                return preg_match('/^_(?:host|service)_/i', $c);
+            }
+        ));
+
+        foreach (Auth::getInstance()->getRestrictions($name) as $filter) {
+            if ($filter === '*') {
+                return Filter::matchAny();
+            }
+
+            try {
+                $restriction->addFilter(Filter::fromQueryString($filter));
+            } catch (QueryException $e) {
+                throw new ConfigurationError(
+                    mt(
+                        'monitoring',
+                        'Cannot apply restriction %s using the filter %s. You can only use the following columns: %s'
+                    ),
+                    $name,
+                    $filter,
+                    implode(', ', array(
+                        'instance_name',
+                        'host_name',
+                        'hostgroup_name',
+                        'service_description',
+                        'servicegroup_name',
+                        '_(host|service)_<customvar-name>'
+                    )),
+                    $e
+                );
+            }
+        }
+
+        return $restriction;
+    }
+}
diff --git a/library/Businessprocess/Node.php b/library/Businessprocess/Node.php
new file mode 100644
index 0000000..a0c07d2
--- /dev/null
+++ b/library/Businessprocess/Node.php
@@ -0,0 +1,570 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Icinga\Exception\ProgrammingError;
+use ipl\Html\Html;
+use ipl\Web\Widget\Icon;
+
+abstract class Node
+{
+    const FLAG_DOWNTIME = 1;
+    const FLAG_ACK      = 2;
+    const FLAG_MISSING  = 4;
+    const FLAG_NONE     = 8;
+    const SHIFT_FLAGS   = 4;
+
+    const ICINGA_OK          = 0;
+    const ICINGA_WARNING     = 1;
+    const ICINGA_CRITICAL    = 2;
+    const ICINGA_UNKNOWN     = 3;
+    const ICINGA_UP          = 0;
+    const ICINGA_DOWN        = 1;
+    const ICINGA_UNREACHABLE = 2;
+    const ICINGA_PENDING     = 99;
+    const NODE_EMPTY         = 128;
+
+    /** @var bool Whether to treat acknowledged hosts/services always as UP/OK */
+    protected static $ackIsOk = false;
+
+    /** @var bool Whether to treat hosts/services in downtime always as UP/OK */
+    protected static $downtimeIsOk = false;
+
+    protected $sortStateToStateMap = array(
+        4 => self::ICINGA_CRITICAL,
+        3 => self::ICINGA_UNKNOWN,
+        2 => self::ICINGA_WARNING,
+        1 => self::ICINGA_PENDING,
+        0 => self::ICINGA_OK
+    );
+
+    protected $stateToSortStateMap = array(
+        self::ICINGA_PENDING  => 1,
+        self::ICINGA_UNKNOWN  => 3,
+        self::ICINGA_CRITICAL => 4,
+        self::ICINGA_WARNING  => 2,
+        self::ICINGA_OK       => 0,
+        self::NODE_EMPTY      => 0
+    );
+
+    /** @var ?string Alias of the node */
+    protected $alias;
+
+    /**
+     * Main business process object
+     *
+     * @var BpConfig
+     */
+    protected $bp;
+
+    /**
+     * Parent nodes
+     *
+     * @var array
+     */
+    protected $parents = array();
+
+    /**
+     * Node identifier
+     *
+     * @var string
+     */
+    protected $name;
+
+    /**
+     * Node state
+     *
+     * @var ?int
+     */
+    protected $state;
+
+    /**
+     * Whether this nodes state has been acknowledged
+     *
+     * @var bool
+     */
+    protected $ack;
+
+    /**
+     * Whether this node is in a scheduled downtime
+     *
+     * @var bool
+     */
+    protected $downtime;
+
+    // obsolete
+    protected $duration;
+
+    /**
+     * This node's icon
+     *
+     * @var ?string
+     */
+    protected $icon;
+
+    /**
+     * Last state change, unix timestamp
+     *
+     * @var int
+     */
+    protected $lastStateChange;
+
+    protected $missing = false;
+
+    protected $empty = false;
+
+    protected $className = 'unknown';
+
+    protected $stateNames = array(
+        'OK',
+        'WARNING',
+        'CRITICAL',
+        'UNKNOWN',
+        99 => 'PENDING',
+        128 => 'EMPTY'
+    );
+
+    /**
+     * Set whether to treat acknowledged hosts/services always as UP/OK
+     *
+     * @param bool $ackIsOk
+     */
+    public static function setAckIsOk($ackIsOk = true)
+    {
+        self::$ackIsOk = $ackIsOk;
+    }
+
+    /**
+     * Set whether to treat hosts/services in downtime always as UP/OK
+     *
+     * @param bool $downtimeIsOk
+     */
+    public static function setDowntimeIsOk($downtimeIsOk = true)
+    {
+        self::$downtimeIsOk = $downtimeIsOk;
+    }
+
+    public function setBpConfig(BpConfig $bp)
+    {
+        $this->bp = $bp;
+        return $this;
+    }
+
+    public function getBpConfig()
+    {
+        return $this->bp;
+    }
+
+    public function setMissing($missing = true)
+    {
+        $this->missing = $missing;
+        return $this;
+    }
+
+    public function isProblem()
+    {
+        return $this->getState() > 0;
+    }
+
+    public function hasBeenChanged()
+    {
+        return false;
+    }
+
+    public function isMissing()
+    {
+        return $this->missing;
+    }
+
+    public function hasMissingChildren()
+    {
+        return count($this->getMissingChildren()) > 0;
+    }
+
+    public function getMissingChildren()
+    {
+        return array();
+    }
+
+    public function hasInfoUrl()
+    {
+        return false;
+    }
+
+    public function setState($state)
+    {
+        $this->state = (int) $state;
+        $this->missing = false;
+        return $this;
+    }
+
+    /**
+     * Forget my state
+     *
+     * @return $this
+     */
+    public function clearState()
+    {
+        $this->state = null;
+        return $this;
+    }
+
+    public function setAck($ack = true)
+    {
+        $this->ack = $ack;
+        return $this;
+    }
+
+    public function setDowntime($downtime = true)
+    {
+        $this->downtime = $downtime;
+        return $this;
+    }
+
+    public function getStateName($state = null)
+    {
+        $states = $this->enumStateNames();
+        if ($state === null) {
+            return $states[ $this->getState() ];
+        } else {
+            return $states[ $state ];
+        }
+    }
+
+    public function enumStateNames()
+    {
+        return $this->stateNames;
+    }
+
+    public function getState()
+    {
+        if ($this->state === null) {
+            throw new ProgrammingError(
+                sprintf(
+                    'Node %s is unable to retrieve it\'s state',
+                    $this->name
+                )
+            );
+        }
+
+        return $this->state;
+    }
+
+    public function getSortingState($state = null)
+    {
+        if ($state === null) {
+            $state = $this->getState();
+        }
+
+        if (self::$ackIsOk && $this->isAcknowledged()) {
+            $state = self::ICINGA_OK;
+        }
+
+        if (self::$downtimeIsOk && $this->isInDowntime()) {
+            $state = self::ICINGA_OK;
+        }
+
+        $sort = $this->stateToSortState($state);
+        $sort = ($sort << self::SHIFT_FLAGS)
+               + ($this->isInDowntime() ? self::FLAG_DOWNTIME : 0)
+               + ($this->isAcknowledged() ? self::FLAG_ACK : 0);
+        if (! ($sort & (self::FLAG_DOWNTIME | self::FLAG_ACK))) {
+            $sort |= self::FLAG_NONE;
+        }
+
+        return $sort;
+    }
+
+    public function getLastStateChange()
+    {
+        return $this->lastStateChange;
+    }
+
+    public function setLastStateChange($timestamp)
+    {
+        $this->lastStateChange = $timestamp;
+        return $this;
+    }
+
+    public function addParent(Node $parent)
+    {
+        $this->parents[] = $parent;
+        return $this;
+    }
+
+    public function getDuration()
+    {
+        return $this->duration;
+    }
+
+    public function isHandled()
+    {
+        return $this->isInDowntime() || $this->isAcknowledged();
+    }
+
+    public function isInDowntime()
+    {
+        if ($this->downtime === null) {
+            $this->getState();
+        }
+        return $this->downtime;
+    }
+
+    public function isAcknowledged()
+    {
+        if ($this->ack === null) {
+            $this->getState();
+        }
+        return $this->ack;
+    }
+
+    public function getChildren($filter = null)
+    {
+        return array();
+    }
+
+    public function countChildren($filter = null)
+    {
+        return count($this->getChildren($filter));
+    }
+
+    public function hasChildren($filter = null)
+    {
+        return $this->countChildren($filter) > 0;
+    }
+
+    public function isEmpty()
+    {
+        return $this->countChildren() === 0;
+    }
+
+    public function hasAlias()
+    {
+        return $this->alias !== null;
+    }
+
+    /**
+     * Get the alias of the node
+     *
+     * @return ?string
+     */
+    public function getAlias()
+    {
+        return $this->alias;
+    }
+
+    /**
+     * Set the alias of the node
+     *
+     * @param string $alias
+     *
+     * @return $this
+     */
+    public function setAlias($alias)
+    {
+        $this->alias = $alias;
+
+        return $this;
+    }
+
+    public function hasParents()
+    {
+        return count($this->parents) > 0;
+    }
+
+    public function hasParentName($name)
+    {
+        foreach ($this->getParents() as $parent) {
+            if ($parent->getName() === $name) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function removeParent($name)
+    {
+        $this->parents = array_filter(
+            $this->parents,
+            function (BpNode $parent) use ($name) {
+                return $parent->getName() !== $name;
+            }
+        );
+
+        return $this;
+    }
+
+    /**
+     * @return BpNode[]
+     */
+    public function getParents()
+    {
+        return $this->parents;
+    }
+
+    /**
+     * @param BpConfig $rootConfig
+     *
+     * @return array
+     */
+    public function getPaths($rootConfig = null)
+    {
+        $differentConfig = false;
+        if ($rootConfig === null) {
+            $rootConfig = $this->getBpConfig();
+        } else {
+            $differentConfig = $this->getBpConfig()->getName() !== $rootConfig->getName();
+        }
+
+        $paths = [];
+        foreach ($this->parents as $parent) {
+            foreach ($parent->getPaths($rootConfig) as $path) {
+                $path[] = $differentConfig ? $this->getIdentifier() : $this->getName();
+                $paths[] = $path;
+            }
+        }
+
+        if (! $this instanceof ImportedNode && $this->getBpConfig()->hasRootNode($this->getName())) {
+            $paths[] = [$differentConfig ? $this->getIdentifier() : $this->getName()];
+        } elseif (! $this->hasParents()) {
+            $paths[] = ['__unbound__', $differentConfig ? $this->getIdentifier() : $this->getName()];
+        }
+
+        return $paths;
+    }
+
+    protected function stateToSortState($state)
+    {
+        if (array_key_exists($state, $this->stateToSortStateMap)) {
+            return $this->stateToSortStateMap[$state];
+        }
+
+        throw new ProgrammingError(
+            'Got invalid state for node %s: %s',
+            $this->getName(),
+            var_export($state, true) . var_export($this->stateToSortStateMap, true)
+        );
+    }
+
+    protected function sortStateTostate($sortState)
+    {
+        $sortState = $sortState >> self::SHIFT_FLAGS;
+        if (array_key_exists($sortState, $this->sortStateToStateMap)) {
+            return $this->sortStateToStateMap[$sortState];
+        }
+
+        throw new ProgrammingError('Got invalid sorting state %s', $sortState);
+    }
+
+    public function getObjectClassName()
+    {
+        return $this->className;
+    }
+
+    public function getLink()
+    {
+        return Html::tag('a', ['href' => '#', 'class' => 'toggle'], new Icon('caret-down'));
+    }
+
+    public function getIcon(): Icon
+    {
+        return new Icon($this->icon ?? 'circle-exclamation');
+    }
+
+    public function operatorHtml()
+    {
+        return '&nbsp;';
+    }
+
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Get the Node operators
+     *
+     * @return array
+     */
+    public static function getOperators(): array
+    {
+        return [
+            '&' => t('AND'),
+            '|' => t('OR'),
+            '^' => t('XOR'),
+            '!' => t('NOT'),
+            '%' => t('DEGRADED'),
+            '1' => t('MIN 1'),
+            '2' => t('MIN 2'),
+            '3' => t('MIN 3'),
+            '4' => t('MIN 4'),
+            '5' => t('MIN 5'),
+            '6' => t('MIN 6'),
+            '7' => t('MIN 7'),
+            '8' => t('MIN 8'),
+            '9' => t('MIN 9'),
+        ];
+    }
+
+    public function getIdentifier()
+    {
+        return '@' . $this->getBpConfig()->getName() . ':' . $this->getName();
+    }
+
+    public function __toString()
+    {
+        return $this->getName();
+    }
+
+    public function __destruct()
+    {
+        unset($this->parents);
+    }
+
+    /**
+     * Export the node to array
+     *
+     * @param   array   $parent The node's parent. Used to construct the path to the node
+     * @param   bool    $flat   If false, children will be added to the array key children, else the array will be flat
+     *
+     * @return  array
+     */
+    public function toArray(array $parent = null, $flat = false)
+    {
+        $data = [
+            'name'  => $this->getAlias(),
+            'state' => $this->getStateName(),
+            'since' => $this->getLastStateChange(),
+            'in_downtime' => $this->isInDowntime() ? true : false
+        ];
+
+        if ($parent !== null) {
+            $data['path'] = $parent['path'] . '!' . $this->getAlias();
+        } else {
+            $data['path'] = $this->getAlias();
+        }
+
+        $children = [];
+
+        foreach ($this->getChildren() as $node) {
+            if ($flat) {
+                $children = array_merge($children, $node->toArray($data, $flat));
+            } else {
+                $children[] = $node->toArray($data, $flat);
+            }
+        }
+
+        if ($flat) {
+            $data = [$data];
+
+            if (! empty($children)) {
+                $data = array_merge($data, $children);
+            }
+        } else {
+            $data['children'] = $children;
+        }
+
+        return $data;
+    }
+}
diff --git a/library/Businessprocess/ProvidedHook/Icingadb/HostActions.php b/library/Businessprocess/ProvidedHook/Icingadb/HostActions.php
new file mode 100644
index 0000000..ac18959
--- /dev/null
+++ b/library/Businessprocess/ProvidedHook/Icingadb/HostActions.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\ProvidedHook\Icingadb;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Icingadb\Hook\HostActionsHook;
+use Icinga\Module\Icingadb\Model\Host;
+use ipl\Web\Widget\Link;
+
+class HostActions extends HostActionsHook
+{
+    public function getActionsForObject(Host $host): array
+    {
+        $label = mt('businessprocess', 'Business Impact');
+        return array(
+            new Link(
+                $label,
+                'businessprocess/node/impact?name='
+                . rawurlencode(BpConfig::joinNodeName($host->name, 'Hoststatus'))
+            )
+        );
+    }
+}
diff --git a/library/Businessprocess/ProvidedHook/Icingadb/IcingadbSupport.php b/library/Businessprocess/ProvidedHook/Icingadb/IcingadbSupport.php
new file mode 100644
index 0000000..1ff37d3
--- /dev/null
+++ b/library/Businessprocess/ProvidedHook/Icingadb/IcingadbSupport.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\ProvidedHook\Icingadb;
+
+use Icinga\Module\Icingadb\Hook\IcingadbSupportHook;
+
+class IcingadbSupport extends IcingadbSupportHook
+{
+
+}
diff --git a/library/Businessprocess/ProvidedHook/Icingadb/ServiceActions.php b/library/Businessprocess/ProvidedHook/Icingadb/ServiceActions.php
new file mode 100644
index 0000000..d416d90
--- /dev/null
+++ b/library/Businessprocess/ProvidedHook/Icingadb/ServiceActions.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\ProvidedHook\Icingadb;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Icingadb\Hook\ServiceActionsHook;
+use Icinga\Module\Icingadb\Model\Service;
+use ipl\Web\Widget\Link;
+
+class ServiceActions extends ServiceActionsHook
+{
+    public function getActionsForObject(Service $service): array
+    {
+        $label = mt('businessprocess', 'Business Impact');
+        return array(
+            new Link(
+                $label,
+                sprintf(
+                    'businessprocess/node/impact?name=%s',
+                    rawurlencode(BpConfig::joinNodeName($service->host->name, $service->name))
+                )
+            )
+        );
+    }
+}
diff --git a/library/Businessprocess/ProvidedHook/Icingadb/ServiceDetailExtension.php b/library/Businessprocess/ProvidedHook/Icingadb/ServiceDetailExtension.php
new file mode 100644
index 0000000..6d10af2
--- /dev/null
+++ b/library/Businessprocess/ProvidedHook/Icingadb/ServiceDetailExtension.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\ProvidedHook\Icingadb;
+
+use Icinga\Module\Businessprocess\Renderer\TileRenderer;
+use Icinga\Module\Businessprocess\Renderer\TreeRenderer;
+use Icinga\Module\Businessprocess\State\IcingaDbState;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+use Icinga\Module\Businessprocess\Web\Url;
+use Icinga\Module\Icingadb\Hook\ServiceDetailExtensionHook;
+use Icinga\Module\Icingadb\Model\Service;
+use ipl\Html\Html;
+use ipl\Html\HtmlDocument;
+use ipl\Html\HtmlString;
+use ipl\Html\ValidHtml;
+
+class ServiceDetailExtension extends ServiceDetailExtensionHook
+{
+    /** @var ?LegacyStorage */
+    private $storage;
+
+    /** @var string */
+    private $commandName;
+
+    protected function init()
+    {
+        $this->setSection(self::GRAPH_SECTION);
+
+        try {
+            $this->storage = LegacyStorage::getInstance();
+            $this->commandName = $this->getModule()->getConfig()->get(
+                'DetailviewExtension',
+                'checkcommand_name',
+                'icingacli-businessprocess'
+            );
+        } catch (\Exception $e) {
+            // Ignore and don't display anything
+        }
+    }
+
+    public function getHtmlForObject(Service $service): ValidHtml
+    {
+        if (! isset($this->storage)
+            || $service->checkcommand_name !== $this->commandName
+        ) {
+            return HtmlString::create('');
+        }
+
+        $bpName = $service->customvars['icingacli_businessprocess_config'] ?? null;
+        if (! $bpName) {
+            $bpName = key($this->storage->listProcessNames());
+        }
+
+        $nodeName = $service->customvars['icingacli_businessprocess_process'] ?? null;
+        if (! $nodeName) {
+            return HtmlString::create('');
+        }
+
+        $bp = $this->storage->loadProcess($bpName);
+        $node = $bp->getBpNode($nodeName);
+
+        IcingaDbState::apply($bp);
+
+        if ($service->customvars['icingaweb_businessprocess_as_tree'] ?? false) {
+            $renderer = new TreeRenderer($bp, $node);
+            $tag = 'ul';
+        } else {
+            $renderer = new TileRenderer($bp, $node);
+            $tag = 'div';
+        }
+
+        $renderer->setUrl(Url::fromPath('businessprocess/process/show?config=' . $bpName . '&node=' . $nodeName));
+        $renderer->ensureAssembled()->getFirst($tag)->setAttribute('data-base-target', '_next');
+
+        return (new HtmlDocument())->addHtml(Html::tag('h2', 'Business Process'), $renderer);
+    }
+}
diff --git a/library/Businessprocess/ProvidedHook/Monitoring/DetailviewExtension.php b/library/Businessprocess/ProvidedHook/Monitoring/DetailviewExtension.php
new file mode 100644
index 0000000..691acec
--- /dev/null
+++ b/library/Businessprocess/ProvidedHook/Monitoring/DetailviewExtension.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\ProvidedHook\Monitoring;
+
+use Icinga\Module\Businessprocess\Renderer\TileRenderer;
+use Icinga\Module\Businessprocess\Renderer\TreeRenderer;
+use Icinga\Module\Businessprocess\State\MonitoringState;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+use Icinga\Module\Businessprocess\Web\Url;
+use Icinga\Module\Monitoring\Hook\DetailviewExtensionHook;
+use Icinga\Module\Monitoring\Object\MonitoredObject;
+use Icinga\Module\Monitoring\Object\Service;
+
+class DetailviewExtension extends DetailviewExtensionHook
+{
+    /** @var ?LegacyStorage */
+    private $storage;
+
+    /** @var string */
+    private $commandName;
+
+    /**
+     * Initialize storage
+     */
+    public function init()
+    {
+        try {
+            $this->storage = LegacyStorage::getInstance();
+            $this->commandName = $this->getModule()->getConfig()->get(
+                'DetailviewExtension',
+                'checkcommand_name',
+                'icingacli-businessprocess'
+            );
+        } catch (\Exception $e) {
+            // Ignore and don't display anything
+        }
+    }
+
+    /**
+     * Returns the rendered Tree-/TileRenderer HTML
+     *
+     * @param MonitoredObject $object
+     *
+     * @return string
+     */
+    public function getHtmlForObject(MonitoredObject $object)
+    {
+        if (! isset($this->storage)
+            || ! $object instanceof Service
+            || $object->check_command !== $this->commandName
+        ) {
+            return '';
+        }
+
+        $bpName = $object->_service_icingacli_businessprocess_config;
+        if (! $bpName) {
+            $bpName = key($this->storage->listProcessNames());
+        }
+
+        $nodeName = $object->_service_icingacli_businessprocess_process;
+        if (! $nodeName) {
+            return '';
+        }
+
+        $bp = $this->storage->loadProcess($bpName);
+        $node = $bp->getBpNode($nodeName);
+
+        MonitoringState::apply($bp);
+
+        if (filter_var($object->_service_icingaweb_businessprocess_as_tree, FILTER_VALIDATE_BOOLEAN)) {
+            $renderer = new TreeRenderer($bp, $node);
+            $tag = 'ul';
+        } else {
+            $renderer = new TileRenderer($bp, $node);
+            $tag = 'div';
+        }
+
+        $renderer->setUrl(Url::fromPath('businessprocess/process/show?config=' . $bpName . '&node=' . $nodeName));
+        $renderer->ensureAssembled()->getFirst($tag)->setAttribute('data-base-target', '_next');
+
+        return '<h2>Business Process</h2>' . $renderer;
+    }
+}
diff --git a/library/Businessprocess/ProvidedHook/Monitoring/HostActions.php b/library/Businessprocess/ProvidedHook/Monitoring/HostActions.php
new file mode 100644
index 0000000..e2b9c59
--- /dev/null
+++ b/library/Businessprocess/ProvidedHook/Monitoring/HostActions.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\ProvidedHook\Monitoring;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Monitoring\Hook\HostActionsHook;
+use Icinga\Module\Monitoring\Object\Host;
+
+class HostActions extends HostActionsHook
+{
+    public function getActionsForHost(Host $host)
+    {
+        $label = mt('businessprocess', 'Business Impact');
+        return array(
+            $label => 'businessprocess/node/impact?name='
+                . rawurlencode(BpConfig::joinNodeName($host->getName(), 'Hoststatus'))
+        );
+    }
+}
diff --git a/library/Businessprocess/ProvidedHook/Monitoring/ServiceActions.php b/library/Businessprocess/ProvidedHook/Monitoring/ServiceActions.php
new file mode 100644
index 0000000..ce9fabf
--- /dev/null
+++ b/library/Businessprocess/ProvidedHook/Monitoring/ServiceActions.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\ProvidedHook\Monitoring;
+
+use Exception;
+use Icinga\Application\Config;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Monitoring\Hook\ServiceActionsHook;
+use Icinga\Module\Monitoring\Object\Service;
+use Icinga\Web\Url;
+
+class ServiceActions extends ServiceActionsHook
+{
+    public function getActionsForService(Service $service)
+    {
+        $label = mt('businessprocess', 'Business Impact');
+        return array(
+            $label => sprintf(
+                'businessprocess/node/impact?name=%s',
+                rawurlencode(BpConfig::joinNodeName($service->getHost()->getName(), $service->getName()))
+            )
+        );
+    }
+}
diff --git a/library/Businessprocess/Renderer/Breadcrumb.php b/library/Businessprocess/Renderer/Breadcrumb.php
new file mode 100644
index 0000000..4272b76
--- /dev/null
+++ b/library/Businessprocess/Renderer/Breadcrumb.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Renderer;
+
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Renderer\TileRenderer\NodeTile;
+use Icinga\Module\Businessprocess\Web\Url;
+use ipl\Html\BaseHtmlElement;
+use ipl\Html\Html;
+use ipl\Web\Widget\Icon;
+
+class Breadcrumb extends BaseHtmlElement
+{
+    protected $tag = 'ul';
+
+    protected $defaultAttributes = array(
+        'class'            => 'breadcrumb',
+        'data-base-target' => '_main'
+    );
+
+    /**
+     * @param Renderer $renderer
+     * @return static
+     */
+    public static function create(Renderer $renderer)
+    {
+        $bp = $renderer->getBusinessProcess();
+        $breadcrumb = new static;
+        $bpUrl = $renderer->getBaseUrl();
+        if ($bpUrl->getParam('action') === 'delete') {
+            $bpUrl->remove('action');
+        }
+
+        $breadcrumb->add(Html::tag('li')->add(
+            Html::tag(
+                'a',
+                [
+                    'href'  => Url::fromPath('businessprocess'),
+                    'title' => mt('businessprocess', 'Show Overview')
+                ],
+                new Icon('house')
+            )
+        ));
+        $breadcrumb->add(Html::tag('li')->add(
+            Html::tag('a', ['href' => $bpUrl], $bp->getTitle())
+        ));
+        $path = $renderer->getCurrentPath();
+
+        $parts = array();
+        while ($nodeName = array_pop($path)) {
+            /** @var BpNode $node */
+            $node = $bp->getNode($nodeName);
+            $renderer->setParentNode($node);
+            array_unshift(
+                $parts,
+                static::renderNode($node, $path, $renderer)
+            );
+        }
+        $breadcrumb->add($parts);
+
+        return $breadcrumb;
+    }
+
+    /**
+     * @param BpNode $node
+     * @param array $path
+     * @param Renderer $renderer
+     *
+     * @return NodeTile
+     */
+    protected static function renderNode(BpNode $node, $path, Renderer $renderer)
+    {
+        // TODO: something more generic than NodeTile?
+        $renderer = clone($renderer);
+        $renderer->lock()->setIsBreadcrumb();
+        $p = new NodeTile($renderer, $node, $path);
+        $p->setTag('li');
+        return $p;
+    }
+}
diff --git a/library/Businessprocess/Renderer/Renderer.php b/library/Businessprocess/Renderer/Renderer.php
new file mode 100644
index 0000000..6a5d624
--- /dev/null
+++ b/library/Businessprocess/Renderer/Renderer.php
@@ -0,0 +1,431 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Renderer;
+
+use Icinga\Exception\ProgrammingError;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Common\Sort;
+use Icinga\Module\Businessprocess\ImportedNode;
+use Icinga\Module\Businessprocess\MonitoredNode;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\Web\Url;
+use ipl\Html\BaseHtmlElement;
+use ipl\Html\Html;
+use ipl\Html\HtmlDocument;
+use ipl\Stdlib\Str;
+use ipl\Web\Widget\StateBadge;
+
+abstract class Renderer extends HtmlDocument
+{
+    use Sort;
+
+    /** @var BpConfig */
+    protected $config;
+
+    /** @var BpNode */
+    protected $parent;
+
+    /** @var bool Administrative actions are hidden unless unlocked */
+    protected $locked = true;
+
+    /** @var Url */
+    protected $url;
+
+    /** @var Url */
+    protected $baseUrl;
+
+    /** @var array */
+    protected $path = array();
+
+    /** @var bool */
+    protected $isBreadcrumb = false;
+
+    /**
+     * Renderer constructor.
+     *
+     * @param BpConfig $config
+     * @param BpNode|null $parent
+     */
+    public function __construct(BpConfig $config, BpNode $parent = null)
+    {
+        $this->config = $config;
+        $this->parent = $parent;
+    }
+
+    /**
+     * @return BpConfig
+     */
+    public function getBusinessProcess()
+    {
+        return $this->config;
+    }
+
+    /**
+     * Whether this will render all root nodes
+     *
+     * @return bool
+     */
+    public function wantsRootNodes()
+    {
+        return $this->parent === null;
+    }
+
+    /**
+     * Whether this will only render parts of given config
+     *
+     * @return bool
+     */
+    public function rendersSubNode()
+    {
+        return $this->parent !== null;
+    }
+
+    public function rendersImportedNode()
+    {
+        return $this->parent !== null && $this->parent->getBpConfig()->getName() !== $this->config->getName();
+    }
+
+    public function setParentNode(BpNode $node)
+    {
+        $this->parent = $node;
+        return $this;
+    }
+
+    /**
+     * @return BpNode
+     */
+    public function getParentNode()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * @return BpNode[]
+     */
+    public function getParentNodes()
+    {
+        if ($this->wantsRootNodes()) {
+            return array();
+        }
+
+        return $this->parent->getParents();
+    }
+
+    /**
+     * @return BpNode[]
+     */
+    public function getChildNodes()
+    {
+        if ($this->wantsRootNodes()) {
+            return $this->config->getRootNodes();
+        } else {
+            return $this->parent->getChildren();
+        }
+    }
+
+    /**
+     * Get the default sort specification
+     *
+     * @return string
+     */
+    public function getDefaultSort(): string
+    {
+        if ($this->config->getMetadata()->isManuallyOrdered()) {
+            return 'manual asc';
+        }
+
+        return 'display_name asc';
+    }
+
+    /**
+     * Get whether a custom sort order is applied
+     *
+     * @return bool
+     */
+    public function appliesCustomSorting(): bool
+    {
+        if (empty($this->getSort())) {
+            return false;
+        }
+
+        list($sortBy, $_) = Str::symmetricSplit($this->getSort(), ' ', 2);
+        list($defaultSortBy, $_) = Str::symmetricSplit($this->getDefaultSort(), ' ', 2);
+
+        return $sortBy !== $defaultSortBy;
+    }
+
+    /**
+     * @return int
+     */
+    public function countChildNodes()
+    {
+        if ($this->wantsRootNodes()) {
+            return $this->config->countChildren();
+        } else {
+            return $this->parent->countChildren();
+        }
+    }
+
+    /**
+     * @param $summary
+     * @return ?BaseHtmlElement
+     */
+    public function renderStateBadges($summary, $totalChildren)
+    {
+        $itemCount = Html::tag(
+            'span',
+            [
+                'class' => [
+                    'item-count',
+                ]
+            ],
+            sprintf(mtp('businessprocess', '%u Child', '%u Children', $totalChildren), $totalChildren)
+        );
+
+        $elements = array_filter([
+            $this->createBadgeGroup($summary, 'CRITICAL'),
+            $this->createBadgeGroup($summary, 'UNKNOWN'),
+            $this->createBadgeGroup($summary, 'WARNING'),
+            $this->createBadge($summary, 'MISSING'),
+            $this->createBadge($summary, 'PENDING')
+        ]);
+
+        if (!empty($elements)) {
+            $container = Html::tag('ul', ['class' => 'state-badges']);
+            $container->add($itemCount);
+            foreach ($elements as $element) {
+                $container->add($element);
+            }
+
+            return $container;
+        }
+        return null;
+    }
+
+    protected function createBadge($summary, $state)
+    {
+        if ($summary[$state] !== 0) {
+            return Html::tag('li', new StateBadge($summary[$state], strtolower($state)));
+        }
+
+        return null;
+    }
+
+    protected function createBadgeGroup($summary, $state)
+    {
+        $content = [];
+        if ($summary[$state] !== 0) {
+            $content[] = Html::tag('li', new StateBadge($summary[$state], strtolower($state)));
+        }
+
+        if ($summary[$state . '-HANDLED'] !== 0) {
+            $content[] = Html::tag('li', new StateBadge($summary[$state . '-HANDLED'], strtolower($state), true));
+        }
+
+        if (empty($content)) {
+            return null;
+        }
+
+        return Html::tag('li', Html::tag('ul', $content));
+    }
+
+    public function getNodeClasses(Node $node)
+    {
+        if ($node->isMissing()) {
+            $classes = array('missing');
+        } else {
+            if ($node->isEmpty() && ! $node instanceof MonitoredNode) {
+                $classes = array('empty');
+            } else {
+                $classes = [strtolower($node->getStateName(
+                    $this->parent !== null ? $this->parent->getChildState($node) : null
+                ))];
+            }
+            if ($node->hasMissingChildren()) {
+                $classes[] = 'missing-children';
+            }
+        }
+
+        if ($node->isHandled()) {
+            $classes[] = 'handled';
+        }
+
+        if ($node instanceof BpNode) {
+            $classes[] = 'process-node';
+        } else {
+            $classes[] = 'monitored-node';
+        }
+        // TODO: problem?
+        return $classes;
+    }
+
+    /**
+     * Return the url to the given node's source configuration
+     *
+     * @param   BpNode  $node
+     *
+     * @return  Url
+     */
+    public function getSourceUrl(BpNode $node)
+    {
+        if ($node instanceof ImportedNode) {
+            $name = $node->getNodeName();
+            $paths = $node->getBpConfig()->getBpNode($name)->getPaths();
+        } else {
+            $name = $node->getName();
+            $paths = $node->getPaths();
+        }
+
+        $url = clone $this->getUrl();
+        $url->setParams([
+            'config'    => $node->getBpConfig()->getName(),
+            'node'      => $name
+        ]);
+        // This depends on the fact that the node's root path is the last element in $paths
+        $url->getParams()->addValues('path', array_slice(array_pop($paths), 0, -1));
+        if (! $this->isLocked()) {
+            $url->getParams()->add('unlocked', true);
+        }
+
+        return $url;
+    }
+
+    /**
+     * @param Node $node
+     * @param $path
+     * @return string
+     */
+    public function getId(Node $node, $path)
+    {
+        return 'businessprocess-' . md5((empty($path) ? '' : implode(';', $path)) . $node->getName());
+    }
+
+    public function setPath(array $path)
+    {
+        $this->path = $path;
+        return $this;
+    }
+
+    /**
+     * @return array
+     */
+    public function getPath()
+    {
+        return $this->path;
+    }
+
+    public function getCurrentPath()
+    {
+        $path = $this->getPath();
+        if ($this->rendersSubNode()) {
+            $path[] = $this->rendersImportedNode()
+                ? $this->parent->getIdentifier()
+                : $this->parent->getName();
+        }
+
+        return $path;
+    }
+
+    /**
+     * @param Url $url
+     * @return $this
+     */
+    public function setUrl(Url $url)
+    {
+        $this->url = $url->without(array(
+            'action',
+            'deletenode',
+            'deleteparent',
+            'editnode',
+            'simulationnode',
+            'view'
+        ));
+        $this->setBaseUrl($this->url);
+        return $this;
+    }
+
+    /**
+     * @param Url $url
+     * @return $this
+     */
+    protected function setBaseUrl(Url $url)
+    {
+        $this->baseUrl = $url->without(array('node', 'path'));
+        return $this;
+    }
+
+    public function getUrl()
+    {
+        return $this->url;
+    }
+
+    /**
+     * @return Url
+     * @throws ProgrammingError
+     */
+    public function getBaseUrl()
+    {
+        if ($this->baseUrl === null) {
+            throw new ProgrammingError('Renderer has no baseUrl');
+        }
+
+        return clone($this->baseUrl);
+    }
+
+    /**
+     * @return bool
+     */
+    public function isLocked()
+    {
+        return $this->locked;
+    }
+
+    /**
+     * @return $this
+     */
+    public function lock()
+    {
+        $this->locked = true;
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function unlock()
+    {
+        $this->locked = false;
+        return $this;
+    }
+
+    /**
+     * TODO: Get rid of this
+     *
+     * @return $this
+     */
+    public function setIsBreadcrumb()
+    {
+        $this->isBreadcrumb = true;
+        return $this;
+    }
+
+    public function isBreadcrumb()
+    {
+        return $this->isBreadcrumb;
+    }
+
+    protected function createUnboundParent(BpConfig $bp)
+    {
+        return $bp->getNode('__unbound__');
+    }
+
+    /**
+     * Just to be on the safe side
+     */
+    public function __destruct()
+    {
+        unset($this->parent);
+        unset($this->config);
+    }
+}
diff --git a/library/Businessprocess/Renderer/TileRenderer.php b/library/Businessprocess/Renderer/TileRenderer.php
new file mode 100644
index 0000000..21c2f6a
--- /dev/null
+++ b/library/Businessprocess/Renderer/TileRenderer.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Renderer;
+
+use Icinga\Module\Businessprocess\ImportedNode;
+use Icinga\Module\Businessprocess\Renderer\TileRenderer\NodeTile;
+use Icinga\Module\Businessprocess\Web\Form\CsrfToken;
+use ipl\Html\Html;
+
+class TileRenderer extends Renderer
+{
+    public function assemble()
+    {
+        $bp = $this->config;
+        $nodesDiv = Html::tag(
+            'div',
+            [
+                'class'                         => ['sortable', 'tiles', $this->howMany()],
+                'data-base-target'              => '_self',
+                'data-sortable-disabled'        => $this->isLocked() || $this->appliesCustomSorting()
+                    ? 'true'
+                    : 'false',
+                'data-sortable-data-id-attr'    => 'id',
+                'data-sortable-direction'       => 'horizontal', // Otherwise movement is buggy on small lists
+                'data-csrf-token'               => CsrfToken::generate()
+            ]
+        );
+
+        if ($this->wantsRootNodes()) {
+            $nodesDiv->getAttributes()->add(
+                'data-action-url',
+                $this->getUrl()->with(['config' => $bp->getName()])->getAbsoluteUrl()
+            );
+        } else {
+            $nodeName = $this->parent instanceof ImportedNode
+                ? $this->parent->getNodeName()
+                : $this->parent->getName();
+            $nodesDiv->getAttributes()
+                ->add('data-node-name', $nodeName)
+                ->add('data-action-url', $this->getUrl()
+                    ->with([
+                        'config'    => $this->parent->getBpConfig()->getName(),
+                        'node'      => $nodeName
+                    ])
+                    ->getAbsoluteUrl());
+        }
+
+        $path = $this->getCurrentPath();
+        foreach ($this->sort($this->getChildNodes()) as $name => $node) {
+            $this->add(new NodeTile($this, $node, $path));
+        }
+
+        if ($this->wantsRootNodes()) {
+            $unbound = $this->createUnboundParent($bp);
+            if ($unbound->hasChildren()) {
+                $this->add(new NodeTile($this, $unbound));
+            }
+        }
+
+        $nodesDiv->addHtml(...$this->getContent());
+        $this->setHtmlContent($nodesDiv);
+    }
+
+    /**
+     * A CSS class giving a rough indication of how many nodes we have
+     *
+     * This is used to show larger tiles when there are few and smaller
+     * ones if there are many.
+     *
+     * @return string
+     */
+    protected function howMany()
+    {
+        $count = $this->countChildNodes();
+        $howMany = 'normal';
+
+        if ($count <= 6) {
+            $howMany = 'few';
+        } elseif ($count > 12) {
+            $howMany = 'many';
+        }
+
+        return $howMany;
+    }
+}
diff --git a/library/Businessprocess/Renderer/TileRenderer/NodeTile.php b/library/Businessprocess/Renderer/TileRenderer/NodeTile.php
new file mode 100644
index 0000000..1f32f54
--- /dev/null
+++ b/library/Businessprocess/Renderer/TileRenderer/NodeTile.php
@@ -0,0 +1,353 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Renderer\TileRenderer;
+
+use Icinga\Date\DateFormatter;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\ImportedNode;
+use Icinga\Module\Businessprocess\MonitoredNode;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\Renderer\Renderer;
+use Icinga\Web\Url;
+use ipl\Html\BaseHtmlElement;
+use ipl\Html\Html;
+use ipl\Web\Widget\Icon;
+use ipl\Web\Widget\Link;
+use ipl\Web\Widget\StateBall;
+
+class NodeTile extends BaseHtmlElement
+{
+    protected $tag = 'div';
+
+    protected $renderer;
+
+    protected $name;
+
+    protected $node;
+
+    protected $path;
+
+    /**
+     * @var BaseHtmlElement
+     */
+    private $actions;
+
+    /**
+     * NodeTile constructor.
+     * @param Renderer $renderer
+     * @param Node $node
+     * @param ?array $path
+     */
+    public function __construct(Renderer $renderer, Node $node, $path = null)
+    {
+        $this->renderer = $renderer;
+        $this->node = $node;
+        $this->path = $path;
+    }
+
+    protected function actions()
+    {
+        if ($this->actions === null) {
+            $this->addActions();
+        }
+        return $this->actions;
+    }
+
+    protected function addActions()
+    {
+        $this->actions = Html::tag(
+            'div',
+            [
+                'class' => 'actions'
+            ]
+        );
+
+        return $this->add($this->actions);
+    }
+
+    public function render()
+    {
+        $renderer = $this->renderer;
+        $node = $this->node;
+
+        $attributes = $this->getAttributes();
+        $attributes->add('class', $renderer->getNodeClasses($node));
+        $attributes->add('id', $renderer->getId($node, $this->path));
+        if (! $renderer->isLocked()) {
+            $attributes->add('data-node-name', $node->getName());
+        }
+
+        if (! $renderer->isBreadcrumb()) {
+            $this->addDetailsActions();
+
+            if (! $renderer->isLocked()) {
+                $this->addActionLinks();
+            }
+        }
+        if (! $node instanceof ImportedNode || $node->getBpConfig()->hasNode($node->getName())) {
+            $link = $this->getMainNodeLink();
+            if ($renderer->isBreadcrumb()) {
+                $state = strtolower($node->getStateName());
+                if ($node->isHandled()) {
+                    $state = $state . ' handled';
+                }
+                $link->prepend((new StateBall($state, StateBall::SIZE_MEDIUM))->addAttributes([
+                    'title' => sprintf(
+                        '%s %s',
+                        $state,
+                        DateFormatter::timeSince($node->getLastStateChange())
+                    )
+                ]));
+            }
+
+            $this->add($link);
+        } else {
+            $this->add(new Link($node->getAlias(), $this->getMainNodeUrl($node)->getAbsoluteUrl()));
+        }
+
+        if ($this->renderer->rendersSubNode()
+            && $this->renderer->getParentNode()->getChildState($node) !== $node->getState()
+        ) {
+            $this->add(
+                (new StateBall(strtolower($node->getStateName()), StateBall::SIZE_MEDIUM))
+                    ->addAttributes([
+                        'class' => 'overridden-state',
+                        'title' => sprintf(
+                            '%s',
+                            $node->getStateName()
+                        )
+                    ])
+            );
+        }
+
+        if ($node instanceof BpNode && !$renderer->isBreadcrumb()) {
+            $this->add($renderer->renderStateBadges($node->getStateSummary(), $node->countChildren()));
+        }
+
+        return parent::render();
+    }
+
+    protected function getMainNodeUrl(Node $node)
+    {
+        if ($node instanceof BpNode) {
+            return $this->makeBpUrl($node);
+        } else {
+            /** @var MonitoredNode $node */
+            return $node->getUrl();
+        }
+    }
+
+    protected function buildBaseNodeUrl(Node $node)
+    {
+        $url = $this->renderer->getBaseUrl();
+
+        $p = $url->getParams();
+        if ($node instanceof ImportedNode
+            && $this->renderer->getBusinessProcess()->getName() === $node->getBpConfig()->getName()
+        ) {
+            $p->set('node', $node->getNodeName());
+        } elseif ($this->renderer->rendersImportedNode()) {
+            $p->set('node', $node->getIdentifier());
+        } else {
+            $p->set('node', $node->getName());
+        }
+
+        if (! empty($this->path)) {
+            $p->addValues('path', $this->path);
+        }
+
+        return $url;
+    }
+
+    protected function makeBpUrl(BpNode $node)
+    {
+        return $this->buildBaseNodeUrl($node);
+    }
+
+    /**
+     * @return BaseHtmlElement
+     */
+    protected function getMainNodeLink()
+    {
+        $node = $this->node;
+        $url = $this->getMainNodeUrl($node);
+        if ($node instanceof MonitoredNode) {
+            $link = Html::tag(
+                'a',
+                ['href' => $url, 'data-base-target' => '_next'],
+                $node->getAlias() ?? $node->getName()
+            );
+        } else {
+            $link = Html::tag('a', ['href' => $url], $node->getAlias());
+        }
+
+        return $link;
+    }
+
+    protected function addDetailsActions()
+    {
+        $node = $this->node;
+        $url = $this->getMainNodeUrl($node);
+
+        if ($node instanceof BpNode) {
+            $this->actions()->add(Html::tag(
+                'a',
+                [
+                    'href'  => $url->with('mode', 'tile'),
+                    'title' => mt('businessprocess', 'Show tiles for this subtree')
+                ],
+                new Icon('grip')
+            ))->add(Html::tag(
+                'a',
+                [
+                    'href'  => $url->with('mode', 'tree'),
+                    'title' => mt('businessprocess', 'Show this subtree as a tree')
+                ],
+                new Icon('sitemap')
+            ));
+            if ($node instanceof ImportedNode) {
+                $bpConfig = $node->getBpConfig();
+                if ($bpConfig->isFaulty() || $bpConfig->hasNode($node->getName())) {
+                    $this->actions()->add(Html::tag(
+                        'a',
+                        [
+                            'data-base-target'  => '_next',
+                            'href'              => $bpConfig->isFaulty()
+                                ? $this->renderer->getBaseUrl()->setParam('config', $bpConfig->getName())
+                                : $this->renderer->getSourceUrl($node)->getAbsoluteUrl(),
+                            'title'             => mt(
+                                'businessprocess',
+                                'Show this process as part of its original configuration'
+                            )
+                        ],
+                        new Icon('share')
+                    ));
+                }
+            }
+
+            $url = $node->getInfoUrl();
+
+            if ($url !== null) {
+                $link = Html::tag(
+                    'a',
+                    [
+                        'href'  => $url,
+                        'class' => 'node-info',
+                        'title' => sprintf('%s: %s', mt('businessprocess', 'More information'), $url)
+                    ],
+                    new Icon('info')
+                );
+                if (preg_match('#^http(?:s)?://#', $url)) {
+                    $link->addAttributes(['target' => '_blank']);
+                }
+                $this->actions()->add($link);
+            }
+        } else {
+            $this->actions()->add(Html::tag(
+                'a',
+                ['href' => $node->getUrl(), 'data-base-target' => '_next'],
+                $node->getIcon()
+            ));
+        }
+
+        if ($node->isAcknowledged()) {
+            $this->actions()->add(new Icon('check', ['class' => 'handled-icon']));
+        } elseif ($node->isInDowntime()) {
+            $this->actions()->add(new Icon('plug', ['class' => 'handled-icon']));
+        }
+    }
+
+    protected function addActionLinks()
+    {
+        $parent = $this->renderer->getParentNode();
+        if ($parent !== null) {
+            $baseUrl = Url::fromPath('businessprocess/process/show', [
+                'config'    => $parent->getBpConfig()->getName(),
+                'node'      => $parent instanceof ImportedNode
+                    ? $parent->getNodeName()
+                    : $parent->getName(),
+                'unlocked'  => true
+            ]);
+        } else {
+            $baseUrl = Url::fromPath('businessprocess/process/show', [
+                'config'    => $this->node->getBpConfig()->getName(),
+                'unlocked'  => true
+            ]);
+        }
+
+        if ($this->node instanceof MonitoredNode) {
+            $this->actions()->add(Html::tag(
+                'a',
+                [
+                    'href'  => $baseUrl
+                        ->with('action', 'simulation')
+                        ->with('simulationnode', $this->node->getName()),
+                    'title' => mt(
+                        'businessprocess',
+                        'Show the business impact of this node by simulating a specific state'
+                    )
+                ],
+                new Icon('wand-magic-sparkles')
+            ));
+
+            $this->actions()->add(Html::tag(
+                'a',
+                [
+                    'href'  => $baseUrl
+                        ->with('action', 'editmonitored')
+                        ->with('editmonitorednode', $this->node->getName()),
+                    'title' => mt('businessprocess', 'Modify this monitored node')
+                ],
+                new Icon('edit')
+            ));
+        }
+
+        if ($this->renderer->getBusinessProcess()->getMetadata()->canModify()
+            && $this->node->getBpConfig()->getName() === $this->renderer->getBusinessProcess()->getName()
+            && $this->node->getName() !== '__unbound__'
+        ) {
+            if ($this->node instanceof BpNode) {
+                $this->actions()->add(Html::tag(
+                    'a',
+                    [
+                        'href'  => $baseUrl
+                            ->with('action', 'edit')
+                            ->with('editnode', $this->node->getName()),
+                        'title' => mt('businessprocess', 'Modify this business process node')
+                    ],
+                    new Icon('edit')
+                ));
+
+                $addUrl = $baseUrl->with([
+                    'node'      => $this->node->getName(),
+                    'action'    => 'add'
+                ]);
+                $addUrl->getParams()->addValues('path', $this->path);
+                $this->actions()->add(Html::tag(
+                    'a',
+                    [
+                        'href'  => $addUrl,
+                        'title' => mt('businessprocess', 'Add a new sub-node to this business process')
+                    ],
+                    new Icon('plus')
+                ));
+            }
+        }
+
+        if ($this->renderer->getBusinessProcess()->getMetadata()->canModify()) {
+            $params = array(
+                'action'     => 'delete',
+                'deletenode' => $this->node->getName(),
+            );
+
+            $this->actions()->add(Html::tag(
+                'a',
+                [
+                    'href'  => $baseUrl->with($params),
+                    'title' => mt('businessprocess', 'Delete this node')
+                ],
+                new Icon('xmark')
+            ));
+        }
+    }
+}
diff --git a/library/Businessprocess/Renderer/TreeRenderer.php b/library/Businessprocess/Renderer/TreeRenderer.php
new file mode 100644
index 0000000..097d148
--- /dev/null
+++ b/library/Businessprocess/Renderer/TreeRenderer.php
@@ -0,0 +1,380 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Renderer;
+
+use Icinga\Application\Version;
+use Icinga\Date\DateFormatter;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\ImportedNode;
+use Icinga\Module\Businessprocess\Node;
+use Icinga\Module\Businessprocess\Web\Form\CsrfToken;
+use ipl\Html\Attributes;
+use ipl\Html\BaseHtmlElement;
+use ipl\Html\Html;
+use ipl\Html\HtmlElement;
+use ipl\Web\Widget\Icon;
+use ipl\Web\Widget\StateBall;
+
+class TreeRenderer extends Renderer
+{
+    const NEW_COLLAPSIBLE_IMPLEMENTATION_SINCE = '2.11.2';
+
+    public function assemble()
+    {
+        $bp = $this->config;
+        $htmlId = $bp->getHtmlId();
+        $tree = Html::tag(
+            'ul',
+            [
+                'id'                            => $htmlId,
+                'class'                         => ['bp', 'sortable', $this->wantsRootNodes() ? '' : 'process'],
+                'data-sortable-disabled'        => $this->isLocked() || $this->appliesCustomSorting()
+                    ? 'true'
+                    : 'false',
+                'data-sortable-data-id-attr'    => 'id',
+                'data-sortable-direction'       => 'vertical',
+                'data-sortable-group'           => json_encode([
+                    'name'  => $this->wantsRootNodes() ? 'root' : $htmlId,
+                    'put'   => 'function:rowPutAllowed'
+                ]),
+                'data-sortable-invert-swap'     => 'true',
+                'data-csrf-token'               => CsrfToken::generate()
+            ],
+            $this->renderBp($bp)
+        );
+        if ($this->wantsRootNodes()) {
+            $tree->getAttributes()->add(
+                'data-action-url',
+                $this->getUrl()->with(['config' => $bp->getName()])->getAbsoluteUrl()
+            );
+
+            if (version_compare(Version::VERSION, self::NEW_COLLAPSIBLE_IMPLEMENTATION_SINCE, '<')) {
+                $tree->getAttributes()->add('data-is-root-config', true);
+            }
+        } else {
+            $nodeName = $this->parent instanceof ImportedNode
+                ? $this->parent->getNodeName()
+                : $this->parent->getName();
+            $tree->getAttributes()
+                ->add('data-node-name', $nodeName)
+                ->add('data-action-url', $this->getUrl()
+                    ->with([
+                        'config'    => $this->parent->getBpConfig()->getName(),
+                        'node'      => $nodeName
+                    ])
+                    ->getAbsoluteUrl());
+        }
+
+        $this->addHtml($tree);
+    }
+
+    /**
+     * @param BpConfig $bp
+     * @return array
+     */
+    public function renderBp(BpConfig $bp)
+    {
+        $html = [];
+        if ($this->wantsRootNodes()) {
+            $nodes = $bp->getRootNodes();
+        } else {
+            $nodes = $this->parent->getChildren();
+        }
+
+        foreach ($this->sort($nodes) as $name => $node) {
+            if ($node instanceof BpNode) {
+                $html[] = $this->renderNode($bp, $node);
+            } else {
+                $html[] = $this->renderChild($bp, $this->parent, $node);
+            }
+        }
+
+        return $html;
+    }
+
+    protected function getStateClassNames(Node $node)
+    {
+        $state = strtolower($node->getStateName());
+
+        if ($node->isMissing()) {
+            return array('missing');
+        } elseif ($state === 'ok') {
+            if ($node->hasMissingChildren()) {
+                return array('ok', 'missing-children');
+            } else {
+                return array('ok');
+            }
+        } else {
+            return array('problem', $state);
+        }
+    }
+
+    /**
+     * @param Node $node
+     * @param array $path
+     * @param BpNode $parent
+     * @return BaseHtmlElement[]
+     */
+    public function getNodeIcons(Node $node, array $path = null, BpNode $parent = null)
+    {
+        $icons = [];
+        if (empty($path) && $node instanceof BpNode) {
+            $icons[] = new Icon('sitemap');
+        } else {
+            $icons[] = $node->getIcon();
+        }
+        $state = strtolower($node->getStateName($parent !== null ? $parent->getChildState($node) : null));
+        if ($node->isHandled()) {
+            $state = $state . ' handled';
+        }
+        $icons[] = (new StateBall($state, StateBall::SIZE_MEDIUM))->addAttributes([
+            'title' => sprintf(
+                '%s %s',
+                $state,
+                DateFormatter::timeSince($node->getLastStateChange())
+            )
+        ]);
+
+        if ($node->isAcknowledged()) {
+            $icons[] = new Icon('check');
+        } elseif ($node->isInDowntime()) {
+            $icons[] = new Icon('plug');
+        }
+
+        return $icons;
+    }
+
+    public function getOverriddenState($fakeState, Node $node)
+    {
+        $overriddenState = Html::tag('div', ['class' => 'overridden-state']);
+        $overriddenState->add(
+            (new StateBall(strtolower($node->getStateName()), StateBall::SIZE_MEDIUM))
+                ->addAttributes([
+                    'title' => sprintf(
+                        '%s',
+                        $node->getStateName()
+                    )
+                ])
+        );
+
+        $overriddenState->add(new Icon('arrow-right'));
+        $overriddenState->add(
+            (new StateBall(strtolower($node->getStateName($fakeState)), StateBall::SIZE_MEDIUM))
+                ->addAttributes([
+                    'title' => sprintf(
+                        '%s',
+                        $node->getStateName($fakeState)
+                    ),
+                    'class' => 'last'
+                ])
+        );
+
+        return $overriddenState;
+    }
+
+    /**
+     * @param BpConfig $bp
+     * @param Node $node
+     * @param array $path
+     *
+     * @return string
+     */
+    public function renderNode(BpConfig $bp, Node $node, $path = array())
+    {
+        $htmlId = $this->getId($node, $path);
+        $li = Html::tag(
+            'li',
+            [
+                'id'                => $htmlId,
+                'class'             => ['bp', 'movable', $node->getObjectClassName()],
+                'data-node-name'    => $node instanceof ImportedNode
+                    ? $node->getNodeName()
+                    : $node->getName()
+            ]
+        );
+        $attributes = $li->getAttributes();
+        $attributes->add('class', $this->getStateClassNames($node));
+        if ($node->isHandled()) {
+            $attributes->add('class', 'handled');
+        }
+        if ($node instanceof BpNode) {
+            $attributes->add('class', 'operator');
+        } else {
+            $attributes->add('class', 'node');
+        }
+
+        $details = new HtmlElement('details', Attributes::create(['open' => true]));
+        $summary = new HtmlElement('summary');
+        if (version_compare(Version::VERSION, self::NEW_COLLAPSIBLE_IMPLEMENTATION_SINCE, '>=')) {
+            $details->getAttributes()->add('class', 'collapsible');
+            $summary->getAttributes()->add('class', 'collapsible-control'); // Helps JS, improves performance a bit
+        }
+
+        $summary->addHtml(
+            new Icon('caret-down', ['class' => 'collapse-icon']),
+            new Icon('caret-right', ['class' => 'expand-icon'])
+        );
+
+        $summary->add($this->getNodeIcons($node, $path));
+
+        $summary->add(Html::tag('span', null, $node->getAlias()));
+
+        if ($node instanceof BpNode) {
+            $summary->add(Html::tag('span', ['class' => 'op'], $node->operatorHtml()));
+        }
+
+        if ($node instanceof BpNode && $node->hasInfoUrl()) {
+            $summary->add($this->createInfoAction($node));
+        }
+
+        $differentConfig = $node->getBpConfig()->getName() !== $this->getBusinessProcess()->getName();
+        if (! $this->isLocked() && !$differentConfig) {
+            $summary->add($this->getActionIcons($bp, $node));
+        } elseif ($differentConfig) {
+            $summary->add($this->actionIcon(
+                'share',
+                $node->getBpConfig()->isFaulty()
+                    ? $this->getBaseUrl()->setParam('config', $node->getBpConfig()->getName())
+                    : $this->getSourceUrl($node)->addParams(['mode' => 'tree'])->getAbsoluteUrl(),
+                mt('businessprocess', 'Show this process as part of its original configuration')
+            )->addAttributes(['data-base-target' => '_next']));
+        }
+
+        $ul = Html::tag('ul', [
+            'class'                         => ['bp', 'sortable'],
+            'data-sortable-disabled'        => ($this->isLocked() || $differentConfig || $this->appliesCustomSorting())
+                ? 'true'
+                : 'false',
+            'data-sortable-invert-swap'     => 'true',
+            'data-sortable-data-id-attr'    => 'id',
+            'data-sortable-draggable'       => '.movable',
+            'data-sortable-direction'       => 'vertical',
+            'data-sortable-group'           => json_encode([
+                'name'  => $htmlId, // Unique, so that the function below is the only deciding factor
+                'put'   => 'function:rowPutAllowed'
+            ]),
+            'data-csrf-token'               => CsrfToken::generate(),
+            'data-action-url'               => $this->getUrl()
+                ->with([
+                    'config'    => $node->getBpConfig()->getName(),
+                    'node'      => $node instanceof ImportedNode
+                        ? $node->getNodeName()
+                        : $node->getName()
+                ])
+                ->getAbsoluteUrl()
+        ]);
+
+        $path[] = $differentConfig ? $node->getIdentifier() : $node->getName();
+        foreach ($this->sort($node->getChildren()) as $name => $child) {
+            if ($child instanceof BpNode) {
+                $ul->add($this->renderNode($bp, $child, $path));
+            } else {
+                $ul->add($this->renderChild($bp, $node, $child, $path));
+            }
+        }
+
+        $details->addHtml($summary);
+        $details->addHtml($ul);
+        $li->addHtml($details);
+
+        return $li;
+    }
+
+    protected function renderChild($bp, BpNode $parent, Node $node, $path = null)
+    {
+        $li = Html::tag('li', [
+            'class'             => 'movable',
+            'id'                => $this->getId($node, $path ?: []),
+            'data-node-name'    => $node->getName()
+        ]);
+
+        $li->add($this->getNodeIcons($node, $path, $parent));
+
+        $link = $node->getLink();
+        $link->getAttributes()->set('data-base-target', '_next');
+        $li->add($link);
+
+        if (($overriddenState = $parent->getChildState($node)) !== $node->getState()) {
+            $li->add($this->getOverriddenState($overriddenState, $node));
+        }
+
+        if (! $this->isLocked() && $node->getBpConfig()->getName() === $this->getBusinessProcess()->getName()) {
+            $li->add($this->getActionIcons($bp, $node));
+        }
+
+        return $li;
+    }
+
+    protected function getActionIcons(BpConfig $bp, Node $node)
+    {
+        if ($node instanceof BpNode) {
+            if ($bp->getMetadata()->canModify()) {
+                return [$this->createEditAction($bp, $node), $this->renderAddNewNode($node)];
+            } else {
+                return '';
+            }
+        } else {
+            return $this->createSimulationAction($bp, $node);
+        }
+    }
+
+    protected function createEditAction(BpConfig $bp, BpNode $node)
+    {
+        return $this->actionIcon(
+            'edit',
+            $this->getUrl()->with(array(
+                'action'   => 'edit',
+                'editnode' => $node->getName()
+            )),
+            mt('businessprocess', 'Modify this node')
+        );
+    }
+
+    protected function createSimulationAction(BpConfig $bp, Node $node)
+    {
+        return $this->actionIcon(
+            'wand-magic-sparkles',
+            $this->getUrl()->with(array(
+                //'config' => $bp->getName(),
+                'action' => 'simulation',
+                'simulationnode' => $node->getName()
+            )),
+            mt('businessprocess', 'Simulate a specific state')
+        );
+    }
+
+    protected function createInfoAction(BpNode $node)
+    {
+        $url = $node->getInfoUrl();
+        return $this->actionIcon(
+            'question',
+            $url,
+            sprintf('%s: %s', mt('businessprocess', 'More information'), $url)
+        )->addAttributes(['target' => '_blank']);
+    }
+
+    protected function actionIcon($icon, $url, $title)
+    {
+        return Html::tag(
+            'a',
+            [
+                'href'  => $url,
+                'title' => $title,
+                'class' => 'action-link'
+            ],
+            new Icon($icon)
+        );
+    }
+
+    protected function renderAddNewNode($parent)
+    {
+        return $this->actionIcon(
+            'plus',
+            $this->getUrl()
+                ->with('action', 'add')
+                ->with('node', $parent->getName()),
+            mt('businessprocess', 'Add a new business process node')
+        );
+    }
+}
diff --git a/library/Businessprocess/ServiceNode.php b/library/Businessprocess/ServiceNode.php
new file mode 100644
index 0000000..c80b984
--- /dev/null
+++ b/library/Businessprocess/ServiceNode.php
@@ -0,0 +1,95 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Icinga\Module\Businessprocess\Web\Url;
+use ipl\I18n\Translation;
+
+class ServiceNode extends MonitoredNode
+{
+    use Translation;
+
+    protected $hostname;
+
+    /** @var string Alias of the host */
+    protected $hostAlias;
+
+    protected $service;
+
+    protected $className = 'service';
+
+    protected $icon = 'gear';
+
+    public function __construct($object)
+    {
+        $this->name = BpConfig::joinNodeName($object->hostname, $object->service);
+        $this->hostname = $object->hostname;
+        $this->service  = $object->service;
+        if (isset($object->state)) {
+            $this->setState($object->state);
+        } else {
+            $this->setState(0)->setMissing();
+        }
+    }
+
+    public function getHostname()
+    {
+        return $this->hostname;
+    }
+
+    /**
+     * Get the host alias
+     *
+     * @return string
+     */
+    public function getHostAlias()
+    {
+        return $this->hostAlias;
+    }
+
+    /**
+     * Set the host alias
+     *
+     * @param string $hostAlias
+     *
+     * @return $this
+     */
+    public function setHostAlias($hostAlias)
+    {
+        $this->hostAlias = $hostAlias;
+
+        return $this;
+    }
+
+    public function getServiceDescription()
+    {
+        return $this->service;
+    }
+
+    public function getAlias()
+    {
+        if ($this->getHostAlias() === null || $this->alias === null) {
+            return null;
+        }
+
+        return sprintf(
+            $this->translate('%s on %s', '<service> on <host>'),
+            $this->alias,
+            $this->getHostAlias()
+        );
+    }
+
+    public function getUrl()
+    {
+        $params = array(
+            'host'    => $this->getHostname(),
+            'service' => $this->getServiceDescription()
+        );
+
+        if ($this->getBpConfig()->hasBackendName()) {
+            $params['backend'] = $this->getBpConfig()->getBackendName();
+        }
+
+        return Url::fromPath('businessprocess/service/show', $params);
+    }
+}
diff --git a/library/Businessprocess/Simulation.php b/library/Businessprocess/Simulation.php
new file mode 100644
index 0000000..1bc9d1d
--- /dev/null
+++ b/library/Businessprocess/Simulation.php
@@ -0,0 +1,185 @@
+<?php
+
+namespace Icinga\Module\Businessprocess;
+
+use Icinga\Exception\ProgrammingError;
+use Icinga\Web\Session\SessionNamespace;
+
+class Simulation
+{
+    const DEFAULT_SESSION_KEY = 'bp-simulations';
+
+    /**
+     * @var SessionNamespace
+     */
+    protected $session;
+
+    /**
+     * @var string
+     */
+    protected $sessionKey;
+
+    /**
+     * @var array
+     */
+    protected $simulations = array();
+
+    /**
+     * Simulation constructor.
+     * @param array $simulations
+     */
+    public function __construct(array $simulations = array())
+    {
+        $this->simulations = $simulations;
+    }
+
+    /**
+     * @param array $simulations
+     * @return static
+     */
+    public static function create(array $simulations = array())
+    {
+        return new static($simulations);
+    }
+
+    /**
+     * @param SessionNamespace $session
+     * @param null $sessionKey
+     * @return $this
+     */
+    public static function fromSession(SessionNamespace $session, $sessionKey = null)
+    {
+        return static::create()
+            ->setSessionKey($sessionKey)
+            ->persistToSession($session);
+    }
+
+    /**
+     * @param string $key
+     * @return $this
+     */
+    public function setSessionKey($key = null)
+    {
+        if ($key === null) {
+            $this->sessionKey = Simulation::DEFAULT_SESSION_KEY;
+        } else {
+            $this->sessionKey = $key;
+        }
+
+        return $this;
+    }
+
+    /**
+     * @param SessionNamespace $session
+     * @return $this
+     */
+    public function persistToSession(SessionNamespace $session)
+    {
+        $this->session = $session;
+        $this->simulations = $this->session->get($this->sessionKey, array());
+        return $this;
+    }
+
+    /**
+     * @return array
+     */
+    public function simulations()
+    {
+        return $this->simulations;
+    }
+
+    /**
+     * @param $simulations
+     * @return $this
+     */
+    protected function setSimulations($simulations)
+    {
+        $this->simulations = $simulations;
+        if ($this->session !== null) {
+            $this->session->set($this->sessionKey, $simulations);
+        }
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function clear()
+    {
+        $this->simulations = array();
+        if ($this->session !== null) {
+            $this->session->set($this->sessionKey, array());
+        }
+
+        return $this;
+    }
+
+    /**
+     * @return int
+     */
+    public function count()
+    {
+        return count($this->simulations());
+    }
+
+    /**
+     * @return bool
+     */
+    public function isEmpty()
+    {
+        return $this->count() === 0;
+    }
+
+    /**
+     * @param $node
+     * @param $properties
+     */
+    public function set($node, $properties)
+    {
+        $simulations = $this->simulations();
+        $simulations[$node] = $properties;
+        $this->setSimulations($simulations);
+    }
+
+    /**
+     * @param $name
+     * @return bool
+     */
+    public function hasNode($name)
+    {
+        $simulations = $this->simulations();
+        return array_key_exists($name, $simulations);
+    }
+
+    /**
+     * @param $name
+     * @return mixed
+     * @throws ProgrammingError
+     */
+    public function getNode($name)
+    {
+        $simulations = $this->simulations();
+        if (! array_key_exists($name, $simulations)) {
+            throw new ProgrammingError('Trying to access invalid node %s', $name);
+        }
+        return $simulations[$name];
+    }
+
+    /**
+     * @param $node
+     * @return bool
+     */
+    public function remove($node)
+    {
+        $simulations = $this->simulations();
+        if (array_key_exists($node, $simulations)) {
+            unset($simulations[$node]);
+            $this->setSimulations($simulations);
+
+            return true;
+        } else {
+            return false;
+        }
+    }
+}
diff --git a/library/Businessprocess/State/IcingaDbState.php b/library/Businessprocess/State/IcingaDbState.php
new file mode 100644
index 0000000..1a66900
--- /dev/null
+++ b/library/Businessprocess/State/IcingaDbState.php
@@ -0,0 +1,191 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\State;
+
+use Exception;
+use Icinga\Application\Benchmark;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\IcingaDbObject;
+use Icinga\Module\Businessprocess\ServiceNode;
+use Icinga\Module\Icingadb\Common\IcingaRedis;
+use Icinga\Module\Icingadb\Model\Host;
+use Icinga\Module\Icingadb\Model\Service;
+use ipl\Sql\Connection as IcingaDbConnection;
+use ipl\Stdlib\Filter;
+
+class IcingaDbState
+{
+    /** @var BpConfig */
+    protected $config;
+
+    /** @var IcingaDbConnection */
+    protected $backend;
+
+    public function __construct(BpConfig $config)
+    {
+        $this->config = $config;
+        $this->backend = IcingaDbObject::fetchDb();
+    }
+
+    public static function apply(BpConfig $config)
+    {
+        $self = new static($config);
+        $self->retrieveStatesFromBackend();
+
+        return $config;
+    }
+
+    public function retrieveStatesFromBackend()
+    {
+        $config = $this->config;
+
+        try {
+            $this->reallyRetrieveStatesFromBackend();
+        } catch (Exception $e) {
+            $config->addError(
+                $config->translate('Could not retrieve process state: %s'),
+                $e->getMessage()
+            );
+        }
+    }
+
+    public function reallyRetrieveStatesFromBackend()
+    {
+        $config = $this->config;
+
+        $involvedHostNames = $config->listInvolvedHostNames();
+        if (empty($involvedHostNames)) {
+            return $this;
+        }
+
+        Benchmark::measure(sprintf(
+            'Retrieving states for business process %s using Icinga DB backend',
+            $config->getName()
+        ));
+
+        $hosts = Host::on($this->backend)->columns([
+            'id' => 'host.id',
+            'name' => 'host.name',
+            'display_name' => 'host.display_name',
+            'hard_state' => 'host.state.hard_state',
+            'soft_state' => 'host.state.soft_state',
+            'last_state_change' => 'host.state.last_state_change',
+            'in_downtime' => 'host.state.in_downtime',
+            'is_acknowledged' => 'host.state.is_acknowledged'
+        ])->filter(Filter::equal('host.name', $involvedHostNames));
+
+        $services = Service::on($this->backend)->columns([
+            'id' => 'service.id',
+            'name' => 'service.name',
+            'display_name' => 'service.display_name',
+            'host_name' => 'host.name',
+            'host_display_name' => 'host.display_name',
+            'hard_state' => 'service.state.hard_state',
+            'soft_state' => 'service.state.soft_state',
+            'last_state_change' => 'service.state.last_state_change',
+            'in_downtime' => 'service.state.in_downtime',
+            'is_acknowledged' => 'service.state.is_acknowledged'
+        ])->filter(Filter::equal('host.name', $involvedHostNames));
+
+        // All of this is ipl-sql now, for performance reasons
+        foreach ($config->listInvolvedConfigs() as $cfg) {
+            $serviceIds = [];
+            $serviceResults = [];
+            foreach ($this->backend->yieldAll($services->assembleSelect()) as $row) {
+                $row->hex_id = bin2hex(is_resource($row->id) ? stream_get_contents($row->id) : $row->id);
+                $serviceIds[] = $row->hex_id;
+                $serviceResults[] = $row;
+            }
+
+            $redisServiceResults = iterator_to_array(IcingaRedis::fetchServiceState($serviceIds, [
+                'hard_state',
+                'soft_state',
+                'last_state_change',
+                'in_downtime',
+                'is_acknowledged'
+            ]));
+            foreach ($serviceResults as $row) {
+                if (isset($redisServiceResults[$row->hex_id])) {
+                    $row = (object) array_merge(
+                        (array) $row,
+                        $redisServiceResults[$row->hex_id]
+                    );
+                }
+
+                $this->handleDbRow($row, $cfg, 'service');
+            }
+
+            Benchmark::measure('Retrieved states for ' . count($serviceIds) .  ' services in ' . $config->getName());
+
+            $hostIds = [];
+            $hostResults = [];
+            foreach ($this->backend->yieldAll($hosts->assembleSelect()) as $row) {
+                $row->hex_id = bin2hex(is_resource($row->id) ? stream_get_contents($row->id) : $row->id);
+                $hostIds[] = $row->hex_id;
+                $hostResults[] = $row;
+            }
+
+            $redisHostResults = iterator_to_array(IcingaRedis::fetchHostState($hostIds, [
+                'hard_state',
+                'soft_state',
+                'last_state_change',
+                'in_downtime',
+                'is_acknowledged'
+            ]));
+            foreach ($hostResults as $row) {
+                if (isset($redisHostResults[$row->hex_id])) {
+                    $row = (object) array_merge(
+                        (array) $row,
+                        $redisHostResults[$row->hex_id]
+                    );
+                }
+
+                $this->handleDbRow($row, $cfg, 'host');
+            }
+
+            Benchmark::measure('Retrieved states for ' . count($hostIds) .  ' hosts in ' . $config->getName());
+        }
+
+        Benchmark::measure('Got states for business process ' . $config->getName());
+
+        return $this;
+    }
+
+    protected function handleDbRow($row, BpConfig $config, $type)
+    {
+        if ($type === 'service') {
+            $key = BpConfig::joinNodeName($row->host_name, $row->name);
+        } else {
+            $key = BpConfig::joinNodeName($row->name, 'Hoststatus');
+        }
+
+        // We fetch more states than we need, so skip unknown ones
+        if (! $config->hasNode($key)) {
+            return;
+        }
+
+        $node = $config->getNode($key);
+
+        if ($this->config->usesHardStates()) {
+            if ($row->hard_state !== null) {
+                $node->setState($row->hard_state)->setMissing(false);
+            }
+        } else {
+            if ($row->soft_state !== null) {
+                $node->setState($row->soft_state)->setMissing(false);
+            }
+        }
+
+        if ($row->last_state_change !== null) {
+            $node->setLastStateChange($row->last_state_change / 1000.0);
+        }
+
+        $node->setDowntime($row->in_downtime === 'y');
+        $node->setAck($row->is_acknowledged === 'y');
+        $node->setAlias($row->display_name);
+
+        if ($node instanceof ServiceNode) {
+            $node->setHostAlias($row->host_display_name);
+        }
+    }
+}
diff --git a/library/Businessprocess/State/MonitoringState.php b/library/Businessprocess/State/MonitoringState.php
new file mode 100644
index 0000000..b6a2391
--- /dev/null
+++ b/library/Businessprocess/State/MonitoringState.php
@@ -0,0 +1,151 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\State;
+
+use Exception;
+use Icinga\Application\Benchmark;
+use Icinga\Data\Filter\Filter;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\ServiceNode;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+
+class MonitoringState
+{
+    /** @var BpConfig */
+    protected $config;
+
+    /** @var MonitoringBackend */
+    protected $backend;
+
+    private function __construct(BpConfig $config)
+    {
+        $this->config = $config;
+        $this->backend = $config->getBackend();
+    }
+
+    public static function apply(BpConfig $config)
+    {
+        $self = new static($config);
+        $self->retrieveStatesFromBackend();
+        return $config;
+    }
+
+    public function retrieveStatesFromBackend()
+    {
+        $config = $this->config;
+
+        try {
+            $this->reallyRetrieveStatesFromBackend();
+        } catch (Exception $e) {
+            $config->addError(
+                $config->translate('Could not retrieve process state: %s'),
+                $e->getMessage()
+            );
+        }
+    }
+
+    public function reallyRetrieveStatesFromBackend()
+    {
+        $config = $this->config;
+
+        Benchmark::measure('Retrieving states for business process ' . $config->getName());
+        $backend = $this->backend;
+
+        if ($config->usesHardStates()) {
+            $hostStateColumn          = 'host_hard_state';
+            $hostStateChangeColumn    = 'host_last_hard_state_change';
+            $serviceStateColumn       = 'service_hard_state';
+            $serviceStateChangeColumn = 'service_last_hard_state_change';
+        } else {
+            $hostStateColumn          = 'host_state';
+            $hostStateChangeColumn    = 'host_last_state_change';
+            $serviceStateColumn       = 'service_state';
+            $serviceStateChangeColumn = 'service_last_state_change';
+        }
+
+        $hosts = $config->listInvolvedHostNames();
+        if (empty($hosts)) {
+            return $this;
+        }
+
+        $hostFilter = Filter::expression('host_name', '=', $hosts);
+
+        $hostStatus = $backend->select()->from('hostStatus', array(
+            'hostname'          => 'host_name',
+            'last_state_change' => $hostStateChangeColumn,
+            'in_downtime'       => 'host_in_downtime',
+            'ack'               => 'host_acknowledged',
+            'state'             => $hostStateColumn,
+            'display_name'      => 'host_display_name'
+        ))->applyFilter($hostFilter)->getQuery()->fetchAll();
+
+        Benchmark::measure('Retrieved states for ' . count($hostStatus) . ' hosts in ' . $config->getName());
+
+        // NOTE: we intentionally filter by host_name ONLY
+        // Tests with host IN ... AND service IN shows longer query times
+        // while retrieving 1635 (in 5ms) vs. 1388 (in ~430ms) services
+        $serviceStatus = $backend->select()->from('serviceStatus', array(
+            'hostname'          => 'host_name',
+            'service'           => 'service_description',
+            'last_state_change' => $serviceStateChangeColumn,
+            'in_downtime'       => 'service_in_downtime',
+            'ack'               => 'service_acknowledged',
+            'state'             => $serviceStateColumn,
+            'display_name'      => 'service_display_name',
+            'host_display_name' => 'host_display_name'
+        ))->applyFilter($hostFilter)->getQuery()->fetchAll();
+
+        Benchmark::measure('Retrieved states for ' . count($serviceStatus) . ' services in ' . $config->getName());
+
+        $configs = $config->listInvolvedConfigs();
+        foreach ($configs as $cfg) {
+            foreach ($serviceStatus as $row) {
+                $this->handleDbRow($row, $cfg);
+            }
+            foreach ($hostStatus as $row) {
+                $this->handleDbRow($row, $cfg);
+            }
+        }
+
+        // TODO: Union, single query?
+        Benchmark::measure('Got states for business process ' . $config->getName());
+
+        return $this;
+    }
+
+    protected function handleDbRow($row, BpConfig $config)
+    {
+        $key = BpConfig::joinNodeName(
+            $row->hostname,
+            property_exists($row, 'service')
+                ? $row->service
+                : 'Hoststatus'
+        );
+
+        // We fetch more states than we need, so skip unknown ones
+        if (! $config->hasNode($key)) {
+            return;
+        }
+
+        $node = $config->getNode($key);
+
+        if ($row->state !== null) {
+            $node->setState($row->state)->setMissing(false);
+        }
+        if ($row->last_state_change !== null) {
+            $node->setLastStateChange($row->last_state_change);
+        }
+        if ((int) $row->in_downtime === 1) {
+            $node->setDowntime(true);
+        }
+        if ((int) $row->ack === 1) {
+            $node->setAck(true);
+        }
+
+        $node->setAlias($row->display_name);
+
+        if ($node instanceof ServiceNode) {
+            $node->setHostAlias($row->host_display_name);
+        }
+    }
+}
diff --git a/library/Businessprocess/Storage/ConfigDiff.php b/library/Businessprocess/Storage/ConfigDiff.php
new file mode 100644
index 0000000..133cfb7
--- /dev/null
+++ b/library/Businessprocess/Storage/ConfigDiff.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Storage;
+
+use ipl\Html\ValidHtml;
+use Jfcherng\Diff\Differ;
+use Jfcherng\Diff\Factory\RendererFactory;
+
+class ConfigDiff implements ValidHtml
+{
+    protected $a;
+
+    protected $b;
+
+    protected $diff;
+    protected $opcodes;
+
+    protected function __construct($a, $b)
+    {
+        if (empty($a)) {
+            $this->a = array();
+        } else {
+            $this->a = explode("\n", (string) $a);
+        }
+
+        if (empty($b)) {
+            $this->b = array();
+        } else {
+            $this->b = explode("\n", (string) $b);
+        }
+
+        $options = array(
+            'context' => 5,
+            // 'ignoreWhitespace' => true,
+            // 'ignoreCase' => true,
+        );
+        $this->diff = new Differ($this->a, $this->b, $options);
+    }
+
+    /**
+     * @return string
+     */
+    public function render()
+    {
+        return $this->renderHtmlSideBySide();
+    }
+
+    public function renderHtmlSideBySide()
+    {
+        $renderer = RendererFactory::make('SideBySide');
+        return $renderer->render($this->diff);
+    }
+
+    public function renderHtmlInline()
+    {
+        $renderer = RendererFactory::make('Inline');
+        return $renderer->render($this->diff);
+    }
+
+    public function renderTextContext()
+    {
+        $renderer = RendererFactory::make('Context');
+        return $renderer->render($this->diff);
+    }
+
+    public function renderTextUnified()
+    {
+        $renderer = RendererFactory::make('Unified');
+        return $renderer->render($this->diff);
+    }
+
+    public static function create($a, $b)
+    {
+        $diff = new static($a, $b);
+        return $diff;
+    }
+}
diff --git a/library/Businessprocess/Storage/LegacyConfigParser.php b/library/Businessprocess/Storage/LegacyConfigParser.php
new file mode 100644
index 0000000..754c7ff
--- /dev/null
+++ b/library/Businessprocess/Storage/LegacyConfigParser.php
@@ -0,0 +1,413 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Storage;
+
+use Icinga\Application\Benchmark;
+use Icinga\Exception\ConfigurationError;
+use Icinga\Exception\SystemPermissionException;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Metadata;
+
+class LegacyConfigParser
+{
+    /** @var ?string */
+    protected static $prevKey;
+
+    /** @var int */
+    protected $currentLineNumber;
+
+    /** @var string */
+    protected $currentFilename;
+
+    protected $name;
+
+    /** @var BpConfig */
+    protected $config;
+
+    /** @var array */
+    protected $missingNodes = [];
+
+    /**
+     * LegacyConfigParser constructor
+     *
+     * @param $name
+     */
+    private function __construct($name)
+    {
+        $this->name = $name;
+        $this->config = new BpConfig();
+        $this->config->setName($name);
+    }
+
+    /**
+     * @return BpConfig
+     */
+    public function getParsedConfig()
+    {
+        return $this->config;
+    }
+
+    /**
+     * @param $name
+     * @param $filename
+     *
+     * @return BpConfig
+     */
+    public static function parseFile($name, $filename)
+    {
+        Benchmark::measure('Loading business process ' . $name);
+        $parser = new static($name);
+        $parser->reallyParseFile($filename);
+        Benchmark::measure('Business process ' . $name . ' loaded');
+        return $parser->getParsedConfig();
+    }
+
+    /**
+     * @param $name
+     * @param $string
+     *
+     * @return BpConfig
+     */
+    public static function parseString($name, $string)
+    {
+        Benchmark::measure('Loading BP config from file: ' . $name);
+        $parser = new static($name);
+
+        $config = $parser->getParsedConfig();
+        $config->setMetadata(
+            static::readMetadataFromString($name, $string)
+        );
+
+        foreach (preg_split('/\r?\n/', $string) as $line) {
+            $parser->parseLine($line);
+        }
+
+        $parser->resolveMissingNodes();
+
+        Benchmark::measure('Business process ' . $name . ' loaded');
+        return $config;
+    }
+
+    protected function reallyParseFile($filename)
+    {
+        $file = $this->currentFilename = $filename;
+        $fh = @fopen($file, 'r');
+        if (! $fh) {
+            throw new SystemPermissionException('Could not open "%s"', $filename);
+        }
+
+        $config = $this->config;
+        $config->setMetadata(
+            $this::readMetadataFromFileHeader($config->getName(), $filename)
+        );
+
+        $this->currentLineNumber = 0;
+        while ($line = fgets($fh)) {
+            $this->parseLine($line);
+        }
+
+        $this->resolveMissingNodes();
+
+        fclose($fh);
+        unset($this->currentLineNumber);
+        unset($this->currentFilename);
+    }
+
+    /**
+     * Resolve previously missed business process nodes
+     *
+     * @throws ConfigurationError   In case a referenced process does not exist
+     */
+    protected function resolveMissingNodes()
+    {
+        foreach ($this->missingNodes as $name => $parents) {
+            foreach ($parents as $parent) {
+                /** @var BpNode $parent */
+                $parent->addChild($this->config->getNode($name));
+            }
+        }
+    }
+
+    public static function readMetadataFromFileHeader($name, $filename)
+    {
+        $metadata = new Metadata($name);
+        $fh = fopen($filename, 'r');
+        $cnt = 0;
+        static::$prevKey = null;
+        while ($cnt < 15 && false !== ($line = fgets($fh))) {
+            $cnt++;
+            static::parseHeaderLine($line, $metadata);
+        }
+
+        fclose($fh);
+        return $metadata;
+    }
+
+    public static function readMetadataFromString($name, &$string)
+    {
+        $metadata = new Metadata($name);
+
+        $lines = preg_split('/\r?\n/', substr($string, 0, 8092));
+        static::$prevKey = null;
+
+        foreach ($lines as $line) {
+            static::parseHeaderLine($line, $metadata);
+        }
+
+        return $metadata;
+    }
+
+    protected function splitCommaSeparated($string)
+    {
+        return preg_split('/\s*,\s*/', $string, -1, PREG_SPLIT_NO_EMPTY);
+    }
+
+    protected function readHeaderString($string, Metadata $metadata)
+    {
+        foreach (preg_split('/\r?\n/', $string) as $line) {
+            $this->parseHeaderLine($line, $metadata);
+        }
+
+        return $metadata;
+    }
+
+    /**
+     * @return array
+     */
+    protected function emptyHeader()
+    {
+        return array(
+            'Title'         => null,
+            'Description'   => null,
+            'Owner'         => null,
+            'AllowedUsers'  => null,
+            'AllowedGroups' => null,
+            'AllowedRoles'  => null,
+            'Backend'       => null,
+            'Statetype'     => 'soft',
+            'SLAHosts'      => null
+        );
+    }
+
+    /**
+     * @param $line
+     * @param Metadata $metadata
+     */
+    protected static function parseHeaderLine($line, Metadata $metadata)
+    {
+        if (empty($line)) {
+            return;
+        }
+
+        if (preg_match('/^\s*#\s+(.+?)\s*:\s*(.+)$/', trim($line), $m)) {
+            if ($metadata->hasKey($m[1])) {
+                static::$prevKey = $m[1];
+                $metadata->set($m[1], $m[2]);
+            }
+        } elseif ($line[0] === '#') {
+            $line = ltrim($line, "#");
+
+            // Check if the line is from the multi-line comment and parse it accordingly
+            if (trim($line) !== '' && ! preg_match('/^\s*(.+?)\s*:$/', trim($line), $m) && static::$prevKey) {
+                $line = trim(
+                    substr(
+                        $line,
+                        strlen(sprintf("%-15s :", static::$prevKey)) + 2
+                    ),
+                    "\n\r"
+                );
+
+                $description = $metadata->get(static::$prevKey) . "\n" . $line;
+                $metadata->set(static::$prevKey, $description);
+            }
+        }
+    }
+
+    /**
+     * @param $line
+     * @param BpConfig $bp
+     */
+    protected function parseDisplay(&$line, BpConfig $bp)
+    {
+        list($display, $name, $desc) = preg_split('~\s*(?<!\\\\);\s*~', substr($line, 8), 3);
+        $bp->getBpNode($name)->setAlias($desc)->setDisplay($display);
+        if ($display > 0) {
+            $bp->addRootNode($name);
+        }
+    }
+
+    protected function parseInfoUrl(&$line, BpConfig $bp)
+    {
+        list($name, $url) = preg_split('~\s*(?<!\\\\);\s*~', substr($line, 9), 2);
+        $bp->getBpNode($name)->setInfoUrl($url);
+    }
+
+    protected function parseStateOverrides(&$line, BpConfig $bp)
+    {
+        // state_overrides <bp-node>!<child>|n-n[,n-n]!<child>|n-n[,n-n]
+        $segments = preg_split('~\s*!\s*~', substr($line, 16));
+        /** @var BpNode $node */
+        $node = $bp->getNode(array_shift($segments));
+        foreach ($segments as $overrideDef) {
+            list($childName, $overrides) = preg_split('~\s*\|\s*~', $overrideDef, 2);
+
+            $stateOverrides = [];
+            foreach (preg_split('~\s*,\s*~', $overrides) as $override) {
+                list($from, $to) = preg_split('~\s*-\s*~', $override, 2);
+                $stateOverrides[(int) $from] = (int) $to;
+            }
+
+            $node->setStateOverrides($stateOverrides, $childName);
+        }
+    }
+
+    protected function parseExtraLine(&$line, $typeLength, BpConfig $bp)
+    {
+        $type = substr($line, 0, $typeLength);
+        if (substr($type, 0, 7) === 'display') {
+            $this->parseDisplay($line, $bp);
+            return true;
+        }
+
+        switch ($type) {
+            case 'external_info':
+            case 'extra_info':
+                break;
+            case 'info_url':
+                $this->parseInfoUrl($line, $bp);
+                break;
+            case 'state_overrides':
+                $this->parseStateOverrides($line, $bp);
+                break;
+            case 'template':
+                // compat, ignoring for now
+                break;
+            default:
+                return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Parses a single line
+     *
+     * Adds eventual new knowledge to the given Business Process config
+     *
+     * @param $line
+     *
+     * @throws ConfigurationError
+     */
+    protected function parseLine(&$line)
+    {
+        $bp = $this->config;
+        $line = trim($line);
+
+        $this->currentLineNumber++;
+
+        // Skip empty or comment-only lines
+        if (empty($line) || $line[0] === '#') {
+            return;
+        }
+
+        // Space found in the first 16 cols? Might be a line with extra information
+        $pos = strpos($line, ' ');
+        if ($pos !== false && $pos < 16) {
+            if ($this->parseExtraLine($line, $pos, $bp)) {
+                return;
+            }
+        }
+
+        if (strpos($line, '=') === false) {
+            $this->parseError('Got invalid line');
+        }
+
+        list($name, $value) = preg_split('~\s*=\s*~', $line, 2);
+
+        $op = '&';
+        if (preg_match_all('~(?<!\\\\)([\|\+&\!\%\^])~', $value, $m)) {
+            $op = implode('', $m[1]);
+            for ($i = 1; $i < strlen($op); $i++) {
+                if ($op[$i] !== $op[$i - 1]) {
+                    $this->parseError('Mixing operators is not allowed');
+                }
+            }
+        }
+        $op = $op[0];
+        $op_name = $op;
+
+        if ($op === '+') {
+            if (! preg_match('~^(\d+)(?::(\d+))?\s*of:\s*(.+?)$~', $value, $m)) {
+                $this->parseError('syntax: <var> = <num> of: <var1> + <var2> [+ <varn>]*');
+            }
+            $op_name = $m[1];
+            // New feature: $minWarn = $m[2];
+            $value   = $m[3];
+        }
+
+        $node = new BpNode((object) array(
+            'name'        => $name,
+            'operator'    => $op_name,
+            'child_names' => []
+        ));
+        $node->setBpConfig($bp);
+
+        $cmps = preg_split('~\s*(?<!\\\\)\\' . $op . '\s*~', $value, -1, PREG_SPLIT_NO_EMPTY);
+        foreach ($cmps as $val) {
+            $val = preg_replace('~(\\\\([\|\+&\!\%\^]))~', '$2', $val);
+            if (preg_match('~(?<!\\\\);~', $val)) {
+                if ($bp->hasNode($val)) {
+                    $node->addChild($bp->getNode($val));
+                } else {
+                    list($host, $service) = preg_split('~(?<!\\\\);~', $val, 2);
+                    if ($service === 'Hoststatus') {
+                        $node->addChild($bp->createHost(str_replace('\\;', ';', $host)));
+                    } else {
+                        $node->addChild($bp->createService(str_replace('\\;', ';', $host), $service));
+                    }
+                }
+            } elseif ($val[0] === '@') {
+                if (strpos($val, ':') === false) {
+                    throw new ConfigurationError(
+                        "I'm unable to import full external configs, a node needs to be provided for '%s'",
+                        $val
+                    );
+                } else {
+                    list($config, $nodeName) = preg_split('~:\s*~', substr($val, 1), 2);
+                    $node->addChild($bp->createImportedNode($config, $nodeName));
+                }
+            } elseif ($bp->hasNode($val)) {
+                $node->addChild($bp->getNode($val));
+            } else {
+                $this->missingNodes[$val][] = $node;
+            }
+        }
+
+        $bp->addNode($name, $node);
+    }
+
+    /**
+     * @return string
+     */
+    public function getFilename()
+    {
+        return $this->currentFilename ?: '[given string]';
+    }
+
+    /**
+     * @param $msg
+     * @throws ConfigurationError
+     */
+    protected function parseError($msg)
+    {
+        throw new ConfigurationError(
+            sprintf(
+                'Parse error on %s:%s: %s',
+                $this->getFilename(),
+                $this->currentLineNumber,
+                $msg
+            )
+        );
+    }
+}
diff --git a/library/Businessprocess/Storage/LegacyConfigRenderer.php b/library/Businessprocess/Storage/LegacyConfigRenderer.php
new file mode 100644
index 0000000..1f7e23b
--- /dev/null
+++ b/library/Businessprocess/Storage/LegacyConfigRenderer.php
@@ -0,0 +1,268 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Storage;
+
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\ImportedNode;
+
+class LegacyConfigRenderer
+{
+    /** @var array */
+    protected $renderedNodes;
+
+    protected $config;
+
+    /**
+     * LecagyConfigRenderer constructor
+     *
+     * @param BpConfig $config
+     */
+    public function __construct(BpConfig $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * @return string
+     */
+    public function render()
+    {
+        return $this->renderHeader() . $this->renderNodes();
+    }
+
+    /**
+     * @param BpConfig $config
+     * @return mixed
+     */
+    public static function renderConfig(BpConfig $config)
+    {
+        $renderer = new static($config);
+        return $renderer->render();
+    }
+
+    /**
+     * @return string
+     */
+    public function renderHeader()
+    {
+        $str = "### Business Process Config File ###\n#\n";
+
+        $meta = $this->config->getMetadata();
+        foreach ($meta->getProperties() as $key => $value) {
+            if ($value === null) {
+                continue;
+            }
+
+            $lineNum = 1;
+            $spaces = str_repeat(' ', strlen(sprintf("%-15s :", $key)));
+
+            foreach (preg_split('/\r?\n/', $value) as $line) {
+                if ($lineNum === 1) {
+                    $str .= sprintf("# %-15s : %s\n", $key, $line);
+                } else {
+                    $str .= sprintf("# %s %s\n", $spaces, $line);
+                }
+
+                $lineNum++;
+            }
+        }
+
+        $str .= "#\n###################################\n\n";
+
+        return $str;
+    }
+
+    /**
+     * @return string
+     */
+    public function renderNodes()
+    {
+        $this->renderedNodes = array();
+
+        $config = $this->config;
+        $str = '';
+
+        foreach ($config->getRootNodes() as $node) {
+            $str .= $this->requireRenderedBpNode($node);
+        }
+
+        foreach ($config->getUnboundNodes() as $name => $node) {
+            $str .= $this->requireRenderedBpNode($node);
+        }
+
+        return $str . "\n";
+    }
+
+    /**
+     * Rendered node definition, empty string if already rendered
+     *
+     * @param BpNode $node
+     *
+     * @return string
+     */
+    protected function requireRenderedBpNode(BpNode $node)
+    {
+        $name = $node->getName();
+
+        if (array_key_exists($name, $this->renderedNodes)) {
+            return '';
+        } else {
+            $this->renderedNodes[$name] = true;
+            return $this->renderBpNode($node);
+        }
+    }
+
+    /**
+     * @param BpNode $node
+     * @return string
+     */
+    protected function renderBpNode(BpNode $node)
+    {
+        $name = $node->getName();
+        // Doing this before rendering children allows us to store loops
+        $cfg = '';
+
+        foreach ($node->getChildBpNodes() as $name => $child) {
+            if ($child instanceof ImportedNode) {
+                continue;
+            }
+
+            $cfg .= $this->requireRenderedBpNode($child) . "\n";
+        }
+
+        $cfg .= static::renderSingleBpNode($node);
+
+        return $cfg;
+    }
+
+    /**
+     * @param BpNode $node
+     * @return string
+     */
+    public static function renderEqualSign(BpNode $node)
+    {
+        $op = $node->getOperator();
+        if (is_numeric($op)) {
+            return '= ' . $op . ' of:';
+        } else {
+            return '=';
+        }
+    }
+
+    /**
+     * @param BpNode $node
+     * @return string
+     */
+    public static function renderOperator(BpNode $node)
+    {
+        $op = $node->getOperator();
+        if (is_numeric($op)) {
+            return '+';
+        } else {
+            return $op;
+        }
+    }
+
+    /**
+     * @param BpNode $node
+     * @return string
+     */
+    public static function renderSingleBpNode(BpNode $node)
+    {
+        return static::renderExpression($node)
+            . static::renderStateOverrides($node)
+            . static::renderDisplay($node)
+            . static::renderInfoUrl($node);
+    }
+
+    /**
+     * @param BpNode $node
+     * @return string
+     */
+    public static function renderExpression(BpNode $node)
+    {
+        return sprintf(
+            "%s %s %s\n",
+            $node->getName(),
+            static::renderEqualSign($node),
+            static::renderChildNames($node)
+        );
+    }
+
+    /**
+     * @param BpNode $node
+     * @return string
+     */
+    public static function renderChildNames(BpNode $node)
+    {
+        $op = static::renderOperator($node);
+        $children = $node->getChildNames();
+        $str = implode(' ' . $op . ' ', array_map(function ($val) {
+            return preg_replace('~([\|\+&\!\%\^])~', '\\\\$1', $val);
+        }, $children));
+
+        if ((count($children) < 2) && $op !== '&') {
+            return $op . ' ' . $str;
+        } else {
+            return $str;
+        }
+    }
+
+    /**
+     * @param BpNode $node
+     * @return string
+     */
+    public static function renderDisplay(BpNode $node)
+    {
+        if ($node->hasAlias() || $node->getDisplay() > 0) {
+            $prio = $node->getDisplay();
+            return sprintf(
+                "display %s;%s;%s\n",
+                $prio,
+                $node->getName(),
+                $node->getAlias()
+            );
+        } else {
+            return '';
+        }
+    }
+
+    public static function renderStateOverrides(BpNode $node)
+    {
+        $stateOverrides = '';
+        foreach ($node->getStateOverrides() as $childName => $overrideRules) {
+            $overrides = [];
+            foreach ($overrideRules as $from => $to) {
+                $overrides[] = sprintf('%d-%d', $from, $to);
+            }
+
+            if (! empty($overrides)) {
+                $stateOverrides .= '!' . $childName . '|' . join(',', $overrides);
+            }
+        }
+
+        if (! $stateOverrides) {
+            return '';
+        }
+
+        return 'state_overrides ' . $node->getName() . $stateOverrides . "\n";
+    }
+
+    /**
+     * @param BpNode $node
+     * @return string
+     */
+    public static function renderInfoUrl(BpNode $node)
+    {
+        if ($node->hasInfoUrl()) {
+            return sprintf(
+                "info_url %s;%s\n",
+                $node->getName(),
+                $node->getInfoUrl()
+            );
+        } else {
+            return '';
+        }
+    }
+}
diff --git a/library/Businessprocess/Storage/LegacyStorage.php b/library/Businessprocess/Storage/LegacyStorage.php
new file mode 100644
index 0000000..f6cf1e5
--- /dev/null
+++ b/library/Businessprocess/Storage/LegacyStorage.php
@@ -0,0 +1,205 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Storage;
+
+use DirectoryIterator;
+use Icinga\Application\Hook\AuditHook;
+use Icinga\Application\Icinga;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Exception\SystemPermissionException;
+
+class LegacyStorage extends Storage
+{
+    /**
+     * All parsed configurations
+     *
+     * @var BpConfig[]
+     */
+    protected $configs = [];
+
+    /** @var string */
+    protected $configDir;
+
+    public function getConfigDir()
+    {
+        if ($this->configDir === null) {
+            $this->prepareDefaultConfigDir();
+        }
+
+        return $this->configDir;
+    }
+
+    protected function prepareDefaultConfigDir()
+    {
+        $dir = Icinga::app()
+            ->getModuleManager()
+            ->getModule('businessprocess')
+            ->getConfigDir();
+
+        // TODO: This is silly. We need Config::requireDirectory().
+        if (! is_dir($dir)) {
+            if (! is_dir(dirname($dir))) {
+                if (! @mkdir(dirname($dir))) {
+                    throw new SystemPermissionException('Could not create config directory "%s"', dirname($dir));
+                }
+            }
+            if (! mkdir($dir)) {
+                throw new SystemPermissionException('Could not create config directory "%s"', $dir);
+            }
+        }
+        $dir = $dir . '/processes';
+        if (! is_dir($dir)) {
+            if (! mkdir($dir)) {
+                throw new SystemPermissionException('Could not create config directory "%s"', $dir);
+            }
+        }
+
+        $this->configDir = $dir;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function listProcesses()
+    {
+        $files = array();
+
+        foreach ($this->listAllProcessNames() as $name) {
+            $meta = $this->loadMetadata($name);
+            if (! $meta->canRead()) {
+                continue;
+            }
+
+            $files[$name] = $meta->getExtendedTitle();
+        }
+
+        return $files;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function listProcessNames()
+    {
+        $files = array();
+
+        foreach ($this->listAllProcessNames() as $name) {
+            $meta = $this->loadMetadata($name);
+            if (! $meta->canRead()) {
+                continue;
+            }
+
+            $files[$name] = $name;
+        }
+
+        return $files;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function listAllProcessNames()
+    {
+        $files = array();
+
+        foreach (new DirectoryIterator($this->getConfigDir()) as $file) {
+            if ($file->isDot()) {
+                continue;
+            }
+
+            $filename = $file->getFilename();
+            if (substr($filename, -5) === '.conf') {
+                $files[] = substr($filename, 0, -5);
+            }
+        }
+
+        natcasesort($files);
+        return $files;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function loadProcess($name)
+    {
+        if (! isset($this->configs[$name])) {
+            $this->configs[$name] = LegacyConfigParser::parseFile(
+                $name,
+                $this->getFilename($name)
+            );
+        }
+
+        return $this->configs[$name];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function storeProcess(BpConfig $process)
+    {
+        AuditHook::logActivity('businessprocess/store', "Business Process \"{$process->getName()}\" stored");
+        file_put_contents(
+            $this->getFilename($process->getName()),
+            LegacyConfigRenderer::renderConfig($process)
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function deleteProcess($name)
+    {
+        AuditHook::logActivity('businessprocess/delete', "Business Process \"{$name}\" deleted");
+        return @unlink($this->getFilename($name));
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function loadMetadata($name)
+    {
+        if (isset($this->configs[$name])) {
+            return $this->configs[$name]->getMetadata();
+        }
+
+        return LegacyConfigParser::readMetadataFromFileHeader(
+            $name,
+            $this->getFilename($name)
+        );
+    }
+
+    public function getSource($name)
+    {
+        return file_get_contents($this->getFilename($name));
+    }
+
+    public function getFilename($name)
+    {
+        return $this->getConfigDir() . '/' . $name . '.conf';
+    }
+
+    /**
+     * @param $name
+     * @param $string
+     *
+     * @return BpConfig
+     */
+    public function loadFromString($name, $string)
+    {
+        return LegacyConfigParser::parseString($name, $string);
+    }
+
+    /**
+     * @param $name
+     * @return bool
+     */
+    public function hasProcess($name)
+    {
+        $file = $this->getFilename($name);
+        if (! is_file($file)) {
+            return false;
+        }
+
+        return $this->loadMetadata($name)->canRead();
+    }
+}
diff --git a/library/Businessprocess/Storage/Storage.php b/library/Businessprocess/Storage/Storage.php
new file mode 100644
index 0000000..c8a07ba
--- /dev/null
+++ b/library/Businessprocess/Storage/Storage.php
@@ -0,0 +1,107 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Storage;
+
+use Icinga\Application\Config;
+use Icinga\Data\ConfigObject;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Metadata;
+
+abstract class Storage
+{
+    /**
+     * @var static
+     */
+    protected static $instance;
+
+    /**
+     * @var ConfigObject
+     */
+    protected $config;
+
+    /**
+     * Storage constructor.
+     * @param ConfigObject $config
+     */
+    public function __construct(ConfigObject $config)
+    {
+        $this->config = $config;
+        $this->init();
+    }
+
+    protected function init()
+    {
+    }
+
+    public static function getInstance()
+    {
+        if (static::$instance === null) {
+            static::$instance = new static(Config::module('businessprocess')->getSection('global'));
+        }
+
+        return static::$instance;
+    }
+
+    /**
+     * All processes readable by the current user
+     *
+     * The returned array has the form <process name> => <nice title>, sorted
+     * by title
+     *
+     * @return array
+     */
+    abstract public function listProcesses();
+
+    /**
+     * All process names readable by the current user
+     *
+     * The returned array has the form <process name> => <process name> and is
+     * sorted
+     *
+     * @return array
+     */
+    abstract public function listProcessNames();
+
+    /**
+     * All available process names, regardless of eventual restrictions
+     *
+     * @return array
+     */
+    abstract public function listAllProcessNames();
+
+    /**
+     * Whether a configuration with the given name exists
+     *
+     * @param $name
+     *
+     * @return bool
+     */
+    abstract public function hasProcess($name);
+
+    /**
+     * @param $name
+     * @return BpConfig
+     */
+    abstract public function loadProcess($name);
+
+    /**
+     * Store eventual changes applied to the given configuration
+     *
+     * @param BpConfig $config
+     *
+     * @return mixed
+     */
+    abstract public function storeProcess(BpConfig $config);
+
+    /**
+     * @param $name
+     * @return bool Whether the process has been deleted
+     */
+    abstract public function deleteProcess($name);
+
+    /**
+     * @param  string $name
+     * @return Metadata
+     */
+    abstract public function loadMetadata($name);
+}
diff --git a/library/Businessprocess/Test/BaseTestCase.php b/library/Businessprocess/Test/BaseTestCase.php
new file mode 100644
index 0000000..ba32b7c
--- /dev/null
+++ b/library/Businessprocess/Test/BaseTestCase.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Test;
+
+use Icinga\Application\Config;
+use Icinga\Application\ApplicationBootstrap;
+use Icinga\Application\Icinga;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+abstract class BaseTestCase extends \Icinga\Test\BaseTestCase
+{
+    /** @var ApplicationBootstrap */
+    private static $app;
+
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        $this->getRequestMock()->shouldReceive('getBaseUrl')->andReturn('/icingaweb2/');
+
+        $this->app()
+            ->getModuleManager()
+            ->loadModule('businessprocess');
+    }
+
+    protected function emptyConfigSection()
+    {
+        return Config::module('businessprocess')->getSection('global');
+    }
+
+    /***
+     * @return BpConfig
+     */
+    protected function makeLoop()
+    {
+        return $this->makeInstance()->loadFromString(
+            'loop',
+            "a = b\nb = c\nc = a\nd = a"
+        );
+    }
+
+    /**
+     * @return LegacyStorage
+     */
+    protected function makeInstance()
+    {
+        return new LegacyStorage($this->emptyConfigSection());
+    }
+
+    /**
+     * @param ?string $subDir
+     * @return string
+     */
+    protected function getTestsBaseDir($subDir = null)
+    {
+        $dir = dirname(dirname(dirname(__DIR__))) . '/test';
+        if ($subDir === null) {
+            return $dir;
+        } else {
+            return $dir . '/' . ltrim($subDir, '/');
+        }
+    }
+
+    /**
+     * @return ApplicationBootstrap
+     */
+    protected function app()
+    {
+        if (self::$app === null) {
+            self::$app = Icinga::app();
+        }
+
+        return self::$app;
+    }
+}
diff --git a/library/Businessprocess/Test/Bootstrap.php b/library/Businessprocess/Test/Bootstrap.php
new file mode 100644
index 0000000..4141c16
--- /dev/null
+++ b/library/Businessprocess/Test/Bootstrap.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Test;
+
+use Icinga\Application\Cli;
+
+class Bootstrap
+{
+    public static function cli($basedir = null)
+    {
+        error_reporting(E_ALL | E_STRICT);
+        if ($basedir === null) {
+            $basedir = dirname(dirname(dirname(__DIR__)));
+        }
+        $testsDir = $basedir . '/test';
+        require_once 'Icinga/Application/Cli.php';
+
+        if (array_key_exists('ICINGAWEB_CONFIGDIR', $_SERVER)) {
+            $configDir = $_SERVER['ICINGAWEB_CONFIGDIR'];
+        } else {
+            $configDir = $testsDir . '/config';
+        }
+
+        Cli::start($testsDir, $configDir)
+            ->getModuleManager()
+            ->loadModule('ipl', $basedir . '/vendor/ipl')
+            ->loadModule('businessprocess', $basedir);
+    }
+}
diff --git a/library/Businessprocess/Web/Component/ActionBar.php b/library/Businessprocess/Web/Component/ActionBar.php
new file mode 100644
index 0000000..94458dc
--- /dev/null
+++ b/library/Businessprocess/Web/Component/ActionBar.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Component;
+
+use ipl\Html\BaseHtmlElement;
+
+class ActionBar extends BaseHtmlElement
+{
+    protected $contentSeparator = ' ';
+
+    /** @var string */
+    protected $tag = 'div';
+
+    protected $defaultAttributes = array('class' => 'action-bar');
+}
diff --git a/library/Businessprocess/Web/Component/BpDashboardTile.php b/library/Businessprocess/Web/Component/BpDashboardTile.php
new file mode 100644
index 0000000..9a4a0f6
--- /dev/null
+++ b/library/Businessprocess/Web/Component/BpDashboardTile.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Component;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use ipl\Html\BaseHtmlElement;
+use ipl\Html\Html;
+use ipl\Html\Text;
+use ipl\Web\Url;
+use ipl\Web\Widget\Icon;
+use ipl\Web\Widget\Link;
+
+class BpDashboardTile extends BaseHtmlElement
+{
+    protected $tag = 'div';
+
+    protected $defaultAttributes = ['class' => 'dashboard-tile'];
+
+    public function __construct(BpConfig $bp, $title, $description, $icon, $url, $urlParams = null, $attributes = null)
+    {
+        $this->add(Html::tag(
+            'div',
+            ['class' => 'bp-link', 'data-base-target' => '_main'],
+            (new Link(new Icon($icon), Url::fromPath($url, $urlParams ?: []), $attributes))
+                ->add(Html::tag('span', ['class' => 'header'], $title))
+                ->add($description)
+        ));
+
+        $tiles = Html::tag('div', ['class' => 'bp-root-tiles']);
+
+        foreach ($bp->getChildren() as $node) {
+            $state = strtolower($node->getStateName());
+
+            $tiles->add(Html::tag(
+                'a',
+                [
+                    'href'  => Url::fromPath($url, $urlParams ?: [])->with(['node' => $node->getName()]),
+                    'class' => "badge state-{$state}",
+                    'title' => $node->getAlias()
+                ],
+                Text::create('&nbsp;')->setEscaped()
+            ));
+        }
+
+        $this->add($tiles);
+    }
+}
diff --git a/library/Businessprocess/Web/Component/Content.php b/library/Businessprocess/Web/Component/Content.php
new file mode 100644
index 0000000..6d14197
--- /dev/null
+++ b/library/Businessprocess/Web/Component/Content.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Component;
+
+use ipl\Html\BaseHtmlElement;
+
+class Content extends BaseHtmlElement
+{
+    protected $tag = 'div';
+
+    protected $contentSeparator = "\n";
+
+    protected $defaultAttributes = array('class' => 'content');
+}
diff --git a/library/Businessprocess/Web/Component/Controls.php b/library/Businessprocess/Web/Component/Controls.php
new file mode 100644
index 0000000..259cbbb
--- /dev/null
+++ b/library/Businessprocess/Web/Component/Controls.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Component;
+
+use ipl\Html\BaseHtmlElement;
+
+class Controls extends BaseHtmlElement
+{
+    protected $tag = 'div';
+
+    protected $contentSeparator = "\n";
+
+    protected $defaultAttributes = array('class' => 'controls');
+}
diff --git a/library/Businessprocess/Web/Component/Dashboard.php b/library/Businessprocess/Web/Component/Dashboard.php
new file mode 100644
index 0000000..d211772
--- /dev/null
+++ b/library/Businessprocess/Web/Component/Dashboard.php
@@ -0,0 +1,140 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Component;
+
+use Exception;
+use Icinga\Application\Modules\Module;
+use Icinga\Authentication\Auth;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\ProvidedHook\Icingadb\IcingadbSupport;
+use Icinga\Module\Businessprocess\State\IcingaDbState;
+use Icinga\Module\Businessprocess\State\MonitoringState;
+use Icinga\Module\Businessprocess\Storage\Storage;
+use ipl\Html\BaseHtmlElement;
+use ipl\Html\Html;
+
+class Dashboard extends BaseHtmlElement
+{
+    /** @var string */
+    protected $contentSeparator = "\n";
+
+    /** @var string */
+    protected $tag = 'div';
+
+    protected $defaultAttributes = array(
+        'class' => 'overview-dashboard',
+        'data-base-target' => '_next'
+    );
+
+    /** @var Auth */
+    protected $auth;
+
+    /** @var Storage */
+    protected $storage;
+
+    /**
+     * Dashboard constructor.
+     * @param Auth $auth
+     * @param Storage $storage
+     */
+    protected function __construct(Auth $auth, Storage $storage)
+    {
+        $this->auth = $auth;
+        $this->storage = $storage;
+        // TODO: Auth?
+        $processes = $storage->listProcessNames();
+        $this->add(
+            Html::tag('h1', null, mt('businessprocess', 'Welcome to your Business Process Overview'))
+        );
+        $this->add(Html::tag(
+            'p',
+            null,
+            mt(
+                'businessprocess',
+                'From here you can reach all your defined Business Process'
+                . ' configurations, create new or modify existing ones'
+            )
+        ));
+        if ($auth->hasPermission('businessprocess/create')) {
+            $this->add(
+                new DashboardAction(
+                    mt('businessprocess', 'Create'),
+                    mt('businessprocess', 'Create a new Business Process configuration'),
+                    'plus',
+                    'businessprocess/process/create',
+                    null,
+                    array('class' => 'addnew')
+                )
+            )->add(
+                new DashboardAction(
+                    mt('businessprocess', 'Upload'),
+                    mt('businessprocess', 'Upload an existing Business Process configuration'),
+                    'upload',
+                    'businessprocess/process/upload',
+                    null,
+                    array('class' => 'addnew')
+                )
+            );
+        } elseif (empty($processes)) {
+            $this->add(
+                Html::tag('div')
+                    ->add(Html::tag('h1', null, mt('businessprocess', 'Not available')))
+                    ->add(Html::tag('p', null, mt(
+                        'businessprocess',
+                        'No Business Process has been defined for you'
+                    )))
+            );
+        }
+
+        foreach ($processes as $name) {
+            $meta = $storage->loadMetadata($name);
+            $title = $meta->get('Title');
+
+            if ($title === null) {
+                $title = $name;
+            }
+
+            try {
+                $bp = $storage->loadProcess($name);
+            } catch (Exception $e) {
+                $this->add(new BpDashboardTile(
+                    new BpConfig(),
+                    $title,
+                    sprintf(t('File %s has faulty config'), $name . '.conf'),
+                    'file-circle-xmark',
+                    'businessprocess/process/show',
+                    ['config' => $name]
+                ));
+
+                continue;
+            }
+
+            if (Module::exists('icingadb') &&
+                (! $bp->hasBackendName() && IcingadbSupport::useIcingaDbAsBackend())
+            ) {
+                IcingaDbState::apply($bp);
+            } else {
+                MonitoringState::apply($bp);
+            }
+
+            $this->add(new BpDashboardTile(
+                $bp,
+                $title,
+                $meta->get('Description'),
+                'sitemap',
+                'businessprocess/process/show',
+                array('config' => $name)
+            ));
+        }
+    }
+
+    /**
+     * @param Auth $auth
+     * @param Storage $storage
+     * @return static
+     */
+    public static function create(Auth $auth, Storage $storage)
+    {
+        return new static($auth, $storage);
+    }
+}
diff --git a/library/Businessprocess/Web/Component/DashboardAction.php b/library/Businessprocess/Web/Component/DashboardAction.php
new file mode 100644
index 0000000..9bd3240
--- /dev/null
+++ b/library/Businessprocess/Web/Component/DashboardAction.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Component;
+
+use Icinga\Web\Url;
+use ipl\Html\BaseHtmlElement;
+use ipl\Html\Html;
+use ipl\Web\Widget\Icon;
+
+class DashboardAction extends BaseHtmlElement
+{
+    protected $tag = 'div';
+
+    protected $defaultAttributes = array('class' => 'action');
+
+    public function __construct($title, $description, $icon, $url, $urlParams = null, $attributes = null)
+    {
+        if (! isset($attributes['href'])) {
+            $attributes['href'] = Url::fromPath($url, $urlParams ?: []);
+        }
+
+        $this->add(Html::tag('a', $attributes)
+            ->add(new Icon($icon))
+            ->add(Html::tag('span', ['class' => 'header'], $title))
+            ->add($description));
+    }
+}
diff --git a/library/Businessprocess/Web/Component/RenderedProcessActionBar.php b/library/Businessprocess/Web/Component/RenderedProcessActionBar.php
new file mode 100644
index 0000000..41fa0f8
--- /dev/null
+++ b/library/Businessprocess/Web/Component/RenderedProcessActionBar.php
@@ -0,0 +1,161 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Component;
+
+use Icinga\Authentication\Auth;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Renderer\Renderer;
+use Icinga\Module\Businessprocess\Renderer\TreeRenderer;
+use Icinga\Web\Url;
+use ipl\Html\Html;
+use ipl\Web\Widget\Icon;
+
+class RenderedProcessActionBar extends ActionBar
+{
+    public function __construct(BpConfig $config, Renderer $renderer, Url $url)
+    {
+        $meta = $config->getMetadata();
+
+        if ($renderer instanceof TreeRenderer) {
+            $link = Html::tag(
+                'a',
+                [
+                    'href'  => $url->with('mode', 'tile'),
+                    'title' => mt('businessprocess', 'Switch to Tile view')
+                ]
+            );
+        } else {
+            $link = Html::tag(
+                'a',
+                [
+                    'href'  => $url->with('mode', 'tree'),
+                    'title' => mt('businessprocess', 'Switch to Tree view')
+                ]
+            );
+        }
+
+        $link->add([
+            new Icon('grip', ['class' => $renderer instanceof TreeRenderer ? null : 'active']),
+            new Icon('sitemap', ['class' => $renderer instanceof TreeRenderer ? 'active' : null])
+        ]);
+
+        $this->add(
+            Html::tag('div', ['class' => 'view-toggle'])
+                ->add(Html::tag('span', null, mt('businessprocess', 'View')))
+                ->add($link)
+        );
+
+        $this->add(Html::tag(
+            'a',
+            [
+                'data-base-target' => '_main',
+                'href'  => $url->with('showFullscreen', true),
+                'title' => mt('businessprocess', 'Switch to fullscreen mode'),
+            ],
+            [
+                new Icon('maximize'),
+                mt('businessprocess', 'Fullscreen')
+            ]
+        ));
+
+        $hasChanges = $config->hasSimulations() || $config->hasBeenChanged();
+
+        if ($renderer->isLocked()) {
+            if (! $renderer->wantsRootNodes() && $renderer->rendersImportedNode()) {
+                $span = Html::tag('span', [
+                    'class' => 'disabled',
+                    'title' => mt(
+                        'businessprocess',
+                        'Imported processes can only be changed in their original configuration'
+                    )
+                ]);
+                $span->add([new Icon('lock'), mt('businessprocess', 'Editing Locked')]);
+                $this->add($span);
+            } else {
+                $this->add(Html::tag(
+                    'a',
+                    [
+                        'href'  => $url->with('unlocked', true),
+                        'title' => mt('businessprocess', 'Click to unlock editing for this process'),
+                    ],
+                    [
+                        new Icon('lock'),
+                        mt('businessprocess', 'Unlock Editing')
+                    ]
+                ));
+            }
+        } elseif (! $hasChanges) {
+            $this->add(Html::tag(
+                'a',
+                [
+                    'href'  => $url->without('unlocked')->without('action'),
+                    'title' => mt('businessprocess', 'Click to lock editing for this process'),
+                ],
+                [
+                    new Icon('lock-open'),
+                    mt('businessprocess', 'Lock Editing')
+                ]
+            ));
+        }
+
+        if (($hasChanges || ! $renderer->isLocked()) && $meta->canModify()) {
+            if ($renderer->wantsRootNodes()) {
+                $this->add(Html::tag(
+                    'a',
+                    [
+                        'data-base-target' => '_next',
+                        'href'  => Url::fromPath('businessprocess/process/config', $this->currentProcessParams($url)),
+                        'title' => mt('businessprocess', 'Modify this process'),
+                    ],
+                    [
+                        new Icon('wrench'),
+                        mt('businessprocess', 'Config')
+                    ]
+                ));
+            } else {
+                $this->add(Html::tag(
+                    'a',
+                    [
+                        'href'  => $url->with([
+                            'action'    => 'edit',
+                            'editnode'  => $url->getParam('node')
+                        ])->getAbsoluteUrl(),
+                        'title' => mt('businessprocess', 'Modify this process'),
+                    ],
+                    [
+                        new Icon('wrench'),
+                        mt('businessprocess', 'Config')
+                    ]
+                ));
+            }
+        }
+
+        if (($hasChanges || (! $renderer->isLocked())) && $meta->canModify()) {
+            $this->add(Html::tag(
+                'a',
+                [
+                    'href'  => $url->with('action', 'add'),
+                    'title' => mt('businessprocess', 'Add a new business process node'),
+                    'class' => 'button-link'
+                ],
+                [
+                    new Icon('plus'),
+                    mt('businessprocess', 'Add Node')
+                ]
+            ));
+        }
+    }
+
+    protected function currentProcessParams(Url $url)
+    {
+        $urlParams = $url->getParams();
+        $params = array();
+        foreach (array('config', 'node') as $name) {
+            if ($value = $urlParams->get($name)) {
+                $params[$name] = $value;
+            }
+        }
+
+        return $params;
+    }
+}
diff --git a/library/Businessprocess/Web/Component/Tabs.php b/library/Businessprocess/Web/Component/Tabs.php
new file mode 100644
index 0000000..aaa444e
--- /dev/null
+++ b/library/Businessprocess/Web/Component/Tabs.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Component;
+
+use ipl\Html\ValidHtml;
+
+class Tabs extends WtfTabs implements ValidHtml
+{
+}
diff --git a/library/Businessprocess/Web/Component/WtfTabs.php b/library/Businessprocess/Web/Component/WtfTabs.php
new file mode 100644
index 0000000..8f2250f
--- /dev/null
+++ b/library/Businessprocess/Web/Component/WtfTabs.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Component;
+
+use Icinga\Web\Widget\Tabs;
+
+/**
+ * Class WtfTabs
+ *
+ * TODO: Please remove this as soon as we drop support for PHP 5.3.x
+ *       This works around https://bugs.php.net/bug.php?id=43200 and fixes
+ *       https://github.com/Icinga/icingaweb2-module-businessprocess/issues/81
+ *
+ * @package Icinga\Module\Businessprocess\Web\Component
+ */
+class WtfTabs extends Tabs
+{
+    public function render()
+    {
+        return parent::render();
+    }
+}
diff --git a/library/Businessprocess/Web/Controller.php b/library/Businessprocess/Web/Controller.php
new file mode 100644
index 0000000..43200cc
--- /dev/null
+++ b/library/Businessprocess/Web/Controller.php
@@ -0,0 +1,262 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web;
+
+use Icinga\Application\Icinga;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Modification\ProcessChanges;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+use Icinga\Module\Businessprocess\Storage\Storage;
+use Icinga\Module\Businessprocess\Web\Component\ActionBar;
+use Icinga\Module\Businessprocess\Web\Component\Controls;
+use Icinga\Module\Businessprocess\Web\Component\Content;
+use Icinga\Module\Businessprocess\Web\Component\Tabs;
+use Icinga\Module\Businessprocess\Web\Form\FormLoader;
+use Icinga\Web\Notification;
+use Icinga\Web\View;
+use ipl\Html\Html;
+use ipl\Web\Compat\CompatController;
+
+class Controller extends CompatController
+{
+    /** @var View */
+    public $view;
+
+    /** @var BpConfig */
+    protected $bp;
+
+    /** @var Tabs */
+    protected $mytabs;
+
+    /** @var Storage */
+    private $storage;
+
+    /** @var bool */
+    protected $showFullscreen;
+
+    /** @var Url */
+    private $url;
+
+    public function init()
+    {
+        $m = Icinga::app()->getModuleManager();
+        if (! $m->hasLoaded('monitoring') && $m->hasInstalled('monitoring')) {
+            $m->loadModule('monitoring');
+        }
+        $this->controls();
+        $this->content();
+        $this->url();
+        $this->view->showFullscreen
+            = $this->showFullscreen
+            = (bool) $this->_helper->layout()->showFullscreen;
+
+        $this->setViewScript('default');
+    }
+
+    /**
+     * @return Url
+     */
+    protected function url()
+    {
+        if ($this->url === null) {
+            $this->url = Url::fromPath(
+                $this->getRequest()->getUrl()->getPath()
+            )->setParams($this->getRequest()->getUrl()->getParams());
+        }
+
+        return $this->url;
+    }
+
+    /**
+     * @return ActionBar
+     */
+    protected function actions()
+    {
+        if ($this->view->actions === null) {
+            $this->view->actions = new ActionBar();
+        }
+
+        return $this->view->actions;
+    }
+
+    /**
+     * @return Controls
+     */
+    protected function controls()
+    {
+        if ($this->view->controls === null) {
+            $controls = $this->view->controls = new Controls();
+            if ($this->view->compact) {
+                $controls->getAttributes()->add('class', 'compact');
+            }
+        }
+
+        return $this->view->controls;
+    }
+
+    /**
+     * @return Content
+     */
+    protected function content()
+    {
+        if ($this->view->content === null) {
+            $content = $this->view->content = new Content();
+            if ($this->view->compact) {
+                $content->getAttributes()->add('class', 'compact');
+            }
+        }
+
+        return $this->view->content;
+    }
+
+    /**
+     * @param $label
+     * @return Tabs
+     */
+    protected function singleTab($label)
+    {
+        return $this->tabs()->add(
+            'tab',
+            array(
+                'label' => $label,
+                'url'   => $this->getRequest()->getUrl()
+            )
+        )->activate('tab');
+    }
+
+    /**
+     * @return Tabs
+     */
+    protected function defaultTab()
+    {
+        return $this->singleTab($this->translate('Business Process'));
+    }
+
+    /**
+     * @return Tabs
+     */
+    protected function overviewTab()
+    {
+        return $this->tabs()->add(
+            'overview',
+            array(
+                'label' => $this->translate('Business Process'),
+                'url'   => 'businessprocess'
+            )
+        )->activate('overview');
+    }
+
+    /**
+     * @return Tabs
+     */
+    protected function tabs()
+    {
+        // Todo: do not add to view once all of them render controls()
+        if ($this->mytabs === null) {
+            $tabs = new Tabs();
+            //$this->controls()->add($tabs);
+            $this->mytabs = $tabs;
+        }
+
+        return $this->mytabs;
+    }
+
+    protected function session()
+    {
+        return $this->Window()->getSessionNamespace('businessprocess');
+    }
+
+    protected function setViewScript($name)
+    {
+        $this->_helper->viewRenderer->setNoController(true);
+        $this->_helper->viewRenderer->setScriptAction($name);
+        return $this;
+    }
+
+    protected function addTitle($title)
+    {
+        $args = func_get_args();
+        array_shift($args);
+        $this->view->title = vsprintf($title, $args);
+        $this->controls()->add(Html::tag('h1', null, $this->view->title));
+        return $this;
+    }
+
+    protected function loadModifiedBpConfig()
+    {
+        $bp = $this->loadBpConfig();
+        $changes = ProcessChanges::construct($bp, $this->session());
+        if ($this->params->get('dismissChanges')) {
+            Notification::success(
+                sprintf(
+                    $this->translate('%d pending change(s) have been dropped'),
+                    $changes->count()
+                )
+            );
+            $changes->clear();
+            $this->redirectNow($this->url()->without('dismissChanges')->without('unlocked'));
+        }
+        $bp->applyChanges($changes);
+        return $bp;
+    }
+
+    protected function doNotRender()
+    {
+        $this->_helper->layout()->disableLayout();
+        $this->_helper->viewRenderer->setNoRender(true);
+        return $this;
+    }
+
+    protected function loadBpConfig()
+    {
+        $name = $this->params->get('config');
+        /** @var LegacyStorage $storage */
+        $storage = $this->storage();
+
+        if (! $storage->hasProcess($name)) {
+            $this->httpNotFound(
+                $this->translate('No such process config: "%s"'),
+                $name
+            );
+        }
+
+        $modifications = $this->session()->get('modifications', array());
+        if (array_key_exists($name, $modifications)) {
+            $bp = $storage->loadFromString($name, $modifications[$name]);
+        } else {
+            $bp = $storage->loadProcess($name);
+        }
+
+        // allow URL parameter to override configured state type
+        if (null !== ($stateType = $this->params->get('state_type'))) {
+            if ($stateType === 'soft') {
+                $bp->useSoftStates();
+            }
+            if ($stateType === 'hard') {
+                $bp->useHardStates();
+            }
+        }
+
+        $this->view->bpconfig = $this->bp = $bp;
+        $this->view->configName = $bp->getName();
+
+        return $bp;
+    }
+
+    public function loadForm($name)
+    {
+        return FormLoader::load($name, $this->Module());
+    }
+
+    /**
+     * @return LegacyStorage
+     */
+    protected function storage()
+    {
+        if ($this->storage === null) {
+            $this->storage = LegacyStorage::getInstance();
+        }
+
+        return $this->storage;
+    }
+}
diff --git a/library/Businessprocess/Web/FakeRequest.php b/library/Businessprocess/Web/FakeRequest.php
new file mode 100644
index 0000000..4e54117
--- /dev/null
+++ b/library/Businessprocess/Web/FakeRequest.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web;
+
+use Icinga\Exception\ProgrammingError;
+use Icinga\Web\Request;
+
+class FakeRequest extends Request
+{
+    /** @var string */
+    private static $baseUrl;
+
+    public static function setConfiguredBaseUrl($url)
+    {
+        self::$baseUrl = $url;
+    }
+
+    public function getBaseUrl($raw = false)
+    {
+        if (self::$baseUrl === null) {
+            throw new ProgrammingError('Cannot determine base URL on CLI if not configured');
+        } else {
+            return self::$baseUrl;
+        }
+    }
+}
diff --git a/library/Businessprocess/Web/Form/BpConfigBaseForm.php b/library/Businessprocess/Web/Form/BpConfigBaseForm.php
new file mode 100644
index 0000000..5ccdf06
--- /dev/null
+++ b/library/Businessprocess/Web/Form/BpConfigBaseForm.php
@@ -0,0 +1,135 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form;
+
+use Icinga\Application\Config;
+use Icinga\Application\Icinga;
+use Icinga\Authentication\Auth;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Storage\Storage;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+use Icinga\Web\Session\SessionNamespace;
+use ipl\Sql\Connection as IcingaDbConnection;
+
+abstract class BpConfigBaseForm extends QuickForm
+{
+    /** @var Storage */
+    protected $storage;
+
+    /** @var BpConfig */
+    protected $bp;
+
+    /** @var MonitoringBackend|IcingaDbConnection*/
+    protected $backend;
+
+    /** @var SessionNamespace */
+    protected $session;
+
+    protected function listAvailableBackends()
+    {
+        $keys = [];
+        $moduleManager = Icinga::app()->getModuleManager();
+        if ($moduleManager->hasEnabled('monitoring')) {
+            $keys = array_keys(Config::module('monitoring', 'backends')->toArray());
+            $keys = array_combine($keys, $keys);
+        }
+
+        return $keys;
+    }
+
+    /**
+     * Set the storage to use
+     *
+     * @param Storage $storage
+     *
+     * @return $this
+     */
+    public function setStorage(Storage $storage): self
+    {
+        $this->storage = $storage;
+
+        return $this;
+    }
+
+    /**
+     * Set the config to use
+     *
+     * @param BpConfig $config
+     *
+     * @return $this
+     */
+    public function setProcess(BpConfig $config): self
+    {
+        $this->bp = $config;
+        $this->setBackend($config->getBackend());
+
+        return $this;
+    }
+
+    /**
+     * Set the backend to use
+     *
+     * @param MonitoringBackend|IcingaDbConnection $backend
+     *
+     * @return $this
+     */
+    public function setBackend($backend): self
+    {
+        $this->backend = $backend;
+
+        return $this;
+    }
+
+    /**
+     * Set the session namespace to use
+     *
+     * @param SessionNamespace $session
+     *
+     * @return $this
+     */
+    public function setSession(SessionNamespace $session): self
+    {
+        $this->session = $session;
+
+        return $this;
+    }
+
+    protected function prepareMetadata(BpConfig $config)
+    {
+        $meta = $config->getMetadata();
+        $auth = Auth::getInstance();
+        $meta->set('Owner', $auth->getUser()->getUsername());
+
+        if ($auth->hasPermission('businessprocess/showall')) {
+            return true;
+        }
+
+        $prefixes = $auth->getRestrictions('businessprocess/prefix');
+        if (! empty($prefixes) && ! $meta->nameIsPrefixedWithOneOf($prefixes)) {
+            if (count($prefixes) === 1) {
+                $this->getElement('name')->addError(sprintf(
+                    $this->translate('Please prefix the name with "%s"'),
+                    current($prefixes)
+                ));
+            } else {
+                $this->getElement('name')->addError(sprintf(
+                    $this->translate('Please prefix the name with one of "%s"'),
+                    implode('", "', $prefixes)
+                ));
+            }
+
+            return false;
+        }
+
+        return true;
+    }
+
+    protected function setPreferredDecorators()
+    {
+        parent::setPreferredDecorators();
+
+        $this->setAttrib('class', $this->getAttrib('class') . ' bp-form');
+
+        return $this;
+    }
+}
diff --git a/library/Businessprocess/Web/Form/CsrfToken.php b/library/Businessprocess/Web/Form/CsrfToken.php
new file mode 100644
index 0000000..9eb24ef
--- /dev/null
+++ b/library/Businessprocess/Web/Form/CsrfToken.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form;
+
+class CsrfToken
+{
+    /**
+     * Check whether the given token is valid
+     *
+     * @param string $token Token
+     *
+     * @return bool
+     */
+    public static function isValid($token)
+    {
+        if (strpos($token, '|') === false) {
+            return false;
+        }
+
+        list($seed, $token) = explode('|', $token);
+
+        if (!is_numeric($seed)) {
+            return false;
+        }
+
+        return $token === hash('sha256', self::getSessionId() . $seed);
+    }
+
+    /**
+     * Create a new token
+     *
+     * @return string
+     */
+    public static function generate()
+    {
+        $seed = mt_rand();
+        $token = hash('sha256', self::getSessionId() . $seed);
+
+        return sprintf('%s|%s', $seed, $token);
+    }
+
+    /**
+     * Get current session id
+     *
+     * TODO: we should do this through our App or Session object
+     *
+     * @return string
+     */
+    protected static function getSessionId()
+    {
+        return session_id();
+    }
+}
diff --git a/library/Businessprocess/Web/Form/Element/Checkbox.php b/library/Businessprocess/Web/Form/Element/Checkbox.php
new file mode 100644
index 0000000..7975b82
--- /dev/null
+++ b/library/Businessprocess/Web/Form/Element/Checkbox.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form\Element;
+
+class Checkbox extends \Icinga\Web\Form\Element\Checkbox
+{
+
+}
diff --git a/library/Businessprocess/Web/Form/Element/FormElement.php b/library/Businessprocess/Web/Form/Element/FormElement.php
new file mode 100644
index 0000000..7647a5e
--- /dev/null
+++ b/library/Businessprocess/Web/Form/Element/FormElement.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form\Element;
+
+use Zend_Form_Element_Xhtml;
+
+class FormElement extends Zend_Form_Element_Xhtml
+{
+}
diff --git a/library/Businessprocess/Web/Form/Element/IplStateOverrides.php b/library/Businessprocess/Web/Form/Element/IplStateOverrides.php
new file mode 100644
index 0000000..5b9ea16
--- /dev/null
+++ b/library/Businessprocess/Web/Form/Element/IplStateOverrides.php
@@ -0,0 +1,75 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form\Element;
+
+use ipl\Html\Attributes;
+use ipl\Html\FormElement\FieldsetElement;
+
+class IplStateOverrides extends FieldsetElement
+{
+    /** @var array */
+    protected $options = [];
+
+    /**
+     * Set the options show
+     *
+     * @param array $options
+     *
+     * @return $this
+     */
+    public function setOptions(array $options): self
+    {
+        $this->options = $options;
+
+        return $this;
+    }
+
+    /**
+     * Get the options to show
+     *
+     * @return array
+     */
+    public function getOptions(): array
+    {
+        return $this->options;
+    }
+
+    public function getValues()
+    {
+        $cleanedValue = parent::getValues();
+
+        if (! empty($cleanedValue)) {
+            foreach ($cleanedValue as $from => $to) {
+                if ((int) $from === (int) $to) {
+                    unset($cleanedValue[$from]);
+                }
+            }
+        }
+
+        return $cleanedValue;
+    }
+
+    protected function assemble()
+    {
+        $states = $this->getOptions();
+        foreach ($states as $state => $label) {
+            if ($state === 0) {
+                continue;
+            }
+
+            $this->addElement('select', $state, [
+                'label' => $label,
+                'value' => $state,
+                'options' => [$state => $this->translate('Keep actual state')] + $states
+            ]);
+        }
+    }
+
+    protected function registerAttributeCallbacks(Attributes $attributes)
+    {
+        parent::registerAttributeCallbacks($attributes);
+
+        $this->getAttributes()
+            ->registerAttributeCallback('options', null, [$this, 'setOptions']);
+    }
+}
diff --git a/library/Businessprocess/Web/Form/Element/SimpleNote.php b/library/Businessprocess/Web/Form/Element/SimpleNote.php
new file mode 100644
index 0000000..9f757f2
--- /dev/null
+++ b/library/Businessprocess/Web/Form/Element/SimpleNote.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form\Element;
+
+class SimpleNote extends FormElement
+{
+    public $helper = 'formSimpleNote';
+
+    /**
+     * Always ignore this element
+     * @codingStandardsIgnoreStart
+     *
+     * @var boolean
+     */
+    protected $_ignore = true;
+    // @codingStandardsIgnoreEnd
+    
+    public function isValid($value, $context = null)
+    {
+        return true;
+    }
+}
diff --git a/library/Businessprocess/Web/Form/FormLoader.php b/library/Businessprocess/Web/Form/FormLoader.php
new file mode 100644
index 0000000..0cc5389
--- /dev/null
+++ b/library/Businessprocess/Web/Form/FormLoader.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form;
+
+use Icinga\Application\Icinga;
+use Icinga\Application\Modules\Module;
+use Icinga\Exception\ProgrammingError;
+
+class FormLoader
+{
+    public static function load($name, Module $module = null)
+    {
+        if ($module === null) {
+            $basedir = Icinga::app()->getApplicationDir('forms');
+            $ns = '\\Icinga\\Web\\Forms\\';
+        } else {
+            $basedir = $module->getFormDir();
+            $ns = '\\Icinga\\Module\\' . ucfirst($module->getName()) . '\\Forms\\';
+        }
+
+        $file = null;
+        if (preg_match('~^[a-z0-9/]+$~i', $name)) {
+            $parts = preg_split('~/~', $name);
+            $class = ucfirst(array_pop($parts)) . 'Form';
+            $file = sprintf('%s/%s/%s.php', rtrim($basedir, '/'), implode('/', $parts), $class);
+            if (file_exists($file)) {
+                require_once($file);
+                $class = $ns . $class;
+                $options = array();
+                if ($module !== null) {
+                    $options['icingaModule'] = $module;
+                }
+
+                return new $class($options);
+            }
+        }
+        throw new ProgrammingError(sprintf('Cannot load %s (%s), no such form', $name, $file));
+    }
+}
diff --git a/library/Businessprocess/Web/Form/QuickBaseForm.php b/library/Businessprocess/Web/Form/QuickBaseForm.php
new file mode 100644
index 0000000..36d134f
--- /dev/null
+++ b/library/Businessprocess/Web/Form/QuickBaseForm.php
@@ -0,0 +1,166 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form;
+
+use Icinga\Application\Icinga;
+use Icinga\Application\Modules\Module;
+use ipl\Html\ValidHtml;
+use Zend_Form;
+
+abstract class QuickBaseForm extends Zend_Form implements ValidHtml
+{
+    /**
+     * The Icinga module this form belongs to. Usually only set if the
+     * form is initialized through the FormLoader
+     *
+     * @var ?Module
+     */
+    protected $icingaModule;
+
+    protected $icingaModuleName;
+
+    private $hintCount = 0;
+
+    public function __construct($options = null)
+    {
+        $this->callZfConstructor($this->handleOptions($options))
+            ->initializePrefixPaths();
+    }
+
+    protected function callZfConstructor($options = null)
+    {
+        parent::__construct($options);
+        return $this;
+    }
+
+    protected function initializePrefixPaths()
+    {
+        $this->addPrefixPathsForBusinessprocess();
+        if ($this->icingaModule && $this->icingaModuleName !== 'businessprocess') {
+            $this->addPrefixPathsForModule($this->icingaModule);
+        }
+    }
+
+    protected function addPrefixPathsForBusinessprocess()
+    {
+        $module = Icinga::app()
+            ->getModuleManager()
+            ->loadModule('businessprocess')
+            ->getModule('businessprocess');
+
+        $this->addPrefixPathsForModule($module);
+    }
+
+    public function addPrefixPathsForModule(Module $module)
+    {
+        $basedir = sprintf(
+            '%s/%s/Web/Form',
+            $module->getLibDir(),
+            ucfirst($module->getName())
+        );
+
+        $this->addPrefixPaths(array(
+            array(
+                'prefix'    => __NAMESPACE__ . '\\Element\\',
+                'path'      => $basedir . '/Element',
+                'type'      => static::ELEMENT
+            )
+        ));
+
+        return $this;
+    }
+
+    public function addHidden($name, $value = null)
+    {
+        $this->addElement('hidden', $name);
+        $el = $this->getElement($name);
+        $el->setDecorators(array('ViewHelper'));
+        if ($value !== null) {
+            $this->setDefault($name, $value);
+            $el->setValue($value);
+        }
+    
+        return $this;
+    }
+
+    // TODO: Should be an element
+    public function addHtmlHint($html, $options = array())
+    {
+        return $this->addHtml('<div class="hint">' . $html . '</div>', $options);
+    }
+
+    public function addHtml($html, $options = array())
+    {
+        if (array_key_exists('name', $options)) {
+            $name = $options['name'];
+            unset($options['name']);
+        } else {
+            $name = '_HINT' . ++$this->hintCount;
+        }
+
+        $this->addElement('simpleNote', $name, $options);
+        $this->getElement($name)
+            ->setValue($html)
+            ->setIgnore(true)
+            ->setDecorators(array('ViewHelper'));
+
+        return $this;
+    }
+
+    public function optionalEnum($enum, $nullLabel = null)
+    {
+        if ($nullLabel === null) {
+            $nullLabel = $this->translate('- please choose -');
+        }
+
+        return array(null => $nullLabel) + $enum;
+    }
+
+    protected function handleOptions($options = null)
+    {
+        if ($options === null) {
+            return $options;
+        }
+
+        if (array_key_exists('icingaModule', $options)) {
+            $this->icingaModule = $options['icingaModule'];
+            $this->icingaModuleName = $this->icingaModule->getName();
+            unset($options['icingaModule']);
+        }
+
+        return $options;
+    }
+
+    public function setIcingaModule(Module $module)
+    {
+        $this->icingaModule = $module;
+        return $this;
+    }
+
+    protected function loadForm($name, Module $module = null)
+    {
+        if ($module === null) {
+            $module = $this->icingaModule;
+        }
+
+        return FormLoader::load($name, $module);
+    }
+
+    protected function valueIsEmpty($value)
+    {
+        if (is_array($value)) {
+            return empty($value);
+        }
+
+        return strlen($value) === 0;
+    }
+
+    public function translate($string)
+    {
+        if ($this->icingaModuleName === null) {
+            return t($string);
+        } else {
+            return mt($this->icingaModuleName, $string);
+        }
+    }
+}
diff --git a/library/Businessprocess/Web/Form/QuickForm.php b/library/Businessprocess/Web/Form/QuickForm.php
new file mode 100644
index 0000000..cb4d287
--- /dev/null
+++ b/library/Businessprocess/Web/Form/QuickForm.php
@@ -0,0 +1,514 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form;
+
+use Icinga\Application\Icinga;
+use Icinga\Application\Web;
+use Icinga\Exception\ProgrammingError;
+use Icinga\Web\Notification;
+use Icinga\Web\Request;
+use Icinga\Web\Response;
+use Icinga\Web\Url;
+use Exception;
+
+/**
+ * QuickForm wants to be a base class for simple forms
+ */
+abstract class QuickForm extends QuickBaseForm
+{
+    const ID = '__FORM_NAME';
+
+    const CSRF = '__FORM_CSRF';
+
+    /**
+     * The name of this form
+     */
+    protected $formName;
+
+    /**
+     * Whether the form has been sent
+     */
+    protected $hasBeenSent;
+
+    /**
+     * Whether the form has been sent
+     */
+    protected $hasBeenSubmitted;
+
+    /**
+     * The submit caption, element - still tbd
+     */
+    // protected $submit;
+
+    /**
+     * Our request
+     */
+    protected $request;
+
+    /**
+     * @var ?Url
+     */
+    protected $successUrl;
+
+    protected $successMessage;
+
+    protected $submitLabel;
+
+    protected $submitButtonName;
+
+    protected $deleteButtonName;
+
+    protected $fakeSubmitButtonName;
+
+    /**
+     * Whether form elements have already been created
+     */
+    protected $didSetup = false;
+
+    protected $isApiRequest = false;
+
+    public function __construct($options = null)
+    {
+        parent::__construct($options);
+
+        $this->setMethod('post');
+        $this->getActionFromRequest()
+            ->createIdElement()
+            ->regenerateCsrfToken()
+            ->setPreferredDecorators();
+    }
+
+    protected function getActionFromRequest()
+    {
+        $this->setAction(Url::fromRequest());
+        return $this;
+    }
+
+    protected function setPreferredDecorators()
+    {
+        $this->setAttrib('class', 'autofocus icinga-controls');
+        $this->setDecorators(
+            array(
+                'Description',
+                array('FormErrors', array('onlyCustomFormErrors' => true)),
+                'FormElements',
+                'Form'
+            )
+        );
+
+        return $this;
+    }
+
+    protected function addSubmitButtonIfSet()
+    {
+        if (false === ($label = $this->getSubmitLabel())) {
+            return;
+        }
+
+        if ($this->submitButtonName && $el = $this->getElement($this->submitButtonName)) {
+            return;
+        }
+
+        $el = $this->createElement('submit', $label)
+            ->setLabel($label)
+            ->setDecorators(array('ViewHelper'));
+        $this->submitButtonName = $el->getName();
+        $this->addElement($el);
+
+        $fakeEl = $this->createElement('submit', '_FAKE_SUBMIT')
+            ->setLabel($label)
+            ->setDecorators(array('ViewHelper'));
+        $this->fakeSubmitButtonName = $fakeEl->getName();
+        $this->addElement($fakeEl);
+
+        $this->addDisplayGroup(
+            array($this->fakeSubmitButtonName),
+            'fake_button',
+            array(
+                'decorators' => array('FormElements'),
+                'order' => 1,
+            )
+        );
+
+        $grp = array(
+            $this->submitButtonName,
+            $this->deleteButtonName
+        );
+        $this->addDisplayGroup($grp, 'buttons', array(
+            'decorators' => array(
+                'FormElements',
+                array('HtmlTag', array('tag' => 'dl')),
+                'DtDdWrapper',
+            ),
+            'order' => 1000,
+        ));
+    }
+
+    protected function addSimpleDisplayGroup($elements, $name, $options)
+    {
+        if (! array_key_exists('decorators', $options)) {
+            $options['decorators'] = array(
+                'FormElements',
+                array('HtmlTag', array('tag' => 'dl')),
+                'Fieldset',
+            );
+        }
+
+        return $this->addDisplayGroup($elements, $name, $options);
+    }
+
+    protected function createIdElement()
+    {
+        $this->detectName();
+        $this->addHidden(self::ID, $this->getName());
+        $this->getElement(self::ID)->setIgnore(true);
+        return $this;
+    }
+
+    public function getSentValue($name, $default = null)
+    {
+        $request = $this->getRequest();
+        if ($request->isPost() && $this->hasBeenSent()) {
+            return $request->getPost($name);
+        } else {
+            return $default;
+        }
+    }
+
+    public function getSubmitLabel()
+    {
+        if ($this->submitLabel === null) {
+            return $this->translate('Submit');
+        }
+
+        return $this->submitLabel;
+    }
+
+    public function setSubmitLabel($label)
+    {
+        $this->submitLabel = $label;
+        return $this;
+    }
+
+    public function setApiRequest($isApiRequest = true)
+    {
+        $this->isApiRequest = $isApiRequest;
+        return $this;
+    }
+
+    public function isApiRequest()
+    {
+        return $this->isApiRequest;
+    }
+
+    public function regenerateCsrfToken()
+    {
+        if (! $element = $this->getElement(self::CSRF)) {
+            $this->addHidden(self::CSRF, CsrfToken::generate());
+            $element = $this->getElement(self::CSRF);
+        }
+        $element->setIgnore(true);
+
+        return $this;
+    }
+
+    public function removeCsrfToken()
+    {
+        $this->removeElement(self::CSRF);
+        return $this;
+    }
+
+    public function setSuccessUrl($url, $params = null)
+    {
+        if (! $url instanceof Url) {
+            $url = Url::fromPath($url);
+        }
+        if ($params !== null) {
+            $url->setParams($params);
+        }
+        $this->successUrl = $url;
+        return $this;
+    }
+
+    public function getSuccessUrl()
+    {
+        $url = $this->successUrl ?: $this->getAction();
+        if (! $url instanceof Url) {
+            $url = Url::fromPath($url);
+        }
+
+        return $url;
+    }
+
+    protected function beforeSetup()
+    {
+    }
+
+    public function setup()
+    {
+    }
+
+    protected function onSetup()
+    {
+    }
+
+    /**
+     * @param $action string|Url
+     * @return $this
+     */
+    public function setAction($action)
+    {
+        if ($action instanceof Url) {
+            $action = $action->getAbsoluteUrl('&');
+        }
+
+        return parent::setAction($action);
+    }
+
+    public function hasBeenSubmitted()
+    {
+        if ($this->hasBeenSubmitted === null) {
+            $req = $this->getRequest();
+            if ($req->isPost()) {
+                if (! $this->hasSubmitButton()) {
+                    return $this->hasBeenSubmitted = $this->hasBeenSent();
+                }
+
+                $this->hasBeenSubmitted = $this->pressedButton(
+                    $this->fakeSubmitButtonName,
+                    $this->getSubmitLabel()
+                ) || $this->pressedButton(
+                    $this->submitButtonName,
+                    $this->getSubmitLabel()
+                );
+            } else {
+                $this->hasBeenSubmitted = false;
+            }
+        }
+
+        return $this->hasBeenSubmitted;
+    }
+
+    protected function hasSubmitButton()
+    {
+        return $this->submitButtonName !== null;
+    }
+
+    protected function pressedButton($name, $label)
+    {
+        $req = $this->getRequest();
+        if (! $req->isPost()) {
+            return false;
+        }
+
+        $req = $this->getRequest();
+        $post = $req->getPost();
+
+        return array_key_exists($name, $post)
+            && $post[$name] === $label;
+    }
+
+    protected function beforeValidation($data = array())
+    {
+    }
+
+    public function prepareElements()
+    {
+        if (! $this->didSetup) {
+            $this->beforeSetup();
+            $this->setup();
+            $this->addSubmitButtonIfSet();
+            $this->onSetup();
+            $this->didSetup = true;
+        }
+
+        return $this;
+    }
+
+    public function handleRequest(Request $request = null)
+    {
+        if ($request === null) {
+            $request = $this->getRequest();
+        } else {
+            $this->setRequest($request);
+        }
+
+        $this->prepareElements();
+
+        if ($this->hasBeenSent()) {
+            $post = $request->getPost();
+            if ($this->hasBeenSubmitted()) {
+                $this->beforeValidation($post);
+                if ($this->isValid($post)) {
+                    try {
+                        $this->onSuccess();
+                    } catch (Exception $e) {
+                        $this->addException($e);
+                        $this->onFailure();
+                    }
+                } else {
+                    $this->onFailure();
+                }
+            } else {
+                $this->setDefaults($post);
+            }
+        } else {
+            // Well...
+        }
+
+        return $this;
+    }
+
+    public function addException(Exception $e, $elementName = null)
+    {
+        $file = preg_split('/[\/\\\]/', $e->getFile(), -1, PREG_SPLIT_NO_EMPTY);
+        $file = array_pop($file);
+        $msg = sprintf(
+            '%s (%s:%d)',
+            $e->getMessage(),
+            $file,
+            $e->getLine()
+        );
+
+        if ($el = $this->getElement($elementName)) {
+            $el->addError($msg);
+        } else {
+            $this->addError($msg);
+        }
+    }
+
+    public function onSuccess()
+    {
+        $this->redirectOnSuccess();
+    }
+
+    public function setSuccessMessage($message)
+    {
+        $this->successMessage = $message;
+        return $this;
+    }
+
+    public function getSuccessMessage($message = null)
+    {
+        if ($message !== null) {
+            return $message;
+        }
+        if ($this->successMessage === null) {
+            return t('Form has successfully been sent');
+        }
+        return $this->successMessage;
+    }
+
+    public function redirectOnSuccess($message = null)
+    {
+        if ($this->isApiRequest()) {
+            // TODO: Set the status line message?
+            $this->successMessage = $this->getSuccessMessage($message);
+            return;
+        }
+
+        $url = $this->getSuccessUrl();
+        $this->notifySuccess($this->getSuccessMessage($message));
+        $this->redirectAndExit($url);
+    }
+
+    public function onFailure()
+    {
+    }
+
+    public function notifySuccess($message = null)
+    {
+        if ($message === null) {
+            $message = t('Form has successfully been sent');
+        }
+        Notification::success($message);
+        return $this;
+    }
+
+    public function notifyError($message)
+    {
+        Notification::error($message);
+        return $this;
+    }
+
+    protected function redirectAndExit($url)
+    {
+        /** @var Web $app */
+        $app = Icinga::app();
+        /** @var Response $response */
+        $response = $app->getFrontController()->getResponse();
+        $response->redirectAndExit($url);
+    }
+
+    protected function setHttpResponseCode($code)
+    {
+        /** @var Web $app */
+        $app = Icinga::app();
+        $app->getFrontController()->getResponse()->setHttpResponseCode($code);
+        return $this;
+    }
+
+    protected function onRequest()
+    {
+    }
+
+    public function setRequest(Request $request)
+    {
+        if ($this->request !== null) {
+            throw new ProgrammingError('Unable to set request twice');
+        }
+
+        $this->request = $request;
+        $this->prepareElements();
+        $this->onRequest();
+        return $this;
+    }
+
+    /**
+     * @return Request
+     */
+    public function getRequest()
+    {
+        if ($this->request === null) {
+            /** @var Web $app */
+            $app = Icinga::app();
+            /** @var Request $request */
+            $request = $app->getFrontController()->getRequest();
+            $this->setRequest($request);
+        }
+        return $this->request;
+    }
+
+    public function hasBeenSent()
+    {
+        if ($this->hasBeenSent === null) {
+            if ($this->request === null) {
+                /** @var Web $app */
+                $app = Icinga::app();
+                $req = $app->getFrontController()->getRequest();
+            } else {
+                $req = $this->request;
+            }
+
+            /** @var Request $req */
+            if ($req->isPost()) {
+                $post = $req->getPost();
+                $this->hasBeenSent = array_key_exists(self::ID, $post) &&
+                    $post[self::ID] === $this->getName();
+            } else {
+                $this->hasBeenSent = false;
+            }
+        }
+
+        return $this->hasBeenSent;
+    }
+
+    protected function detectName()
+    {
+        if ($this->formName !== null) {
+            $this->setName($this->formName);
+        } else {
+            $this->setName(get_class($this));
+        }
+    }
+}
diff --git a/library/Businessprocess/Web/Form/Validator/HostServiceTermValidator.php b/library/Businessprocess/Web/Form/Validator/HostServiceTermValidator.php
new file mode 100644
index 0000000..58249f7
--- /dev/null
+++ b/library/Businessprocess/Web/Form/Validator/HostServiceTermValidator.php
@@ -0,0 +1,96 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Form\Validator;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\ServiceNode;
+use Icinga\Module\Businessprocess\State\IcingaDbState;
+use Icinga\Module\Businessprocess\State\MonitoringState;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+use ipl\I18n\Translation;
+use ipl\Validator\BaseValidator;
+use ipl\Web\FormElement\TermInput\Term;
+use LogicException;
+
+class HostServiceTermValidator extends BaseValidator
+{
+    use Translation;
+
+    /** @var ?BpNode */
+    protected $parent;
+
+    /**
+     * Set the affected process
+     *
+     * @param BpNode $parent
+     *
+     * @return $this
+     */
+    public function setParent(BpNode $parent): self
+    {
+        $this->parent = $parent;
+
+        return $this;
+    }
+
+    public function isValid($terms)
+    {
+        if ($this->parent === null) {
+            throw new LogicException('Missing parent process. Cannot validate terms.');
+        }
+
+        if (! is_array($terms)) {
+            $terms = [$terms];
+        }
+
+        $isValid = true;
+        $testConfig = new BpConfig();
+
+        foreach ($terms as $term) {
+            /** @var Term $term */
+            [$hostName, $serviceName] = BpConfig::splitNodeName($term->getSearchValue());
+            if ($serviceName !== null && $serviceName !== 'Hoststatus') {
+                $node = $testConfig->createService($hostName, $serviceName);
+            } else {
+                $node = $testConfig->createHost($hostName);
+                if ($serviceName === null) {
+                    $term->setSearchValue(BpConfig::joinNodeName($hostName, 'Hoststatus'));
+                }
+            }
+
+            if ($this->parent->hasChild($term->getSearchValue())) {
+                $term->setMessage($this->translate('Already defined in this process'));
+                $isValid = false;
+            } else {
+                $testConfig->getNode('__unbound__')
+                    ->addChild($node);
+            }
+        }
+
+        if ($this->parent->getBpConfig()->getBackend() instanceof MonitoringBackend) {
+            MonitoringState::apply($testConfig);
+        } else {
+            IcingaDbState::apply($testConfig);
+        }
+
+        foreach ($terms as $term) {
+            /** @var Term $term */
+            $node = $testConfig->getNode($term->getSearchValue());
+            if ($node->isMissing()) {
+                if ($node instanceof ServiceNode) {
+                    $term->setMessage($this->translate('Service not found'));
+                } else {
+                    $term->setMessage($this->translate('Host not found'));
+                }
+
+                $isValid = false;
+            } else {
+                $term->setLabel($node->getAlias());
+                $term->setClass($node->getObjectClassName());
+            }
+        }
+
+        return $isValid;
+    }
+}
diff --git a/library/Businessprocess/Web/Navigation/Renderer/ProcessProblemsBadge.php b/library/Businessprocess/Web/Navigation/Renderer/ProcessProblemsBadge.php
new file mode 100644
index 0000000..575dc5e
--- /dev/null
+++ b/library/Businessprocess/Web/Navigation/Renderer/ProcessProblemsBadge.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Navigation\Renderer;
+
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+use Icinga\Web\Navigation\Renderer\BadgeNavigationItemRenderer;
+
+class ProcessProblemsBadge extends BadgeNavigationItemRenderer
+{
+    /**
+     * Cached count
+     *
+     * @var int
+     */
+    protected $count;
+
+    /** @var string */
+    private $bpConfigName;
+
+    public function getCount()
+    {
+        $count = 0;
+        if ($this->count === null) {
+            $storage = LegacyStorage::getInstance();
+            $bp = $storage->loadProcess($this->getBpConfigName());
+            foreach ($bp->getRootNodes() as $rootNode) {
+                if (! $rootNode->isEmpty() &&
+                    $rootNode->getState() !== $rootNode::ICINGA_PENDING
+                    && $rootNode->hasProblems()) {
+                    $count++;
+                }
+            }
+
+            $this->count = $count;
+            $this->setState(self::STATE_CRITICAL);
+        }
+
+        if ($count) {
+            $this->setTitle(sprintf(
+                tp('One unhandled root node critical', '%d unhandled root nodes critical', $count),
+                $count
+            ));
+        }
+
+        return $this->count;
+    }
+
+    public function setBpConfigName($bpConfigName)
+    {
+        $this->bpConfigName = $bpConfigName;
+
+        return $this;
+    }
+
+    public function getBpConfigName()
+    {
+        return $this->bpConfigName;
+    }
+}
diff --git a/library/Businessprocess/Web/Navigation/Renderer/ProcessesProblemsBadge.php b/library/Businessprocess/Web/Navigation/Renderer/ProcessesProblemsBadge.php
new file mode 100644
index 0000000..dd419a2
--- /dev/null
+++ b/library/Businessprocess/Web/Navigation/Renderer/ProcessesProblemsBadge.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web\Navigation\Renderer;
+
+use Icinga\Application\Modules\Module;
+use Icinga\Module\Businessprocess\ProvidedHook\Icingadb\IcingadbSupport;
+use Icinga\Module\Businessprocess\State\IcingaDbState;
+use Icinga\Module\Businessprocess\State\MonitoringState;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+use Icinga\Web\Navigation\Renderer\BadgeNavigationItemRenderer;
+
+class ProcessesProblemsBadge extends BadgeNavigationItemRenderer
+{
+    /**
+     * Cached count
+     *
+     * @var int
+     */
+    protected $count;
+
+    public function getCount()
+    {
+        if ($this->count === null) {
+            $storage = LegacyStorage::getInstance();
+            $count = 0;
+
+            foreach ($storage->listProcessNames() as $processName) {
+                $bp = $storage->loadProcess($processName);
+                if (Module::exists('icingadb') &&
+                    (! $bp->hasBackendName() && IcingadbSupport::useIcingaDbAsBackend())
+                ) {
+                    IcingaDbState::apply($bp);
+                } else {
+                    MonitoringState::apply($bp);
+                }
+
+                foreach ($bp->getRootNodes() as $rootNode) {
+                    if (! $rootNode->isEmpty() &&
+                        $rootNode->getState() !== $rootNode::ICINGA_PENDING
+                        && $rootNode->hasProblems()) {
+                        $count++;
+                        break;
+                    }
+                }
+            }
+
+            $this->count = $count;
+            $this->setState(self::STATE_CRITICAL);
+        }
+
+        return $this->count;
+    }
+}
diff --git a/library/Businessprocess/Web/Url.php b/library/Businessprocess/Web/Url.php
new file mode 100644
index 0000000..92b1e85
--- /dev/null
+++ b/library/Businessprocess/Web/Url.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Web;
+
+use Icinga\Application\Icinga;
+use Icinga\Application\Web;
+use Icinga\Web\Request;
+use Icinga\Web\Url as WebUrl;
+
+/**
+ * Class Url
+ *
+ * The main purpose of this class is to get unit tests running on CLI
+ *
+ * @package Icinga\Module\Businessprocess\Web
+ */
+class Url extends WebUrl
+{
+    /**
+     * @return FakeRequest|Request
+     */
+    protected static function getRequest()
+    {
+        $app = Icinga::app();
+        if ($app->isCli()) {
+            return new FakeRequest();
+        }
+
+        /** @var Web $app */
+        return $app->getRequest();
+    }
+}
diff --git a/module.info b/module.info
new file mode 100644
index 0000000..c492473
--- /dev/null
+++ b/module.info
@@ -0,0 +1,16 @@
+Name: Businessprocess
+Version: 2.5.0
+Requires:
+  Libraries: icinga-php-library (>=0.13.0), icinga-php-thirdparty (>=0.12.0)
+  Modules: monitoring (>=2.9.0), icingadb (>=1.1.0)
+Description: A Business Process viewer and modeler
+ Provides a web-based process modeler for Icinga. It integrates as a module
+ into Icinga Web 2 and provides a plugin check command for Icinga. Tile and tree
+ views can be shown inline, as dashlets or fullscreen. All of those for whole
+ processes or just parts of them.
+
+ Hooks into the monitoring or icingadb module to show Business Impact for a
+ specific host or service and provides a Business Impact Simulation mode to
+ visualize the influence of a potential outage.
+
+ Supports legacy BPaddon config files.
diff --git a/phpcs.xml b/phpcs.xml
new file mode 100644
index 0000000..d5b9ebc
--- /dev/null
+++ b/phpcs.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<ruleset name="PHP_CodeSniffer">
+    <description>Sniff our code a while</description>
+
+    <file>configuration.php</file>
+    <file>run.php</file>
+    <file>application/</file>
+    <file>library/</file>
+    <file>test/</file>
+
+    <exclude-pattern>vendor/*</exclude-pattern>
+
+    <arg value="wps"/>
+    <arg name="colors"/>
+    <arg name="report-width" value="auto"/>
+    <arg name="report-full"/>
+    <arg name="report-gitblame"/>
+    <arg name="report-summary"/>
+    <arg name="encoding" value="UTF-8"/>
+
+    <rule ref="PSR2"/>
+    <rule ref="PSR2.Methods.MethodDeclaration.Underscore">
+        <exclude-pattern>library/Businessprocess/Web/Form/Element/Multiselect.php</exclude-pattern>
+    </rule>
+</ruleset>
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
new file mode 100644
index 0000000..cd648b9
--- /dev/null
+++ b/phpstan-baseline.neon
@@ -0,0 +1,4476 @@
+parameters:
+	ignoreErrors:
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\CheckCommand\\:\\:listActions\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/CheckCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\CheckCommand\\:\\:processAction\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/CheckCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\CleanupCommand\\:\\:init\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/CleanupCommand.php
+
+		-
+			message: "#^Parameter \\#1 \\$name of method Icinga\\\\Module\\\\Businessprocess\\\\BpConfig\\:\\:getNode\\(\\) expects string, int\\|string given\\.$#"
+			count: 1
+			path: application/clicommands/CleanupCommand.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\CleanupCommand\\:\\:\\$defaultActionName has no type specified\\.$#"
+			count: 1
+			path: application/clicommands/CleanupCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:checkAction\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:getFirstProcessName\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:init\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:listAction\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:listBpNames\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:listConfigNames\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:listConfigNames\\(\\) has parameter \\$withTitle with no type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:renderProblemTree\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:renderProblemTree\\(\\) has parameter \\$depth with no type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:renderProblemTree\\(\\) has parameter \\$tree with no type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:renderProblemTree\\(\\) has parameter \\$useColors with no type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Parameter \\#1 \\$name of method Icinga\\\\Module\\\\Businessprocess\\\\BpConfig\\:\\:getNode\\(\\) expects string, mixed given\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Parameter \\#1 \\$rootCause of method Icinga\\\\Module\\\\Businessprocess\\\\BpNode\\:\\:getProblemTreeBlame\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:\\$hostColors has no type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Clicommands\\\\ProcessCommand\\:\\:\\$serviceColors has no type specified\\.$#"
+			count: 1
+			path: application/clicommands/ProcessCommand.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Controllers\\\\HostController\\:\\:moduleInit\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/controllers/HostController.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Controllers\\\\HostController\\:\\:showAction\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/controllers/HostController.php
+
+		-
+			message: "#^Parameter \\#2 \\$value of method Icinga\\\\Web\\\\UrlParams\\:\\:add\\(\\) expects bool\\|string, mixed given\\.$#"
+			count: 1
+			path: application/controllers/HostController.php
+
+		-
+			message: "#^Parameter \\#2 \\$value of static method ipl\\\\Stdlib\\\\Filter\\:\\:equal\\(\\) expects array\\|bool\\|float\\|int\\|string, mixed given\\.$#"
+			count: 1
+			path: application/controllers/HostController.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Controllers\\\\IndexController\\:\\:indexAction\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/controllers/IndexController.php
+
+		-
+			message: "#^Binary operation \"\\+\" between int\\|string and 1 results in an error\\.$#"
+			count: 1
+			path: application/controllers/NodeController.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Controllers\\\\NodeController\\:\\:impactAction\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: application/controllers/NodeController.php
+
+		-
+			message: "#^Parameter \\#1 \\$name of method Icinga\\\\Module\\\\Businessprocess\\\\BpConfig\\:\\:getNode\\(\\) expects string, mixed given\\.$#"
+			count: 1
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+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:prepareElements\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:pressedButton\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:pressedButton\\(\\) has parameter \\$label with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:pressedButton\\(\\) has parameter \\$name with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:redirectAndExit\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:redirectAndExit\\(\\) has parameter \\$url with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:redirectOnSuccess\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:redirectOnSuccess\\(\\) has parameter \\$message with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:regenerateCsrfToken\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:removeCsrfToken\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setApiRequest\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setApiRequest\\(\\) has parameter \\$isApiRequest with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setHttpResponseCode\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setHttpResponseCode\\(\\) has parameter \\$code with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setPreferredDecorators\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setRequest\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setSubmitLabel\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setSubmitLabel\\(\\) has parameter \\$label with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setSuccessMessage\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setSuccessMessage\\(\\) has parameter \\$message with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setSuccessUrl\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setSuccessUrl\\(\\) has parameter \\$params with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setSuccessUrl\\(\\) has parameter \\$url with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:setup\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Parameter \\#1 \\$array of function array_pop expects array, array\\<int, string\\>\\|false given\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$deleteButtonName has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$didSetup has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$fakeSubmitButtonName has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$formName has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$hasBeenSent has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$hasBeenSubmitted has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$isApiRequest has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$request has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$submitButtonName has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$submitLabel has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Property Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Form\\\\QuickForm\\:\\:\\$successMessage has no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/QuickForm.php
+
+		-
+			message: "#^Call to an undefined method Icinga\\\\Module\\\\Businessprocess\\\\BpNode\\|Icinga\\\\Module\\\\Businessprocess\\\\MonitoredNode\\:\\:addChild\\(\\)\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/Validator/HostServiceTermValidator.php
+
+		-
+			message: "#^Parameter \\#1 \\$label of method ipl\\\\Web\\\\FormElement\\\\TermInput\\\\Term\\:\\:setLabel\\(\\) expects string, string\\|null given\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Form/Validator/HostServiceTermValidator.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Navigation\\\\Renderer\\\\ProcessProblemsBadge\\:\\:getBpConfigName\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Navigation/Renderer/ProcessProblemsBadge.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Navigation\\\\Renderer\\\\ProcessProblemsBadge\\:\\:setBpConfigName\\(\\) has no return type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Navigation/Renderer/ProcessProblemsBadge.php
+
+		-
+			message: "#^Method Icinga\\\\Module\\\\Businessprocess\\\\Web\\\\Navigation\\\\Renderer\\\\ProcessProblemsBadge\\:\\:setBpConfigName\\(\\) has parameter \\$bpConfigName with no type specified\\.$#"
+			count: 1
+			path: library/Businessprocess/Web/Navigation/Renderer/ProcessProblemsBadge.php
diff --git a/phpstan.neon b/phpstan.neon
new file mode 100644
index 0000000..8c09b51
--- /dev/null
+++ b/phpstan.neon
@@ -0,0 +1,31 @@
+includes:
+	- phpstan-baseline.neon
+
+parameters:
+    level: max
+
+    checkFunctionNameCase: true
+    checkInternalClassCaseSensitivity: true
+    treatPhpDocTypesAsCertain: false
+
+    paths:
+        - application
+        - library
+
+    scanDirectories:
+        - vendor
+
+    excludePaths:
+        - library/Businessprocess/Test
+
+    ignoreErrors:
+        -
+            messages:
+                - '#Unsafe usage of new static\(\)#'
+                - '#. but return statement is missing#'
+            reportUnmatched: false
+
+    universalObjectCratesClasses:
+        - Icinga\Web\View
+        - ipl\Orm\Model
+        - Icinga\Module\Monitoring\Object\MonitoredObject
diff --git a/phpunit.xml b/phpunit.xml
new file mode 100644
index 0000000..5eaf639
--- /dev/null
+++ b/phpunit.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         bootstrap="test/bootstrap.php"
+    >
+    <testsuites>
+        <testsuite name="Businessprocess PHP Unit tests">
+            <directory suffix=".php">test/php</directory>
+        </testsuite>
+    </testsuites>
+    <filter>
+        <whitelist processUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">library/Businessprocess</directory>
+            <exclude>
+                <directory suffix=".php">library/Businessprocess/Director</directory>
+            </exclude>
+            <exclude>
+                <directory suffix=".php">library/Businessprocess/ProvidedHook</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>
diff --git a/public/css/module.less b/public/css/module.less
new file mode 100644
index 0000000..f048863
--- /dev/null
+++ b/public/css/module.less
@@ -0,0 +1,996 @@
+a:focus {
+    outline: none;
+    text-decoration: underline;
+    &::before {
+        text-decoration: none;
+    }
+}
+
+.action-bar {
+    float: left;
+    display: flex;
+    align-items: center;
+    font-size: 1.3em;
+    color: @icinga-blue;
+
+    > a {
+        &:hover::before {
+            text-decoration: none;
+        }
+
+        &:not(:last-child) {
+            margin-right: 1em;
+        }
+
+        &.button-link {
+            color: @text-color-on-icinga-blue;
+            background: @icinga-blue;
+
+            &:active, &:focus {
+                text-decoration: none;
+            }
+
+            &:last-child {
+                margin-left: auto;
+            }
+        }
+    }
+
+    > div.view-toggle {
+        margin-right: 1em;
+
+        span {
+            color: @gray;
+            margin-right: .5em;
+        }
+
+        a {
+            display: inline-block;
+
+            i {
+                padding: .25em .5em;
+                border: 1px solid @icinga-blue;
+
+                &:before {
+                    margin-right: 0;
+                }
+
+                &.active {
+                    color: @text-color-on-icinga-blue;
+                    background-color: @icinga-blue;
+                }
+
+                &:first-of-type {
+                    border-top-left-radius: .25em;
+                    border-bottom-left-radius: .25em;
+                }
+                &:last-of-type {
+                    border-top-right-radius: .25em;
+                    border-bottom-right-radius: .25em;
+                }
+            }
+        }
+    }
+
+    span.disabled {
+        color: @gray;
+    }
+}
+
+.controls {
+    &.sort-control,
+    &.want-fullscreen > a {
+        float: right;
+    }
+}
+
+form a {
+    color: @icinga-blue;
+}
+
+div.bp {
+  margin-bottom: 4px;
+}
+
+div.bp.sortable > .sortable-ghost {
+    opacity: 0.5;
+}
+
+
+/* TreeView */
+
+@vertical-tree-item-gap: .5em;
+
+ul.bp {
+    margin: 0;
+    padding: 0;
+    list-style-type: none;
+
+    .action-link {
+        font-size: 1.3em;
+        line-height: 1;
+    }
+
+    // cursors!!!1
+    &:not([data-sortable-disabled="true"]) {
+        .movable {
+            cursor: grab;
+
+            &.sortable-chosen {
+                cursor: grabbing;
+            }
+        }
+
+        &.progress .movable {
+            cursor: wait;
+        }
+    }
+    &[data-sortable-disabled="true"] {
+        li.process summary {
+            cursor: pointer;
+        }
+    }
+
+    li {
+        > .icon,
+        summary > .icon {
+            opacity: .75;
+        }
+
+        span.state-ball ~ i:last-of-type {
+            margin-right: 0;
+        }
+    }
+
+    // ghost style
+    &.sortable > li.sortable-ghost {
+        > details {
+            position: relative;
+            overflow: hidden;
+            max-height: 30em;
+            background-color: @gray-lighter;
+            border: .2em dotted @gray-light;
+            border-left-width: 0;
+            border-right-width: 0;
+        }
+
+        &.process > .details:after {
+            // TODO: Only apply if content overflows?
+            content: " ";
+            position: absolute;
+            right: 0;
+            bottom: 0;
+            left: 0;
+            height: 50%;
+            background: linear-gradient(transparent, @body-bg-color);
+        }
+    }
+
+    // header style
+    li.process summary {
+        padding: .291666667em 0;
+        border-bottom: 1px solid @gray-light;
+        user-select: none;
+
+        > .icon:nth-child(1),
+        > .icon:nth-child(2) {
+            min-width: 1.3em; // So that process icons align with their node's icons
+            color: @gray;
+        }
+
+        > span {
+            font-size: 1.25em;
+
+            &.op {
+                padding: .1em .5em;
+                border-radius: .5em;
+                background-color: @gray-semilight;
+                font-weight: bold;
+                font-size: 1em;
+                color: @text-color-on-icinga-blue;
+            }
+        }
+    }
+
+    li.process.sortable-ghost details:not([open]) > summary {
+        border-bottom: none;
+    }
+
+    // TODO: Remove once support for Icinga Web 2.10.x is dropped
+    li.process details:not(.collapsible) {
+        &[open] > summary .expand-icon {
+            display: none;
+        }
+
+        &:not([open]) > summary .collapse-icon {
+            display: none;
+        }
+    }
+
+    // subprocess style
+    li.process > details ul {
+        padding-left: 2em;
+        list-style-type: none;
+
+        &.sortable {
+            min-height: 1em; // Required to be able to move items back to an otherwise empty list
+        }
+    }
+
+    // vertical layout
+    > li {
+        padding: @vertical-tree-item-gap 0;
+
+        &:first-child {
+            margin-top: @vertical-tree-item-gap;
+        }
+
+        &.process {
+            padding-bottom: 0;
+
+            &:first-child {
+                margin-top: 0;
+                padding-top: 0;
+            }
+        }
+    }
+
+    // horizontal layout
+    li.process summary,
+    li:not(.process) {
+        display: flex;
+        align-items: center;
+        padding-left: .25em;
+
+        > * {
+            margin-right: .5em;
+        }
+
+        > :not(.overridden-state) + a.action-link {
+            margin-left: auto; // Let the first action link move everything to the right
+
+            & + a.action-link {
+                margin-left: 0; // But really only the first one
+            }
+        }
+
+        .overridden-state {
+            margin-left: auto;
+            margin-right: 1em;
+
+            i.icon {
+                font-size: 0.75em;
+                line-height: 0.08333em;
+                vertical-align: 0.125em;
+
+                &::before {
+                    margin: 0 .3em;
+                }
+            }
+        }
+    }
+
+    // collapse handling
+    li.process details:not([open]) {
+        margin-bottom: (@vertical-tree-item-gap * 2);
+
+        > ul.bp {
+            display: none;
+        }
+    }
+
+    // hover style
+    li.process:hover summary {
+        background-color: @tr-active-color;
+    }
+    li:not(.process):hover {
+        background-color: @tr-active-color;
+    }
+
+    li.process summary > .state-ball,
+    li:not(.process) > .state-ball {
+        border: .15em solid @body-bg-color;
+
+        &.size-s {
+            width: 7em/6em;
+            height: 7em/6em;
+            line-height: 7em/6em;
+        }
+    }
+}
+
+// ** Node inspect broken files **/
+ul.broken-files {
+    .rounded-corners();
+    padding: 1em;
+    margin: 1em 0;
+    border: 2px solid @state-warning;
+    font-size: 1.25em;
+    list-style: none;
+
+    li {
+        padding-left: 1em;
+        font-weight: bold;
+    }
+}
+// ** END Node inspect broken files **/
+
+/** BEGIN Dashboard **/
+.overview-dashboard {
+    .header {
+        font-weight: bold;
+        display: block;
+        font-size: 1.25em;
+    }
+
+    i {
+        float: left;
+        font-size: 2.5em;
+        margin-top: -0.1em;
+        margin-bottom: 2em;
+        color: inherit;
+    }
+
+    .bp-root-tiles {
+        margin-left: 3em;
+    }
+
+    .dashboard-tile {
+        cursor: pointer;
+        padding: 1em;
+
+        &:hover {
+            background-color: @tr-hover-color;
+        }
+
+        .bp-link {
+            > a {
+                text-decoration: none;
+                color: @gray;
+                vertical-align: middle;
+                word-wrap: break-word;
+                width: 100%;
+                overflow: hidden;
+
+                > span.header {
+                    color: @text-color;
+                }
+            }
+        }
+    }
+
+    .dashboard-tile,
+    div.action {
+        width: 20em;
+        display: inline-block;
+        vertical-align: top;
+    }
+
+    .action {
+        > a {
+            text-decoration: none;
+            color: @gray;
+            vertical-align: middle;
+            display: block;
+            padding: 1em;
+            word-wrap: break-word;
+            width: 100%;
+            overflow: hidden;
+            box-sizing: border-box;
+
+            &.addnew:hover {
+                background-color: @tr-hover-color;
+            }
+
+            > span.header {
+                color: @text-color;
+            }
+        }
+    }
+}
+/** END Dashboard **/
+
+// State summary badges
+.state-badges {
+    .state-badges();
+
+    &.state-badges li > ul > li:last-child {
+        margin-left: 0;
+    }
+
+    li > ul > li:first-child:not(:last-child) .state-badge {
+        border-right: 0;
+    }
+}
+
+// Node children count
+.item-count {
+    font-size: 1em;
+    text-align: center;
+    color: @text-color-inverted;
+}
+
+div.bp .state-badges {
+    display: inline-block;
+    padding-top: 0;
+}
+
+td > a > .state-badges {
+    background-color: transparent;
+}
+
+.state-badge {
+    font-size: .8em;
+    border: 1px solid @body-bg-color;
+
+    &.state-missing {
+        background: @gray-semilight;
+        color: @text-color-on-icinga-blue;
+    }
+
+    &.state-critical.handled, &.state-down.handled { background: @color-critical-handled; opacity: 1; }
+    &.state-unknown.handled { background-color: @color-unknown-handled; opacity: 1; }
+    &.state-warning.handled { background: @color-warning-handled; opacity: 1; }
+}
+
+/** END Badges **/
+
+/** BEGIN Tiles **/
+.tiles:after {
+    content:'';
+    display:block;
+    clear: both;
+}
+
+.tiles.sortable > .sortable-ghost {
+    opacity: 0.5;
+    border: .2em dashed @gray;
+}
+
+.tiles > div {
+    color: @text-color-on-icinga-blue;
+    width: 12em;
+    display: inline-block;
+    float: left;
+    vertical-align: top;
+    margin-right: 0.2em;
+    margin-bottom: 0.2em;
+    height: 6em;
+    cursor: pointer;
+    position: relative;
+
+    .item-count {
+        margin-right: .5em;
+    }
+
+    .state-badges {
+        position: absolute;
+        bottom: 0;
+        right: 0;
+        margin: 0.5em;
+        text-align: center;
+        font-size: 0.5em;
+    }
+
+    .overridden-state {
+        font-size: .75em;
+        position: absolute;
+        left: 0;
+        bottom: 0;
+        margin: .5em;
+        border: 1px solid @body-bg-color;
+    }
+
+    > a {
+        display: block;
+        text-decoration: none;
+        font-size: 0.7em;
+        text-align: center;
+        padding: 1em 1em 0;
+        font-weight: bold;
+        word-wrap: break-word;
+    }
+
+    &:hover {
+        box-shadow: 0 0 .2em @gray;
+    }
+
+    .actions {
+        opacity: 0.8;
+        margin: 0.5em 0.5em 0 0.5em;
+        font-size: 0.75em;
+        height: 1.8em;
+
+        i {
+            float: none;
+            display: block;
+            width: 100%;
+            font-size: 1em;
+            line-height: normal;
+            margin: 0;
+            padding: 0 0 0 0.25em;
+
+            &.handled-icon {
+                display: inline-block;
+                margin-top: 0.15em;
+                float: right;
+                width: 1.5em;
+                height: 1.5em;
+            }
+        }
+        a {
+            margin: 0;
+            padding: 0;
+            display: inline-block;
+            width: 1.5em;
+            height: 1.5em;
+            border-radius: 0.3em;
+        }
+
+        a:hover {
+            background-color: @body-bg-color;
+            color: @text-color;
+        }
+
+        > .node-info {
+            margin-right: 0.3em;
+            float: right;
+        }
+    }
+}
+
+.tiles.sortable:not([data-sortable-disabled="true"]) {
+    > div {
+        cursor: grab;
+
+        &.sortable-chosen {
+            cursor: grabbing;
+        }
+    }
+
+    &.progress > div {
+        cursor: wait;
+    }
+}
+
+.tiles > div.parent::before {
+    content: '&';
+    position: absolute;
+    font-size: 1.2em;
+}
+
+.tiles > div.parent {
+    width: 100%;
+    height: 2em;
+}
+
+.tiles {
+    > .critical            { background-color: @color-critical;         > a { text-shadow: 0 0 1px mix(#000, @color-critical, 40%); }}
+    > .critical.handled    { background-color: @color-critical-handled; > a { text-shadow: 0 0 1px mix(#000, @color-critical-handled, 40%); }}
+    > .down                { background-color: @color-critical;         > a { text-shadow: 0 0 1px mix(#000, @color-critical, 40%); }}
+    > .down.handled        { background-color: @color-critical-handled; > a { text-shadow: 0 0 1px mix(#000, @color-critical-handled, 40%); }}
+    > .unknown             { background-color: @color-unknown;          > a { text-shadow: 0 0 1px mix(#000, @color-unknown, 40%); }}
+    > .unknown.handled     { background-color: @color-unknown-handled;  > a { text-shadow: 0 0 1px mix(#000, @color-unknown-handled, 40%); }}
+    > .unreachable         { background-color: @color-unknown;          > a { text-shadow: 0 0 1px mix(#000, @color-unknown, 40%); }}
+    > .unreachable.handled { background-color: @color-unknown-handled;  > a { text-shadow: 0 0 1px mix(#000, @color-unknown-handled, 40%); }}
+    > .warning             { background-color: @color-warning;          > a { text-shadow: 0 0 1px mix(#000, @color-warning, 40%); }}
+    > .warning.handled     { background-color: @color-warning-handled;  > a { text-shadow: 0 0 1px mix(#000, @color-warning-handled, 40%); }}
+    > .ok                  { background-color: @color-ok;               > a { text-shadow: 0 0 1px mix(#000, @color-ok, 40%); }}
+    > .up                  { background-color: @color-ok;               > a { text-shadow: 0 0 1px mix(#000, @color-ok, 40%); }}
+    > .pending             { background-color: @color-pending;          > a { text-shadow: 0 0 1px mix(#000, @color-pending, 40%); }}
+    > .missing             { background-color: @gray-semilight;         > a { color: @text-color-on-icinga-blue; }}
+    > .empty               { background-color: @gray-semilight;         > a { color: @text-color-on-icinga-blue; }}
+}
+
+.tiles.few { font-size: 2.5em; }
+.tiles.normal { font-size: 2.1em; }
+.tiles.many { font-size: 1.8em; }
+
+#layout.twocols, #layout.layout-minimal, div.compact {
+    .tiles.few { font-size: 1.8em; }
+    .tiles.normal { font-size: 1.8em; }
+    .tiles.many { font-size: 1.8em; }
+}
+
+#layout.fullscreen-layout .controls {
+    padding: 0 1em;
+}
+
+/** END of tiles **/
+
+.content.restricted {
+    h1 {
+        font-size: 2em;
+    }
+
+    p > a {
+        margin-left: 1em;
+    }
+}
+
+/** BEGIN breadcrumb **/
+
+.breadcrumb {
+    list-style: none;
+    overflow: hidden;
+    padding: 0;
+}
+
+.breadcrumb:after {
+    content:'';
+    display:block;
+    clear: both;
+}
+.breadcrumb li {
+    float: left;
+    cursor: pointer;
+    user-select: none;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+
+}
+.breadcrumb li a {
+    color: @icinga-blue;
+    margin: 0;
+    font-size: 1.2em;
+    text-decoration: none;
+    padding-left: 2em;
+    line-height: 2.5em;
+    position: relative;
+    display: block;
+    float: left;
+    &:focus {
+        outline: none;
+    }
+
+    > .state-ball {
+        margin-right: .5em;
+        border: .15em solid @body-bg-color;
+
+        &.size-s {
+            width: 7em/6em;
+            height: 7em/6em;
+            line-height: 7em/6em;
+        }
+    }
+}
+.breadcrumb li {
+    border: 1px solid @gray-lighter;
+
+    &:first-of-type {
+        border-radius: .25em;
+    }
+
+    &:last-of-type {
+        border-radius: .25em;
+        border: 1px solid transparent;
+        background: @icinga-blue;
+        color: @text-color-on-icinga-blue;
+        padding-right: 1.2em;
+
+        a {
+            color: @text-color-on-icinga-blue;
+        }
+    }
+}
+
+.breadcrumb li:not(:last-of-type) a:before, .breadcrumb li:not(:last-of-type) a:after {
+    content: " ";
+    display: block;
+    width: 0;
+    height: 0;
+    border-top: 1.3em solid transparent;
+    border-bottom: 1.2em solid transparent;
+    position: absolute;
+    margin-top: -1.2em;
+    top: 50%;
+    left: 100%;
+}
+
+.breadcrumb li:not(:last-of-type) a:before {
+    border-left: 1.2em solid @gray-lighter;
+    margin-left: 1px;
+    z-index: 1;
+}
+
+.breadcrumb li:not(:last-of-type) a:after {
+    border-left: 1.2em solid @body-bg-color;
+    z-index: 2;
+}
+
+&.impact {
+    .breadcrumb li:not(:last-of-type) a:after {
+        .transition(border-left-color 2s 0.66s linear ~'!important');
+        border-left-color: @gray-lighter;
+    }
+
+    .breadcrumb li:not(:last-of-type) a:before {
+        .transition(border-left-color 2s 1s linear ~'!important');
+        border-left-color: @gray-light;
+    }
+
+    .breadcrumb li:not(:last-of-type) {
+        .transition(border-color 2s 1s linear ~'!important');
+        border-color: @gray-light;
+    }
+    .breadcrumb li:not(:last-of-type) a:hover {
+        background-color: transparent !important;
+        color: @icinga-blue;
+    }
+}
+
+.tabs > .dropdown-nav-item > ul {
+    z-index: 100;
+}
+
+.breadcrumb li:first-child a {
+    padding-left: 1em;
+    padding-right: 0.5em;
+}
+
+.breadcrumb li:not(:last-child) a:hover { background: @icinga-blue; color: @text-color-on-icinga-blue; }
+.breadcrumb li:not(:last-child) a:hover:after { border-left-color: @icinga-blue; }
+.breadcrumb li:last-child:hover, .breadcrumb li:last-child a:hover { background: @icinga-blue; border-color: @icinga-blue; }
+
+.breadcrumb li a:focus {
+    text-decoration: underline;
+}
+
+#layout.twocols, #layout.layout-minimal, div.compact {
+    .breadcrumb {
+        font-size: 0.833em;
+    }
+}
+
+/** END of breadcrumb **/
+
+
+ul.error, ul.warning {
+    padding: 0;
+    list-style-type: none;
+    background-color: @color-critical;
+
+    li {
+        font-weight: bold;
+        color: @text-color-on-icinga-blue;
+        padding: 0.3em 0.8em;
+    }
+
+    li a,
+    li .link-button {
+        color: inherit;
+        text-decoration: underline;
+
+        &:hover {
+            text-decoration: none;
+        }
+    }
+}
+
+
+ul.warning {
+    background-color: @color-warning;
+}
+
+table.sourcecode {
+    font-family: monospace;
+    white-space: pre-wrap;
+
+    th {
+        vertical-align: top;
+        padding-right: 0.5em;
+        user-select: none;
+        -moz-user-select: none;
+        -o-user-select: none;
+        -ms-user-select: none;
+        -webkit-user-select: none;
+        font-weight: bold;
+    }
+    td {
+        vertical-align: top;
+    }
+}
+
+/** Forms stolen from director **/
+.content form {
+    margin-bottom: 2em;
+}
+
+.content form.inline {
+    margin: 0;
+}
+
+.invisible {
+    position: absolute;
+    left: -100%;
+}
+
+form.bp-form {
+    input[type=file] {
+        padding-right: 1em;
+    }
+
+    input[type=submit]:first-of-type {
+        border-width: 2px;
+    }
+
+    p.description {
+        padding: 1em 1em;
+        margin: 0;
+        font-style: italic;
+        width: 100%;
+    }
+
+    ul.form-errors {
+        margin-bottom: 0.5em;
+
+        ul.errors li {
+            background: @color-critical;
+            font-weight: bold;
+            padding: 0.5em 1em;
+            color: @text-color-on-icinga-blue;
+        }
+    }
+
+    input[type=text], input[type=password], input[type=file], textarea, select {
+        max-width: 36em;
+        min-width: 20em;
+        width: 100%;
+    }
+
+    label {
+        line-height: 2em;
+    }
+
+    dl {
+        margin: 0;
+        padding: 0;
+    }
+
+    select option {
+        padding-left: 0.5em;
+    }
+
+    dt label {
+        width: auto;
+        font-weight: normal;
+        font-size: inherit;
+
+        &.required {
+            &::after {
+                content: '*'
+            }
+        }
+
+        &:hover {
+            text-decoration: underline;
+            cursor: pointer;
+        }
+    }
+
+    fieldset {
+        min-width: 36em;
+    }
+
+    dd input.related-action[type='submit'] {
+        display: none;
+    }
+
+    dd.active li.active input.related-action[type='submit'] {
+        display: inline-block;
+    }
+
+    dd.active {
+        p.description {
+            color: inherit;
+            font-style: normal;
+        }
+    }
+
+    dd {
+        padding: 0.3em 0.5em;
+        margin: 0;
+    }
+
+    dt {
+        padding: 0.5em 0.5em;
+        margin: 0;
+    }
+
+    dt.active, dd.active {
+        background-color: @tr-active-color;
+    }
+
+    dt {
+        display: inline-block;
+        vertical-align: top;
+        min-width: 12em;
+        min-height: 2.5em;
+        width: 30%;
+        &.errors label {
+            color: @color-critical;
+        }
+    }
+
+    .errors label {
+        color: @color-critical;
+    }
+
+    dd {
+        display: inline-block;
+        width: 63%;
+        min-height: 2.5em;
+        vertical-align: top;
+        margin: 0;
+        &.errors {
+            input[type=text], select {
+                border-color: @color-critical;
+            }
+        }
+
+        &.full-width {
+            padding: 0.5em;
+            width: 100%;
+        }
+    }
+
+    dd:after {
+        display: block;
+        content: '';
+    }
+
+    textarea {
+        height: auto;
+    }
+
+    dd ul.errors {
+        list-style-type: none;
+        padding-left: 0.3em;
+
+        li {
+            color: @color-critical;
+            padding: 0.3em;
+        }
+    }
+
+
+    #_FAKE_SUBMIT {
+        position: absolute;
+        left: -100%;
+    }
+}
+
+/** END of forms **/
+
+/* Form fallback styles, remove once <=2.9.5 support is dropped */
+
+.icinga-controls {
+    input[type="file"] {
+        background-color: @low-sat-blue;
+    }
+
+    button[type="button"] {
+        background-color: @low-sat-blue;
+    }
+}
+
+form.icinga-form {
+    input[type="file"] {
+        flex: 1 1 auto;
+        width: 0;
+    }
+
+    button[type="button"] {
+        line-height: normal;
+    }
+}
+
+/* Form fallback styles end */
+
+/** Custom font styling **/
+textarea.smaller {
+    font-size: 0.833em;
+    max-width: 60em;
+}
+/** END of custom font styling **/
diff --git a/public/img/ack.gif b/public/img/ack.gif
new file mode 100644
index 0000000..cda95a8
--- /dev/null
+++ b/public/img/ack.gif
diff --git a/public/img/downtime.gif b/public/img/downtime.gif
new file mode 100644
index 0000000..1687798
--- /dev/null
+++ b/public/img/downtime.gif
diff --git a/public/img/help.gif b/public/img/help.gif
new file mode 100644
index 0000000..9226497
--- /dev/null
+++ b/public/img/help.gif
diff --git a/public/img/icon_collapse.png b/public/img/icon_collapse.png
new file mode 100644
index 0000000..0c7f37b
--- /dev/null
+++ b/public/img/icon_collapse.png
diff --git a/public/img/icon_expand.png b/public/img/icon_expand.png
new file mode 100644
index 0000000..19862cf
--- /dev/null
+++ b/public/img/icon_expand.png
diff --git a/public/js/behavior/sortable.js b/public/js/behavior/sortable.js
new file mode 100644
index 0000000..8f32ab7
--- /dev/null
+++ b/public/js/behavior/sortable.js
@@ -0,0 +1,47 @@
+/*! Icinga Web 2 | (c) 2018 Icinga Development Team | GPLv2+ */
+
+(function(Icinga, $) {
+
+    'use strict';
+
+    Icinga.Behaviors = Icinga.Behaviors || {};
+
+    var Sortable = function (icinga) {
+        Icinga.EventListener.call(this, icinga);
+        this.on('rendered', this.onRendered, this);
+    };
+
+    Sortable.prototype = new Icinga.EventListener();
+
+    Sortable.prototype.onRendered = function(e) {
+        $(e.target).find('.sortable').each(function() {
+            var $el = $(this);
+            var options = {
+                scroll: $el.closest('.container')[0],
+                onMove: function (/**Event*/ event, /**Event*/ originalEvent) {
+                    if (typeof this.options['filter'] !== 'undefined' && $(event.related).is(this.options['filter'])) {
+                        // Assumes the filtered item is either at the very start or end of the list and prevents the
+                        // user from dropping other items before (if at the very start) or after it.
+                        return false;
+                    }
+                }
+            };
+
+            $.each($el.data(), function (i, v) {
+                if (i.length > 8 && i.substring(0, 8) === 'sortable') {
+                    options[i.charAt(8).toLowerCase() + i.substr(9)] = v;
+                }
+            });
+
+            if (typeof options.group !== 'undefined' && typeof options.group.put === 'string' && options.group.put.substring(0, 9) === 'function:') {
+                var module = icinga.module($el.closest('.icinga-module').data('icingaModule'));
+                options.group.put = module.object[options.group.put.substr(9)];
+            }
+
+            $(this).sortable(options);
+        });
+    };
+
+    Icinga.Behaviors.Sortable = Sortable;
+
+})(Icinga, jQuery);
diff --git a/public/js/module.js b/public/js/module.js
new file mode 100644
index 0000000..4855c9c
--- /dev/null
+++ b/public/js/module.js
@@ -0,0 +1,287 @@
+
+(function(Icinga) {
+
+    var Bp = function(module) {
+        /**
+         * YES, we need Icinga
+         */
+        this.module = module;
+
+        this.idCache = {};
+
+        this.initialize();
+
+        this.module.icinga.logger.debug('BP module loaded');
+    };
+
+    Bp.prototype = {
+
+        initialize: function()
+        {
+            /**
+             * Tell Icinga about our event handlers
+             */
+            this.module.on('rendered', this.onRendered);
+
+            this.module.on('focus', 'form input, form textarea, form select', this.formElementFocus);
+
+            this.module.on('click', 'li.process summary:not(.collapsible-control)', this.processHeaderClick);
+            this.module.on('end', 'ul.sortable', this.rowDropped);
+
+            this.module.on('click', 'div.tiles > div', this.tileClick);
+            this.module.on('click', '.dashboard-tile', this.dashboardTileClick);
+            this.module.on('end', 'div.tiles.sortable', this.tileDropped);
+
+            this.module.on('choose', '.sortable', this.suspendAutoRefresh);
+            this.module.on('unchoose', '.sortable', this.resumeAutoRefresh);
+
+            this.module.icinga.logger.debug('BP module initialized');
+        },
+
+        onRendered: function (event) {
+            var $container = $(event.currentTarget);
+            this.fixFullscreen($container);
+            this.restoreCollapsedBps(event.target);
+            this.highlightFormErrors($container);
+            this.hideInactiveFormDescriptions($container);
+            this.fixTileLinksOnDashboard($container);
+        },
+
+        // TODO: Remove once support for Icinga Web 2.10.x is dropped
+        processHeaderClick: function (event) {
+            event.stopPropagation();
+            event.preventDefault();
+
+            let details = event.currentTarget.parentNode;
+            details.open = ! details.open;
+
+            let bpUl = event.currentTarget.closest('.content > ul.bp');
+            if (! bpUl || ! ('isRootConfig' in bpUl.dataset)) {
+                return;
+            }
+
+            let bpName = bpUl.id;
+            if (typeof this.idCache[bpName] === 'undefined') {
+                this.idCache[bpName] = [];
+            }
+
+            let li = details.parentNode;
+            let index = this.idCache[bpName].indexOf(li.id);
+            if (! details.open) {
+                if (index === -1) {
+                    this.idCache[bpName].push(li.id);
+                }
+            } else if (index !== -1) {
+                this.idCache[bpName].splice(index, 1);
+            }
+        },
+
+        hideInactiveFormDescriptions: function($container) {
+            $container.find('dd').not('.active').find('p.description').hide();
+        },
+
+        tileClick: function(event) {
+            $(event.currentTarget).find('> a').first().trigger('click');
+        },
+
+        dashboardTileClick: function(event) {
+            $(event.currentTarget).find('> .bp-link > a').first().trigger('click');
+        },
+
+        suspendAutoRefresh: function(event) {
+            // TODO: If there is a better approach some time, let me know
+            $(event.originalEvent.from).closest('.container').data('lastUpdate', (new Date()).getTime() + 3600 * 1000);
+            event.stopPropagation();
+        },
+
+        resumeAutoRefresh: function(event) {
+            var $container = $(event.originalEvent.from).closest('.container');
+            $container.data('lastUpdate', (new Date()).getTime() - ($container.data('icingaRefresh') || 10) * 1000);
+            event.stopPropagation();
+        },
+
+        tileDropped: function(event) {
+            var evt = event.originalEvent;
+            if (evt.oldIndex !== evt.newIndex) {
+                var $source = $(evt.from);
+                $source.addClass('progress')
+                    .data('sortable').option('disabled', true);
+
+                var data = {
+                    csrfToken: $source.data('csrfToken'),
+                    movenode: 'movenode', // That's the submit button..
+                    parent: $(evt.to).data('nodeName') || '',
+                    from: evt.oldIndex,
+                    to: evt.newIndex
+                };
+
+                var actionUrl = [
+                    $source.data('actionUrl'),
+                    'action=move',
+                    'movenode=' + $(evt.item).data('nodeName')
+                ].join('&');
+
+                var $container = $source.closest('.container');
+                icinga.loader.loadUrl(actionUrl, $container, data, 'POST');
+            }
+        },
+
+        rowDropped: function(event) {
+            var evt = event.originalEvent,
+                $source = $(evt.from),
+                $target = $(evt.to);
+
+            if (evt.oldIndex !== evt.newIndex || !$target.is($source)) {
+                var $root = $target.closest('.content > ul.bp');
+                $root.addClass('progress')
+                    .find('ul.bp')
+                    .add($root)
+                    .each(function() {
+                        $(this).data('sortable').option('disabled', true);
+                    });
+
+                var data = {
+                    csrfToken: $target.data('csrfToken'),
+                    movenode: 'movenode', // That's the submit button..
+                    parent: $target.closest('.process').data('nodeName') || '',
+                    from: evt.oldIndex,
+                    to: evt.newIndex
+                };
+
+                var actionUrl = [
+                    $source.data('actionUrl'),
+                    'action=move',
+                    'movenode=' + $(evt.item).data('nodeName')
+                ].join('&');
+
+                var $container = $target.closest('.container');
+                icinga.loader.loadUrl(actionUrl, $container, data, 'POST');
+                event.stopPropagation();
+            }
+        },
+
+        /**
+         * Called by Sortable.js while in Tree-View
+         *
+         * See group option on the sortable elements.
+         *
+         * @param to
+         * @param from
+         * @param item
+         * @param event
+         * @returns boolean
+         */
+        rowPutAllowed: function(to, from, item, event) {
+            if (to.options.group.name === 'root') {
+                return $(item).is('.process');
+            }
+
+            // Otherwise we're facing a nesting error next
+            var $item = $(item),
+                childrenNames = $item.find('.process').map(function () {
+                    return $(this).data('nodeName');
+                }).get();
+            childrenNames.push($item.data('nodeName'));
+            var loopDetected = $(to.el).parents('.process').toArray().some(function (parent) {
+                return childrenNames.indexOf($(parent).data('nodeName')) !== -1;
+            });
+
+            return !loopDetected;
+        },
+
+        fixTileLinksOnDashboard: function($container) {
+            if ($container.closest('div.dashboard').length) {
+                $container.find('div.tiles').data('baseTarget', '_next');
+            }
+        },
+
+        fixFullscreen: function($container) {
+            var $controls = $container.find('div.controls');
+            var $layout = $('#layout');
+            var icinga = this.module.icinga;
+            if ($controls.hasClass('want-fullscreen')) {
+                if (!$layout.hasClass('fullscreen-layout')) {
+
+                    $layout.addClass('fullscreen-layout');
+                    $controls.removeAttr('style');
+                    $container.find('.fake-controls').remove();
+                    icinga.ui.currentLayout = 'fullscreen';
+                }
+            } else if (! $container.parent('.dashboard').length) {
+                if ($layout.hasClass('fullscreen-layout')) {
+                    $layout.removeClass('fullscreen-layout');
+                    icinga.ui.layoutHasBeenChanged();
+                    icinga.ui.initializeControls($container);
+                }
+            }
+        },
+
+        // TODO: Remove once support for Icinga Web 2.10.x is dropped
+        restoreCollapsedBps: function(container) {
+            let bpUl = container.querySelector('.content > ul.bp');
+            if (! bpUl || ! ('isRootConfig' in bpUl.dataset)) {
+                return;
+            }
+
+            let bpName = bpUl.id;
+            if (typeof this.idCache[bpName] === 'undefined') {
+                return;
+            }
+
+            bpUl.querySelectorAll('li.process').forEach(li => {
+                if (this.idCache[bpName].indexOf(li.id) !== -1) {
+                    li.querySelector(':scope > details').open = false;
+                }
+            });
+        },
+
+        /** BEGIN Form handling, borrowed from Director **/
+        formElementFocus: function(ev)
+        {
+            var $input = $(ev.currentTarget);
+            var $dd = $input.closest('dd');
+            $dd.find('p.description').show();
+            if ($dd.attr('id') && $dd.attr('id').match(/button/)) {
+                return;
+            }
+            var $li = $input.closest('li');
+            var $dt = $dd.prev();
+            var $form = $dd.closest('form');
+
+            $form.find('dt, dd, li').removeClass('active');
+            $li.addClass('active');
+            $dt.addClass('active');
+            $dd.addClass('active');
+            $dd.find('p.description.fading-out')
+                .stop(true)
+                .removeClass('fading-out')
+                .fadeIn('fast');
+
+            $form.find('dd').not($dd)
+                .find('p.description')
+                .not('.fading-out')
+                .addClass('fading-out')
+                .delay(2000)
+                .fadeOut('slow', function() {
+                    $(this).removeClass('fading-out').hide()
+                });
+        },
+
+        highlightFormErrors: function($container)
+        {
+            $container.find('dd ul.errors').each(function(idx, ul) {
+                var $ul = $(ul);
+                var $dd = $ul.closest('dd');
+                var $dt = $dd.prev();
+
+                $dt.addClass('errors');
+                $dd.addClass('errors');
+            });
+        }
+        /** END Form handling **/
+    };
+
+    Icinga.availableModules.businessprocess = Bp;
+
+}(Icinga));
+
diff --git a/public/js/vendor/Sortable.js b/public/js/vendor/Sortable.js
new file mode 100644
index 0000000..edb4e1c
--- /dev/null
+++ b/public/js/vendor/Sortable.js
@@ -0,0 +1,2349 @@
+/**!
+ * Sortable
+ * @author	RubaXa   <trash@rubaxa.org>
+ * @author	owenm    <owen23355@gmail.com>
+ * @license MIT
+ */
+
+(function sortableModule(factory) {
+    "use strict";
+
+    if (typeof define === "function" && define.amd) {
+        define(factory);
+    }
+    else if (typeof module != "undefined" && typeof module.exports != "undefined") {
+        module.exports = factory();
+    }
+    else {
+        /* jshint sub:true */
+        window["Sortable"] = factory();
+    }
+})(function sortableFactory() {
+    "use strict";
+
+    if (typeof window === "undefined" || !window.document) {
+        return function sortableError() {
+            throw new Error("Sortable.js requires a window with a document");
+        };
+    }
+
+    var dragEl,
+        parentEl,
+        ghostEl,
+        cloneEl,
+        rootEl,
+        nextEl,
+        lastDownEl,
+
+        scrollEl,
+        scrollParentEl,
+        scrollCustomFn,
+
+        oldIndex,
+        newIndex,
+
+        activeGroup,
+        putSortable,
+
+        autoScrolls = [],
+        scrolling = false,
+
+        awaitingDragStarted = false,
+        ignoreNextClick = false,
+        sortables = [],
+
+        pointerElemChangedInterval,
+        lastPointerElemX,
+        lastPointerElemY,
+
+        tapEvt,
+        touchEvt,
+
+        moved,
+
+
+        lastTarget,
+        lastDirection,
+        pastFirstInvertThresh = false,
+        isCircumstantialInvert = false,
+        lastMode, // 'swap' or 'insert'
+
+        targetMoveDistance,
+
+
+        forRepaintDummy,
+        realDragElRect, // dragEl rect after current animation
+
+        /** @const */
+        R_SPACE = /\s+/g,
+
+        expando = 'Sortable' + (new Date).getTime(),
+
+        win = window,
+        document = win.document,
+        parseInt = win.parseInt,
+        setTimeout = win.setTimeout,
+
+        $ = win.jQuery || win.Zepto,
+        Polymer = win.Polymer,
+
+        captureMode = {
+            capture: false,
+            passive: false
+        },
+
+        IE11OrLess = !!navigator.userAgent.match(/(?:Trident.*rv[ :]?11\.|msie|iemobile)/i),
+        Edge = !!navigator.userAgent.match(/Edge/i),
+        // FireFox = !!navigator.userAgent.match(/firefox/i),
+
+        CSSFloatProperty = Edge || IE11OrLess ? 'cssFloat' : 'float',
+
+        // This will not pass for IE9, because IE9 DnD only works on anchors
+        supportDraggable = ('draggable' in document.createElement('div')),
+
+        supportCssPointerEvents = (function() {
+            // false when <= IE11
+            if (IE11OrLess) {
+                return false;
+            }
+            var el = document.createElement('x');
+            el.style.cssText = 'pointer-events:auto';
+            return el.style.pointerEvents === 'auto';
+        })(),
+
+        _silent = false,
+        _alignedSilent = false,
+
+        abs = Math.abs,
+        min = Math.min,
+
+        savedInputChecked = [],
+
+        _detectDirection = function(el, options) {
+            var elCSS = _css(el),
+                elWidth = parseInt(elCSS.width),
+                child1 = _getChild(el, 0, options),
+                child2 = _getChild(el, 1, options),
+                firstChildCSS = child1 && _css(child1),
+                secondChildCSS = child2 && _css(child2),
+                firstChildWidth = firstChildCSS && parseInt(firstChildCSS.marginLeft) + parseInt(firstChildCSS.marginRight) + _getRect(child1).width,
+                secondChildWidth = secondChildCSS && parseInt(secondChildCSS.marginLeft) + parseInt(secondChildCSS.marginRight) + _getRect(child2).width;
+            if (elCSS.display === 'flex') {
+                return elCSS.flexDirection === 'column' || elCSS.flexDirection === 'column-reverse'
+                    ? 'vertical' : 'horizontal';
+            }
+            if (child1 && firstChildCSS.float !== 'none') {
+                var touchingSideChild2 = firstChildCSS.float === 'left' ? 'left' : 'right';
+
+                return child2 && (secondChildCSS.clear === 'both' || secondChildCSS.clear === touchingSideChild2) ?
+                    'vertical' : 'horizontal';
+            }
+            return (child1 &&
+                (
+                    firstChildCSS.display === 'block' ||
+                    firstChildCSS.display === 'flex' ||
+                    firstChildCSS.display === 'table' ||
+                    firstChildCSS.display === 'grid' ||
+                    firstChildWidth >= elWidth &&
+                    elCSS[CSSFloatProperty] === 'none' ||
+                    child2 &&
+                    elCSS[CSSFloatProperty] === 'none' &&
+                    firstChildWidth + secondChildWidth > elWidth
+                ) ?
+                    'vertical' : 'horizontal'
+            );
+        },
+
+        /**
+         * Detects first nearest empty sortable to X and Y position using emptyInsertThreshold.
+         * @param  {Number} x      X position
+         * @param  {Number} y      Y position
+         * @return {HTMLElement}   Element of the first found nearest Sortable
+         */
+        _detectNearestEmptySortable = function(x, y) {
+            for (var i = 0; i < sortables.length; i++) {
+                if (sortables[i].children.length) continue;
+
+                var rect = _getRect(sortables[i]),
+                    threshold = sortables[i][expando].options.emptyInsertThreshold,
+                    insideHorizontally = x >= (rect.left - threshold) && x <= (rect.right + threshold),
+                    insideVertically = y >= (rect.top - threshold) && y <= (rect.bottom + threshold);
+
+                if (insideHorizontally && insideVertically) {
+                    return sortables[i];
+                }
+            }
+        },
+
+        _isClientInRowColumn = function(x, y, el, axis, options) {
+            var targetRect = _getRect(el),
+                targetS1Opp = axis === 'vertical' ? targetRect.left : targetRect.top,
+                targetS2Opp = axis === 'vertical' ? targetRect.right : targetRect.bottom,
+                mouseOnOppAxis = axis === 'vertical' ? x : y;
+
+            return targetS1Opp < mouseOnOppAxis && mouseOnOppAxis < targetS2Opp;
+        },
+
+        _isElInRowColumn = function(el1, el2, axis) {
+            var el1Rect = el1 === dragEl && realDragElRect || _getRect(el1),
+                el2Rect = el2 === dragEl && realDragElRect || _getRect(el2),
+                el1S1Opp = axis === 'vertical' ? el1Rect.left : el1Rect.top,
+                el1S2Opp = axis === 'vertical' ? el1Rect.right : el1Rect.bottom,
+                el1OppLength = axis === 'vertical' ? el1Rect.width : el1Rect.height,
+                el2S1Opp = axis === 'vertical' ? el2Rect.left : el2Rect.top,
+                el2S2Opp = axis === 'vertical' ? el2Rect.right : el2Rect.bottom,
+                el2OppLength = axis === 'vertical' ? el2Rect.width : el2Rect.height;
+
+            return (
+                el1S1Opp === el2S1Opp ||
+                el1S2Opp === el2S2Opp ||
+                (el1S1Opp + el1OppLength / 2) === (el2S1Opp + el2OppLength / 2)
+            );
+        },
+
+        _getParentAutoScrollElement = function(el, includeSelf) {
+            // skip to window
+            if (!el || !el.getBoundingClientRect) return win;
+
+            var elem = el;
+            var gotSelf = false;
+            do {
+                // we don't need to get elem css if it isn't even overflowing in the first place (performance)
+                if (elem.clientWidth < elem.scrollWidth || elem.clientHeight < elem.scrollHeight) {
+                    var elemCSS = _css(elem);
+                    if (
+                        elem.clientWidth < elem.scrollWidth && (elemCSS.overflowX == 'auto' || elemCSS.overflowX == 'scroll') ||
+                        elem.clientHeight < elem.scrollHeight && (elemCSS.overflowY == 'auto' || elemCSS.overflowY == 'scroll')
+                    ) {
+                        if (!elem || !elem.getBoundingClientRect || elem === document.body) return win;
+
+                        if (gotSelf || includeSelf) return elem;
+                        gotSelf = true;
+                    }
+                }
+                /* jshint boss:true */
+            } while (elem = elem.parentNode);
+
+            return win;
+        },
+
+        _autoScroll = _throttle(function (/**Event*/evt, /**Object*/options, /**HTMLElement*/rootEl, /**Boolean*/isFallback) {
+            // Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=505521
+            if (options.scroll) {
+                var _this = rootEl ? rootEl[expando] : window,
+                    sens = options.scrollSensitivity,
+                    speed = options.scrollSpeed,
+
+                    x = evt.clientX,
+                    y = evt.clientY,
+
+                    winWidth = window.innerWidth,
+                    winHeight = window.innerHeight,
+
+                    scrollThisInstance = false;
+
+                // Detect scrollEl
+                if (scrollParentEl !== rootEl) {
+                    _clearAutoScrolls();
+
+                    scrollEl = options.scroll;
+                    scrollCustomFn = options.scrollFn;
+
+                    if (scrollEl === true) {
+                        scrollEl = _getParentAutoScrollElement(rootEl, true);
+                        scrollParentEl = scrollEl;
+                    }
+                }
+
+
+                var layersOut = 0;
+                var currentParent = scrollEl;
+                do {
+                    var	el = currentParent,
+                        rect = _getRect(el),
+
+                        top = rect.top,
+                        bottom = rect.bottom,
+                        left = rect.left,
+                        right = rect.right,
+
+                        width = rect.width,
+                        height = rect.height,
+
+                        scrollWidth,
+                        scrollHeight,
+
+                        css,
+
+                        vx,
+                        vy,
+
+                        canScrollX,
+                        canScrollY,
+
+                        scrollPosX,
+                        scrollPosY;
+
+
+                    if (el !== win) {
+                        scrollWidth = el.scrollWidth;
+                        scrollHeight = el.scrollHeight;
+
+                        css = _css(el);
+
+                        canScrollX = width < scrollWidth && (css.overflowX === 'auto' || css.overflowX === 'scroll');
+                        canScrollY = height < scrollHeight && (css.overflowY === 'auto' || css.overflowY === 'scroll');
+
+                        scrollPosX = el.scrollLeft;
+                        scrollPosY = el.scrollTop;
+                    } else {
+                        scrollWidth = document.documentElement.scrollWidth;
+                        scrollHeight = document.documentElement.scrollHeight;
+
+                        css = _css(document.documentElement);
+
+                        canScrollX = width < scrollWidth && (css.overflowX === 'auto' || css.overflowX === 'scroll' || css.overflowX === 'visible');
+                        canScrollY = height < scrollHeight && (css.overflowY === 'auto' || css.overflowY === 'scroll' || css.overflowY === 'visible');
+
+                        scrollPosX = document.documentElement.scrollLeft;
+                        scrollPosY = document.documentElement.scrollTop;
+                    }
+
+                    vx = canScrollX && (abs(right - x) <= sens && (scrollPosX + width) < scrollWidth) - (abs(left - x) <= sens && !!scrollPosX);
+
+                    vy = canScrollY && (abs(bottom - y) <= sens && (scrollPosY + height) < scrollHeight) - (abs(top - y) <= sens && !!scrollPosY);
+
+
+                    if (!autoScrolls[layersOut]) {
+                        for (var i = 0; i <= layersOut; i++) {
+                            if (!autoScrolls[i]) {
+                                autoScrolls[i] = {};
+                            }
+                        }
+                    }
+
+                    if (autoScrolls[layersOut].vx != vx || autoScrolls[layersOut].vy != vy || autoScrolls[layersOut].el !== el) {
+                        autoScrolls[layersOut].el = el;
+                        autoScrolls[layersOut].vx = vx;
+                        autoScrolls[layersOut].vy = vy;
+
+                        clearInterval(autoScrolls[layersOut].pid);
+
+                        if (el && (vx != 0 || vy != 0)) {
+                            scrollThisInstance = true;
+                            /* jshint loopfunc:true */
+                            autoScrolls[layersOut].pid = setInterval((function () {
+                                // emulate drag over during autoscroll (fallback), emulating native DnD behaviour
+                                if (isFallback && this.layer === 0) {
+                                    Sortable.active._emulateDragOver(true);
+                                }
+                                var scrollOffsetY = autoScrolls[this.layer].vy ? autoScrolls[this.layer].vy * speed : 0;
+                                var scrollOffsetX = autoScrolls[this.layer].vx ? autoScrolls[this.layer].vx * speed : 0;
+
+                                if ('function' === typeof(scrollCustomFn)) {
+                                    if (scrollCustomFn.call(_this, scrollOffsetX, scrollOffsetY, evt, touchEvt, autoScrolls[this.layer].el) !== 'continue') {
+                                        return;
+                                    }
+                                }
+                                if (autoScrolls[this.layer].el === win) {
+                                    win.scrollTo(win.pageXOffset + scrollOffsetX, win.pageYOffset + scrollOffsetY);
+                                } else {
+                                    autoScrolls[this.layer].el.scrollTop += scrollOffsetY;
+                                    autoScrolls[this.layer].el.scrollLeft += scrollOffsetX;
+                                }
+                            }).bind({layer: layersOut}), 24);
+                        }
+                    }
+                    layersOut++;
+                } while (options.bubbleScroll && currentParent !== win && (currentParent = _getParentAutoScrollElement(currentParent, false)));
+                scrolling = scrollThisInstance; // in case another function catches scrolling as false in between when it is not
+            }
+        }, 30),
+
+        _clearAutoScrolls = function () {
+            autoScrolls.forEach(function(autoScroll) {
+                clearInterval(autoScroll.pid);
+            });
+            autoScrolls = [];
+        },
+
+        _prepareGroup = function (options) {
+            function toFn(value, pull) {
+                return function(to, from, dragEl, evt) {
+                    var sameGroup = to.options.group.name &&
+                        from.options.group.name &&
+                        to.options.group.name === from.options.group.name;
+
+                    if (value == null && (pull || sameGroup)) {
+                        // Default pull value
+                        // Default pull and put value if same group
+                        return true;
+                    } else if (value == null || value === false) {
+                        return false;
+                    } else if (pull && value === 'clone') {
+                        return value;
+                    } else if (typeof value === 'function') {
+                        return toFn(value(to, from, dragEl, evt), pull)(to, from, dragEl, evt);
+                    } else {
+                        var otherGroup = (pull ? to : from).options.group.name;
+
+                        return (value === true ||
+                            (typeof value === 'string' && value === otherGroup) ||
+                            (value.join && value.indexOf(otherGroup) > -1));
+                    }
+                };
+            }
+
+            var group = {};
+            var originalGroup = options.group;
+
+            if (!originalGroup || typeof originalGroup != 'object') {
+                originalGroup = {name: originalGroup};
+            }
+
+            group.name = originalGroup.name;
+            group.checkPull = toFn(originalGroup.pull, true);
+            group.checkPut = toFn(originalGroup.put);
+            group.revertClone = originalGroup.revertClone;
+
+            options.group = group;
+        },
+
+        _checkAlignment = function(evt) {
+            if (!dragEl || !dragEl.parentNode) return;
+            dragEl.parentNode[expando] && dragEl.parentNode[expando]._computeIsAligned(evt);
+        },
+
+        _isTrueParentSortable = function(el, target) {
+            var trueParent = target;
+            while (!trueParent[expando]) {
+                trueParent = trueParent.parentNode;
+            }
+
+            return el === trueParent;
+        },
+
+        _artificalBubble = function(sortable, originalEvt, method) {
+            // Artificial IE bubbling
+            var nextParent = sortable.parentNode;
+            while (nextParent && !nextParent[expando]) {
+                nextParent = nextParent.parentNode;
+            }
+
+            if (nextParent) {
+                nextParent[expando][method](_extend(originalEvt, {
+                    artificialBubble: true
+                }));
+            }
+        },
+
+        _hideGhostForTarget = function() {
+            if (!supportCssPointerEvents && ghostEl) {
+                _css(ghostEl, 'display', 'none');
+            }
+        },
+
+        _unhideGhostForTarget = function() {
+            if (!supportCssPointerEvents && ghostEl) {
+                _css(ghostEl, 'display', '');
+            }
+        };
+
+
+    // #1184 fix - Prevent click event on fallback if dragged but item not changed position
+    document.addEventListener('click', function(evt) {
+        if (ignoreNextClick) {
+            evt.preventDefault();
+            evt.stopPropagation && evt.stopPropagation();
+            evt.stopImmediatePropagation && evt.stopImmediatePropagation();
+            ignoreNextClick = false;
+            return false;
+        }
+    }, true);
+
+    var nearestEmptyInsertDetectEvent = function(evt) {
+        evt = evt.touches ? evt.touches[0] : evt;
+        if (dragEl) {
+            var nearest = _detectNearestEmptySortable(evt.clientX, evt.clientY);
+
+            if (nearest) {
+                nearest[expando]._onDragOver({
+                    clientX: evt.clientX,
+                    clientY: evt.clientY,
+                    target: nearest,
+                    rootEl: nearest
+                });
+            }
+        }
+    };
+    // We do not want this to be triggered if completed (bubbling canceled), so only define it here
+    _on(document, 'dragover', nearestEmptyInsertDetectEvent);
+    _on(document, 'mousemove', nearestEmptyInsertDetectEvent);
+    _on(document, 'touchmove', nearestEmptyInsertDetectEvent);
+
+    /**
+     * @class  Sortable
+     * @param  {HTMLElement}  el
+     * @param  {Object}       [options]
+     */
+    function Sortable(el, options) {
+        if (!(el && el.nodeType && el.nodeType === 1)) {
+            throw 'Sortable: `el` must be HTMLElement, not ' + {}.toString.call(el);
+        }
+
+        this.el = el; // root element
+        this.options = options = _extend({}, options);
+
+
+        // Export instance
+        el[expando] = this;
+
+        // Default options
+        var defaults = {
+            group: null,
+            sort: true,
+            disabled: false,
+            store: null,
+            handle: null,
+            scroll: true,
+            scrollSensitivity: 30,
+            scrollSpeed: 10,
+            bubbleScroll: true,
+            draggable: /[uo]l/i.test(el.nodeName) ? '>li' : '>*',
+            swapThreshold: 1, // percentage; 0 <= x <= 1
+            invertSwap: false, // invert always
+            invertedSwapThreshold: null, // will be set to same as swapThreshold if default
+            removeCloneOnHide: true,
+            direction: function() {
+                return _detectDirection(el, this.options);
+            },
+            ghostClass: 'sortable-ghost',
+            chosenClass: 'sortable-chosen',
+            dragClass: 'sortable-drag',
+            ignore: 'a, img',
+            filter: null,
+            preventOnFilter: true,
+            animation: 0,
+            easing: null,
+            setData: function (dataTransfer, dragEl) {
+                dataTransfer.setData('Text', dragEl.textContent);
+            },
+            dropBubble: false,
+            dragoverBubble: false,
+            dataIdAttr: 'data-id',
+            delay: 0,
+            touchStartThreshold: parseInt(window.devicePixelRatio, 10) || 1,
+            forceFallback: false,
+            fallbackClass: 'sortable-fallback',
+            fallbackOnBody: false,
+            fallbackTolerance: 0,
+            fallbackOffset: {x: 0, y: 0},
+            supportPointer: Sortable.supportPointer !== false && (
+                ('PointerEvent' in window) ||
+                window.navigator && ('msPointerEnabled' in window.navigator) // microsoft
+            ),
+            emptyInsertThreshold: 5
+        };
+
+
+        // Set default options
+        for (var name in defaults) {
+            !(name in options) && (options[name] = defaults[name]);
+        }
+
+        _prepareGroup(options);
+
+        // Bind all private methods
+        for (var fn in this) {
+            if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
+                this[fn] = this[fn].bind(this);
+            }
+        }
+
+        // Setup drag mode
+        this.nativeDraggable = options.forceFallback ? false : supportDraggable;
+
+        // Bind events
+        if (options.supportPointer) {
+            _on(el, 'pointerdown', this._onTapStart);
+        } else {
+            _on(el, 'mousedown', this._onTapStart);
+            _on(el, 'touchstart', this._onTapStart);
+        }
+
+        if (this.nativeDraggable) {
+            _on(el, 'dragover', this);
+            _on(el, 'dragenter', this);
+        }
+
+        sortables.push(this.el);
+
+        // Restore sorting
+        options.store && options.store.get && this.sort(options.store.get(this) || []);
+    }
+
+    Sortable.prototype = /** @lends Sortable.prototype */ {
+        constructor: Sortable,
+
+        _computeIsAligned: function(evt) {
+            var target;
+
+            if (ghostEl && !supportCssPointerEvents) {
+                _hideGhostForTarget();
+                target = document.elementFromPoint(evt.clientX, evt.clientY);
+                _unhideGhostForTarget();
+            } else {
+                target = evt.target;
+            }
+
+            target = _closest(target, this.options.draggable, this.el, false);
+            if (_alignedSilent) return;
+            if (!dragEl || dragEl.parentNode !== this.el) return;
+
+            var children = this.el.children;
+            for (var i = 0; i < children.length; i++) {
+                // Don't change for target in case it is changed to aligned before onDragOver is fired
+                if (_closest(children[i], this.options.draggable, this.el, false) && children[i] !== target) {
+                    children[i].sortableMouseAligned = _isClientInRowColumn(evt.clientX, evt.clientY, children[i], this._getDirection(evt, null), this.options);
+                }
+            }
+            // Used for nulling last target when not in element, nothing to do with checking if aligned
+            if (!_closest(target, this.options.draggable, this.el, true)) {
+                lastTarget = null;
+            }
+
+            _alignedSilent = true;
+            setTimeout(function() {
+                _alignedSilent = false;
+            }, 30);
+
+        },
+
+        _getDirection: function(evt, target) {
+            return (typeof this.options.direction === 'function') ? this.options.direction.call(this, evt, target, dragEl) : this.options.direction;
+        },
+
+        _onTapStart: function (/** Event|TouchEvent */evt) {
+            if (!evt.cancelable) return;
+            var _this = this,
+                el = this.el,
+                options = this.options,
+                preventOnFilter = options.preventOnFilter,
+                type = evt.type,
+                touch = evt.touches && evt.touches[0],
+                target = (touch || evt).target,
+                originalTarget = evt.target.shadowRoot && ((evt.path && evt.path[0]) || (evt.composedPath && evt.composedPath()[0])) || target,
+                filter = options.filter,
+                startIndex;
+
+            _saveInputCheckedState(el);
+
+
+            // IE: Calls events in capture mode if event element is nested. This ensures only correct element's _onTapStart goes through.
+            // This process is also done in _onDragOver
+            if (IE11OrLess && !evt.artificialBubble && !_isTrueParentSortable(el, target)) {
+                return;
+            }
+
+            // Don't trigger start event when an element is been dragged, otherwise the evt.oldindex always wrong when set option.group.
+            if (dragEl) {
+                return;
+            }
+
+            if (/mousedown|pointerdown/.test(type) && evt.button !== 0 || options.disabled) {
+                return; // only left button and enabled
+            }
+
+            // cancel dnd if original target is content editable
+            if (originalTarget.isContentEditable) {
+                return;
+            }
+
+            target = _closest(target, options.draggable, el, false);
+
+            if (!target) {
+                if (IE11OrLess) {
+                    _artificalBubble(el, evt, '_onTapStart');
+                }
+                return;
+            }
+
+            if (lastDownEl === target) {
+                // Ignoring duplicate `down`
+                return;
+            }
+
+            // Get the index of the dragged element within its parent
+            startIndex = _index(target, options.draggable);
+
+            // Check filter
+            if (typeof filter === 'function') {
+                if (filter.call(this, evt, target, this)) {
+                    _dispatchEvent(_this, originalTarget, 'filter', target, el, el, startIndex);
+                    preventOnFilter && evt.cancelable && evt.preventDefault();
+                    return; // cancel dnd
+                }
+            }
+            else if (filter) {
+                filter = filter.split(',').some(function (criteria) {
+                    criteria = _closest(originalTarget, criteria.trim(), el, false);
+
+                    if (criteria) {
+                        _dispatchEvent(_this, criteria, 'filter', target, el, el, startIndex);
+                        return true;
+                    }
+                });
+
+                if (filter) {
+                    preventOnFilter && evt.cancelable && evt.preventDefault();
+                    return; // cancel dnd
+                }
+            }
+
+            if (options.handle && !_closest(originalTarget, options.handle, el, false)) {
+                return;
+            }
+
+            // Prepare `dragstart`
+            this._prepareDragStart(evt, touch, target, startIndex);
+        },
+
+
+        _handleAutoScroll: function(evt, fallback) {
+            if (!dragEl || !this.options.scroll) return;
+            var x = evt.clientX,
+                y = evt.clientY,
+
+                elem = document.elementFromPoint(x, y),
+                _this = this;
+
+            // IE does not seem to have native autoscroll,
+            // Edge's autoscroll seems too conditional,
+            // Firefox and Chrome are good
+            if (fallback || Edge || IE11OrLess) {
+                _autoScroll(evt, _this.options, elem, fallback);
+
+                // Listener for pointer element change
+                var ogElemScroller = _getParentAutoScrollElement(elem, true);
+                if (
+                    scrolling &&
+                    (
+                        !pointerElemChangedInterval ||
+                        x !== lastPointerElemX ||
+                        y !== lastPointerElemY
+                    )
+                ) {
+
+                    pointerElemChangedInterval && clearInterval(pointerElemChangedInterval);
+                    // Detect for pointer elem change, emulating native DnD behaviour
+                    pointerElemChangedInterval = setInterval(function() {
+                        if (!dragEl) return;
+                        // could also check if scroll direction on newElem changes due to parent autoscrolling
+                        var newElem = _getParentAutoScrollElement(document.elementFromPoint(x, y), true);
+                        if (newElem !== ogElemScroller) {
+                            ogElemScroller = newElem;
+                            _clearAutoScrolls();
+                            _autoScroll(evt, _this.options, ogElemScroller, fallback);
+                        }
+                    }, 10);
+                    lastPointerElemX = x;
+                    lastPointerElemY = y;
+                }
+
+            } else {
+                // if DnD is enabled (and browser has good autoscrolling), first autoscroll will already scroll, so get parent autoscroll of first autoscroll
+                if (!_this.options.bubbleScroll || _getParentAutoScrollElement(elem, true) === window) {
+                    _clearAutoScrolls();
+                    return;
+                }
+                _autoScroll(evt, _this.options, _getParentAutoScrollElement(elem, false), false);
+            }
+        },
+
+        _prepareDragStart: function (/** Event */evt, /** Touch */touch, /** HTMLElement */target, /** Number */startIndex) {
+            var _this = this,
+                el = _this.el,
+                options = _this.options,
+                ownerDocument = el.ownerDocument,
+                dragStartFn;
+
+            if (target && !dragEl && (target.parentNode === el)) {
+                rootEl = el;
+                dragEl = target;
+                parentEl = dragEl.parentNode;
+                nextEl = dragEl.nextSibling;
+                lastDownEl = target;
+                activeGroup = options.group;
+                oldIndex = startIndex;
+
+                tapEvt = {
+                    target: dragEl,
+                    clientX: (touch || evt).clientX,
+                    clientY: (touch || evt).clientY
+                };
+
+                this._lastX = (touch || evt).clientX;
+                this._lastY = (touch || evt).clientY;
+
+                dragEl.style['will-change'] = 'all';
+                // undo animation if needed
+                dragEl.style.transition = '';
+                dragEl.style.transform = '';
+
+                dragStartFn = function () {
+                    // Delayed drag has been triggered
+                    // we can re-enable the events: touchmove/mousemove
+                    _this._disableDelayedDrag();
+
+                    // Make the element draggable
+                    dragEl.draggable = _this.nativeDraggable;
+
+                    // Bind the events: dragstart/dragend
+                    _this._triggerDragStart(evt, touch);
+
+                    // Drag start event
+                    _dispatchEvent(_this, rootEl, 'choose', dragEl, rootEl, rootEl, oldIndex);
+
+                    // Chosen item
+                    _toggleClass(dragEl, options.chosenClass, true);
+                };
+
+                // Disable "draggable"
+                options.ignore.split(',').forEach(function (criteria) {
+                    _find(dragEl, criteria.trim(), _disableDraggable);
+                });
+
+                if (options.supportPointer) {
+                    _on(ownerDocument, 'pointerup', _this._onDrop);
+                } else {
+                    _on(ownerDocument, 'mouseup', _this._onDrop);
+                    _on(ownerDocument, 'touchend', _this._onDrop);
+                    _on(ownerDocument, 'touchcancel', _this._onDrop);
+                }
+
+                if (options.delay) {
+                    // If the user moves the pointer or let go the click or touch
+                    // before the delay has been reached:
+                    // disable the delayed drag
+                    _on(ownerDocument, 'mouseup', _this._disableDelayedDrag);
+                    _on(ownerDocument, 'touchend', _this._disableDelayedDrag);
+                    _on(ownerDocument, 'touchcancel', _this._disableDelayedDrag);
+                    _on(ownerDocument, 'mousemove', _this._delayedDragTouchMoveHandler);
+                    _on(ownerDocument, 'touchmove', _this._delayedDragTouchMoveHandler);
+                    options.supportPointer && _on(ownerDocument, 'pointermove', _this._delayedDragTouchMoveHandler);
+
+                    _this._dragStartTimer = setTimeout(dragStartFn, options.delay);
+                } else {
+                    dragStartFn();
+                }
+            }
+        },
+
+        _delayedDragTouchMoveHandler: function (/** TouchEvent|PointerEvent **/e) {
+            var touch = e.touches ? e.touches[0] : e;
+            if (min(abs(touch.clientX - this._lastX), abs(touch.clientY - this._lastY))
+                >= this.options.touchStartThreshold
+            ) {
+                this._disableDelayedDrag();
+            }
+        },
+
+        _disableDelayedDrag: function () {
+            var ownerDocument = this.el.ownerDocument;
+
+            clearTimeout(this._dragStartTimer);
+            _off(ownerDocument, 'mouseup', this._disableDelayedDrag);
+            _off(ownerDocument, 'touchend', this._disableDelayedDrag);
+            _off(ownerDocument, 'touchcancel', this._disableDelayedDrag);
+            _off(ownerDocument, 'mousemove', this._delayedDragTouchMoveHandler);
+            _off(ownerDocument, 'touchmove', this._delayedDragTouchMoveHandler);
+            _off(ownerDocument, 'pointermove', this._delayedDragTouchMoveHandler);
+        },
+
+        _triggerDragStart: function (/** Event */evt, /** Touch */touch) {
+            touch = touch || (evt.pointerType == 'touch' ? evt : null);
+
+            if (!this.nativeDraggable || touch) {
+                if (this.options.supportPointer) {
+                    _on(document, 'pointermove', this._onTouchMove);
+                } else if (touch) {
+                    _on(document, 'touchmove', this._onTouchMove);
+                } else {
+                    _on(document, 'mousemove', this._onTouchMove);
+                }
+            } else {
+                _on(dragEl, 'dragend', this);
+                _on(rootEl, 'dragstart', this._onDragStart);
+            }
+
+            try {
+                if (document.selection) {
+                    // Timeout neccessary for IE9
+                    _nextTick(function () {
+                        document.selection.empty();
+                    });
+                } else {
+                    window.getSelection().removeAllRanges();
+                }
+            } catch (err) {
+            }
+        },
+
+        _dragStarted: function (fallback) {
+            awaitingDragStarted = false;
+            if (rootEl && dragEl) {
+                if (this.nativeDraggable) {
+                    _on(document, 'dragover', this._handleAutoScroll);
+                    _on(document, 'dragover', _checkAlignment);
+                }
+                var options = this.options;
+
+                // Apply effect
+                !fallback && _toggleClass(dragEl, options.dragClass, false);
+                _toggleClass(dragEl, options.ghostClass, true);
+
+                // In case dragging an animated element
+                _css(dragEl, 'transform', '');
+
+                Sortable.active = this;
+
+                fallback && this._appendGhost();
+
+                // Drag start event
+                _dispatchEvent(this, rootEl, 'start', dragEl, rootEl, rootEl, oldIndex);
+            } else {
+                this._nulling();
+            }
+        },
+
+        _emulateDragOver: function (bypassLastTouchCheck) {
+            if (touchEvt) {
+                if (this._lastX === touchEvt.clientX && this._lastY === touchEvt.clientY && !bypassLastTouchCheck) {
+                    return;
+                }
+                this._lastX = touchEvt.clientX;
+                this._lastY = touchEvt.clientY;
+
+                _hideGhostForTarget();
+
+                var target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
+                var parent = target;
+
+                while (target && target.shadowRoot) {
+                    target = target.shadowRoot.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
+                    parent = target;
+                }
+
+                if (parent) {
+                    do {
+                        if (parent[expando]) {
+                            var inserted;
+
+                            inserted = parent[expando]._onDragOver({
+                                clientX: touchEvt.clientX,
+                                clientY: touchEvt.clientY,
+                                target: target,
+                                rootEl: parent
+                            });
+
+                            if (inserted && !this.options.dragoverBubble) {
+                                break;
+                            }
+                        }
+
+                        target = parent; // store last element
+                    }
+                        /* jshint boss:true */
+                    while (parent = parent.parentNode);
+                }
+                dragEl.parentNode[expando]._computeIsAligned(touchEvt);
+
+                _unhideGhostForTarget();
+            }
+        },
+
+
+        _onTouchMove: function (/**TouchEvent*/evt) {
+            if (tapEvt) {
+                var	options = this.options,
+                    fallbackTolerance = options.fallbackTolerance,
+                    fallbackOffset = options.fallbackOffset,
+                    touch = evt.touches ? evt.touches[0] : evt,
+                    matrix = ghostEl && _matrix(ghostEl),
+                    scaleX = ghostEl && matrix && matrix.a,
+                    scaleY = ghostEl && matrix && matrix.d,
+                    dx = ((touch.clientX - tapEvt.clientX) + fallbackOffset.x) / (scaleX ? scaleX : 1),
+                    dy = ((touch.clientY - tapEvt.clientY) + fallbackOffset.y) / (scaleY ? scaleY : 1),
+                    translate3d = evt.touches ? 'translate3d(' + dx + 'px,' + dy + 'px,0)' : 'translate(' + dx + 'px,' + dy + 'px)';
+
+
+                // only set the status to dragging, when we are actually dragging
+                if (!Sortable.active && !awaitingDragStarted) {
+                    if (fallbackTolerance &&
+                        min(abs(touch.clientX - this._lastX), abs(touch.clientY - this._lastY)) < fallbackTolerance
+                    ) {
+                        return;
+                    }
+                    this._onDragStart(evt, true);
+                }
+
+                this._handleAutoScroll(touch, true);
+
+
+                moved = true;
+                touchEvt = touch;
+
+
+                _css(ghostEl, 'webkitTransform', translate3d);
+                _css(ghostEl, 'mozTransform', translate3d);
+                _css(ghostEl, 'msTransform', translate3d);
+                _css(ghostEl, 'transform', translate3d);
+
+                evt.cancelable && evt.preventDefault();
+            }
+        },
+
+        _appendGhost: function () {
+            if (!ghostEl) {
+                var rect = _getRect(dragEl, this.options.fallbackOnBody ? document.body : rootEl, true),
+                    css = _css(dragEl),
+                    options = this.options;
+
+                ghostEl = dragEl.cloneNode(true);
+
+                _toggleClass(ghostEl, options.ghostClass, false);
+                _toggleClass(ghostEl, options.fallbackClass, true);
+                _toggleClass(ghostEl, options.dragClass, true);
+
+                _css(ghostEl, 'box-sizing', 'border-box');
+                _css(ghostEl, 'margin', 0);
+                _css(ghostEl, 'top', rect.top);
+                _css(ghostEl, 'left', rect.left);
+                _css(ghostEl, 'width', rect.width);
+                _css(ghostEl, 'height', rect.height);
+                _css(ghostEl, 'opacity', '0.8');
+                _css(ghostEl, 'position', 'fixed');
+                _css(ghostEl, 'zIndex', '100000');
+                _css(ghostEl, 'pointerEvents', 'none');
+
+                options.fallbackOnBody && document.body.appendChild(ghostEl) || rootEl.appendChild(ghostEl);
+            }
+        },
+
+        _onDragStart: function (/**Event*/evt, /**boolean*/fallback) {
+            var _this = this;
+            var dataTransfer = evt.dataTransfer;
+            var options = _this.options;
+
+            // Setup clone
+            cloneEl = _clone(dragEl);
+
+            cloneEl.draggable = false;
+            cloneEl.style['will-change'] = '';
+
+            this._hideClone();
+
+            _toggleClass(cloneEl, _this.options.chosenClass, false);
+
+
+            // #1143: IFrame support workaround
+            _this._cloneId = _nextTick(function () {
+                if (!_this.options.removeCloneOnHide) {
+                    rootEl.insertBefore(cloneEl, dragEl);
+                }
+                _dispatchEvent(_this, rootEl, 'clone', dragEl);
+            });
+
+
+            !fallback && _toggleClass(dragEl, options.dragClass, true);
+
+            // Set proper drop events
+            if (fallback) {
+                ignoreNextClick = true;
+                _this._loopId = setInterval(_this._emulateDragOver, 50);
+            } else {
+                // Undo what was set in _prepareDragStart before drag started
+                _off(document, 'mouseup', _this._onDrop);
+                _off(document, 'touchend', _this._onDrop);
+                _off(document, 'touchcancel', _this._onDrop);
+
+                if (dataTransfer) {
+                    dataTransfer.effectAllowed = 'move';
+                    options.setData && options.setData.call(_this, dataTransfer, dragEl);
+                }
+
+                _on(document, 'drop', _this);
+
+                // #1276 fix:
+                _css(dragEl, 'transform', 'translateZ(0)');
+            }
+
+            awaitingDragStarted = true;
+
+            _this._dragStartId = _nextTick(_this._dragStarted.bind(_this, fallback));
+            _on(document, 'selectstart', _this);
+        },
+
+        // Returns true - if no further action is needed (either inserted or another condition)
+        _onDragOver: function (/**Event*/evt) {
+            var el = this.el,
+                target = evt.target,
+                dragRect,
+                targetRect,
+                revert,
+                options = this.options,
+                group = options.group,
+                activeSortable = Sortable.active,
+                isOwner = (activeGroup === group),
+                canSort = options.sort,
+                _this = this;
+
+            if (_silent) return;
+
+            // IE event order fix
+            if (IE11OrLess && !evt.rootEl && !evt.artificialBubble && !_isTrueParentSortable(el, target)) {
+                return;
+            }
+
+            // Return invocation when no further action is needed in another sortable
+            function completed() {
+                if (activeSortable) {
+                    // Set ghost class to new sortable's ghost class
+                    _toggleClass(dragEl, putSortable ? putSortable.options.ghostClass : activeSortable.options.ghostClass, false);
+                    _toggleClass(dragEl, options.ghostClass, true);
+                }
+
+                if (putSortable !== _this && _this !== Sortable.active) {
+                    putSortable = _this;
+                } else if (_this === Sortable.active) {
+                    putSortable = null;
+                }
+
+
+                // Null lastTarget if it is not inside a previously swapped element
+                if ((target === dragEl && !dragEl.animated) || (target === el && !target.animated)) {
+                    lastTarget = null;
+                }
+                // no bubbling and not fallback
+                if (!options.dragoverBubble && !evt.rootEl && target !== document) {
+                    _this._handleAutoScroll(evt);
+                    dragEl.parentNode[expando]._computeIsAligned(evt);
+                }
+
+                !options.dragoverBubble && evt.stopPropagation && evt.stopPropagation();
+
+                return true;
+            }
+
+            // Call when dragEl has been inserted
+            function changed() {
+                _dispatchEvent(_this, rootEl, 'change', target, el, rootEl, oldIndex, _index(dragEl, options.draggable), evt);
+            }
+
+
+            if (evt.preventDefault !== void 0) {
+                evt.cancelable && evt.preventDefault();
+            }
+
+
+            moved = true;
+
+            target = _closest(target, options.draggable, el, true);
+
+            // target is dragEl or target is animated
+            if (!!_closest(evt.target, null, dragEl, true) || target.animated) {
+                return completed();
+            }
+
+            if (target !== dragEl) {
+                ignoreNextClick = false;
+            }
+
+            if (activeSortable && !options.disabled &&
+                (isOwner
+                        ? canSort || (revert = !rootEl.contains(dragEl)) // Reverting item into the original list
+                        : (
+                            putSortable === this ||
+                            (
+                                (this.lastPutMode = activeGroup.checkPull(this, activeSortable, dragEl, evt)) &&
+                                group.checkPut(this, activeSortable, dragEl, evt)
+                            )
+                        )
+                )
+            ) {
+                var axis = this._getDirection(evt, target);
+
+                dragRect = _getRect(dragEl);
+
+                if (revert) {
+                    this._hideClone();
+                    parentEl = rootEl; // actualization
+
+                    if (nextEl) {
+                        rootEl.insertBefore(dragEl, nextEl);
+                    } else {
+                        rootEl.appendChild(dragEl);
+                    }
+
+                    return completed();
+                }
+
+                if ((el.children.length === 0) || (el.children[0] === ghostEl) ||
+                    _ghostIsLast(evt, axis, el) && !dragEl.animated
+                ) {
+                    //assign target only if condition is true
+                    if (el.children.length !== 0 && el.children[0] !== ghostEl && el === evt.target) {
+                        target = _lastChild(el);
+                    }
+
+                    if (target) {
+                        targetRect = _getRect(target);
+                    }
+
+                    if (isOwner) {
+                        activeSortable._hideClone();
+                    } else {
+                        activeSortable._showClone(this);
+                    }
+
+                    if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, !!target) !== false) {
+                        el.appendChild(dragEl);
+                        parentEl = el; // actualization
+                        realDragElRect = null;
+
+                        changed();
+                        this._animate(dragRect, dragEl);
+                        target && this._animate(targetRect, target);
+                        return completed();
+                    }
+                }
+                else if (target && target !== dragEl && target.parentNode === el) {
+                    var direction = 0,
+                        targetBeforeFirstSwap,
+                        aligned = target.sortableMouseAligned,
+                        differentLevel = dragEl.parentNode !== el,
+                        scrolledPastTop = _isScrolledPast(target, axis === 'vertical' ? 'top' : 'left');
+
+                    if (lastTarget !== target) {
+                        lastMode = null;
+                        targetBeforeFirstSwap = _getRect(target)[axis === 'vertical' ? 'top' : 'left'];
+                        pastFirstInvertThresh = false;
+                    }
+
+                    // Reference: https://www.lucidchart.com/documents/view/10fa0e93-e362-4126-aca2-b709ee56bd8b/0
+                    if (
+                        _isElInRowColumn(dragEl, target, axis) && aligned ||
+                        differentLevel ||
+                        scrolledPastTop ||
+                        options.invertSwap ||
+                        lastMode === 'insert' ||
+                        // Needed, in the case that we are inside target and inserted because not aligned... aligned will stay false while inside
+                        // and lastMode will change to 'insert', but we must swap
+                        lastMode === 'swap'
+                    ) {
+                        // New target that we will be inside
+                        if (lastMode !== 'swap') {
+                            isCircumstantialInvert = options.invertSwap || differentLevel || scrolling || scrolledPastTop;
+                        }
+
+                        direction = _getSwapDirection(evt, target, axis,
+                            options.swapThreshold, options.invertedSwapThreshold == null ? options.swapThreshold : options.invertedSwapThreshold,
+                            isCircumstantialInvert,
+                            lastTarget === target);
+                        lastMode = 'swap';
+                    } else {
+                        // Insert at position
+                        direction = _getInsertDirection(target, options);
+                        lastMode = 'insert';
+                    }
+                    if (direction === 0) return completed();
+
+                    realDragElRect = null;
+                    lastTarget = target;
+
+                    lastDirection = direction;
+
+                    targetRect = _getRect(target);
+
+                    var nextSibling = target.nextElementSibling,
+                        after = false;
+
+                    after = direction === 1;
+
+                    var moveVector = _onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, after);
+
+                    if (moveVector !== false) {
+                        if (moveVector === 1 || moveVector === -1) {
+                            after = (moveVector === 1);
+                        }
+
+                        _silent = true;
+                        setTimeout(_unsilent, 30);
+
+                        if (isOwner) {
+                            activeSortable._hideClone();
+                        } else {
+                            activeSortable._showClone(this);
+                        }
+
+                        if (after && !nextSibling) {
+                            el.appendChild(dragEl);
+                        } else {
+                            target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
+                        }
+
+                        parentEl = dragEl.parentNode; // actualization
+
+                        // must be done before animation
+                        if (targetBeforeFirstSwap !== undefined && !isCircumstantialInvert) {
+                            targetMoveDistance = abs(targetBeforeFirstSwap - _getRect(target)[axis === 'vertical' ? 'top' : 'left']);
+                        }
+                        changed();
+                        !differentLevel && this._animate(targetRect, target);
+                        this._animate(dragRect, dragEl);
+
+                        return completed();
+                    }
+                }
+
+                if (el.contains(dragEl)) {
+                    return completed();
+                }
+            }
+
+            if (IE11OrLess && !evt.rootEl) {
+                _artificalBubble(el, evt, '_onDragOver');
+            }
+
+            return false;
+        },
+
+        _animate: function (prevRect, target) {
+            var ms = this.options.animation;
+
+            if (ms) {
+                var currentRect = _getRect(target);
+
+                if (target === dragEl) {
+                    realDragElRect = currentRect;
+                }
+
+                if (prevRect.nodeType === 1) {
+                    prevRect = _getRect(prevRect);
+                }
+
+                // Check if actually moving position
+                if ((prevRect.left + prevRect.width / 2) !== (currentRect.left + currentRect.width / 2)
+                    || (prevRect.top + prevRect.height / 2) !== (currentRect.top + currentRect.height / 2)
+                ) {
+                    var matrix = _matrix(this.el),
+                        scaleX = matrix && matrix.a,
+                        scaleY = matrix && matrix.d;
+
+                    _css(target, 'transition', 'none');
+                    _css(target, 'transform', 'translate3d('
+                        + (prevRect.left - currentRect.left) / (scaleX ? scaleX : 1) + 'px,'
+                        + (prevRect.top - currentRect.top) / (scaleY ? scaleY : 1) + 'px,0)'
+                    );
+
+                    forRepaintDummy = target.offsetWidth; // repaint
+                    _css(target, 'transition', 'transform ' + ms + 'ms' + (this.options.easing ? ' ' + this.options.easing : ''));
+                    _css(target, 'transform', 'translate3d(0,0,0)');
+                }
+
+                (typeof target.animated === 'number') && clearTimeout(target.animated);
+                target.animated = setTimeout(function () {
+                    _css(target, 'transition', '');
+                    _css(target, 'transform', '');
+                    target.animated = false;
+                }, ms);
+            }
+        },
+
+        _offUpEvents: function () {
+            var ownerDocument = this.el.ownerDocument;
+
+            _off(document, 'touchmove', this._onTouchMove);
+            _off(document, 'pointermove', this._onTouchMove);
+            _off(ownerDocument, 'mouseup', this._onDrop);
+            _off(ownerDocument, 'touchend', this._onDrop);
+            _off(ownerDocument, 'pointerup', this._onDrop);
+            _off(ownerDocument, 'touchcancel', this._onDrop);
+            _off(document, 'selectstart', this);
+        },
+
+        _onDrop: function (/**Event*/evt) {
+            var el = this.el,
+                options = this.options;
+            awaitingDragStarted = false;
+            scrolling = false;
+            isCircumstantialInvert = false;
+            pastFirstInvertThresh = false;
+
+            clearInterval(this._loopId);
+
+            clearInterval(pointerElemChangedInterval);
+            _clearAutoScrolls();
+            _cancelThrottle();
+
+            clearTimeout(this._dragStartTimer);
+
+            _cancelNextTick(this._cloneId);
+            _cancelNextTick(this._dragStartId);
+
+            // Unbind events
+            _off(document, 'mousemove', this._onTouchMove);
+
+
+            if (this.nativeDraggable) {
+                _off(document, 'drop', this);
+                _off(el, 'dragstart', this._onDragStart);
+                _off(document, 'dragover', this._handleAutoScroll);
+                _off(document, 'dragover', _checkAlignment);
+            }
+
+            this._offUpEvents();
+
+            if (evt) {
+                if (moved) {
+                    evt.cancelable && evt.preventDefault();
+                    !options.dropBubble && evt.stopPropagation();
+                }
+
+                ghostEl && ghostEl.parentNode && ghostEl.parentNode.removeChild(ghostEl);
+
+                if (rootEl === parentEl || (putSortable && putSortable.lastPutMode !== 'clone')) {
+                    // Remove clone
+                    cloneEl && cloneEl.parentNode && cloneEl.parentNode.removeChild(cloneEl);
+                }
+
+                if (dragEl) {
+                    if (this.nativeDraggable) {
+                        _off(dragEl, 'dragend', this);
+                    }
+
+                    _disableDraggable(dragEl);
+                    dragEl.style['will-change'] = '';
+
+                    // Remove class's
+                    _toggleClass(dragEl, putSortable ? putSortable.options.ghostClass : this.options.ghostClass, false);
+                    _toggleClass(dragEl, this.options.chosenClass, false);
+
+                    // Drag stop event
+                    _dispatchEvent(this, rootEl, 'unchoose', dragEl, parentEl, rootEl, oldIndex, null, evt);
+
+                    if (rootEl !== parentEl) {
+                        newIndex = _index(dragEl, options.draggable);
+
+                        if (newIndex >= 0) {
+                            // Add event
+                            _dispatchEvent(null, parentEl, 'add', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
+
+                            // Remove event
+                            _dispatchEvent(this, rootEl, 'remove', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
+
+                            // drag from one list and drop into another
+                            _dispatchEvent(null, parentEl, 'sort', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
+                            _dispatchEvent(this, rootEl, 'sort', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
+                        }
+
+                        putSortable && putSortable.save();
+                    }
+                    else {
+                        if (dragEl.nextSibling !== nextEl) {
+                            // Get the index of the dragged element within its parent
+                            newIndex = _index(dragEl, options.draggable);
+
+                            if (newIndex >= 0) {
+                                // drag & drop within the same list
+                                _dispatchEvent(this, rootEl, 'update', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
+                                _dispatchEvent(this, rootEl, 'sort', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
+                            }
+                        }
+                    }
+
+                    if (Sortable.active) {
+                        /* jshint eqnull:true */
+                        if (newIndex == null || newIndex === -1) {
+                            newIndex = oldIndex;
+                        }
+
+                        _dispatchEvent(this, rootEl, 'end', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
+
+                        // Save sorting
+                        this.save();
+                    }
+                }
+
+            }
+            this._nulling();
+        },
+
+        _nulling: function() {
+            rootEl =
+                dragEl =
+                    parentEl =
+                        ghostEl =
+                            nextEl =
+                                cloneEl =
+                                    lastDownEl =
+
+                                        scrollEl =
+                                            scrollParentEl =
+                                                autoScrolls.length =
+
+                                                    pointerElemChangedInterval =
+                                                        lastPointerElemX =
+                                                            lastPointerElemY =
+
+                                                                tapEvt =
+                                                                    touchEvt =
+
+                                                                        moved =
+                                                                            newIndex =
+                                                                                oldIndex =
+
+                                                                                    lastTarget =
+                                                                                        lastDirection =
+
+                                                                                            forRepaintDummy =
+                                                                                                realDragElRect =
+
+                                                                                                    putSortable =
+                                                                                                        activeGroup =
+                                                                                                            Sortable.active = null;
+
+            savedInputChecked.forEach(function (el) {
+                el.checked = true;
+            });
+
+            savedInputChecked.length = 0;
+        },
+
+        handleEvent: function (/**Event*/evt) {
+            switch (evt.type) {
+                case 'drop':
+                case 'dragend':
+                    this._onDrop(evt);
+                    break;
+
+                case 'dragenter':
+                case 'dragover':
+                    if (dragEl) {
+                        this._onDragOver(evt);
+                        _globalDragOver(evt);
+                    }
+                    break;
+
+                case 'selectstart':
+                    evt.preventDefault();
+                    break;
+            }
+        },
+
+
+        /**
+         * Serializes the item into an array of string.
+         * @returns {String[]}
+         */
+        toArray: function () {
+            var order = [],
+                el,
+                children = this.el.children,
+                i = 0,
+                n = children.length,
+                options = this.options;
+
+            for (; i < n; i++) {
+                el = children[i];
+                if (_closest(el, options.draggable, this.el, false)) {
+                    order.push(el.getAttribute(options.dataIdAttr) || _generateId(el));
+                }
+            }
+
+            return order;
+        },
+
+
+        /**
+         * Sorts the elements according to the array.
+         * @param  {String[]}  order  order of the items
+         */
+        sort: function (order) {
+            var items = {}, rootEl = this.el;
+
+            this.toArray().forEach(function (id, i) {
+                var el = rootEl.children[i];
+
+                if (_closest(el, this.options.draggable, rootEl, false)) {
+                    items[id] = el;
+                }
+            }, this);
+
+            order.forEach(function (id) {
+                if (items[id]) {
+                    rootEl.removeChild(items[id]);
+                    rootEl.appendChild(items[id]);
+                }
+            });
+        },
+
+
+        /**
+         * Save the current sorting
+         */
+        save: function () {
+            var store = this.options.store;
+            store && store.set && store.set(this);
+        },
+
+
+        /**
+         * For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.
+         * @param   {HTMLElement}  el
+         * @param   {String}       [selector]  default: `options.draggable`
+         * @returns {HTMLElement|null}
+         */
+        closest: function (el, selector) {
+            return _closest(el, selector || this.options.draggable, this.el, false);
+        },
+
+
+        /**
+         * Set/get option
+         * @param   {string} name
+         * @param   {*}      [value]
+         * @returns {*}
+         */
+        option: function (name, value) {
+            var options = this.options;
+
+            if (value === void 0) {
+                return options[name];
+            } else {
+                options[name] = value;
+
+                if (name === 'group') {
+                    _prepareGroup(options);
+                }
+            }
+        },
+
+
+        /**
+         * Destroy
+         */
+        destroy: function () {
+            var el = this.el;
+
+            el[expando] = null;
+
+            _off(el, 'mousedown', this._onTapStart);
+            _off(el, 'touchstart', this._onTapStart);
+            _off(el, 'pointerdown', this._onTapStart);
+
+            if (this.nativeDraggable) {
+                _off(el, 'dragover', this);
+                _off(el, 'dragenter', this);
+            }
+            // Remove draggable attributes
+            Array.prototype.forEach.call(el.querySelectorAll('[draggable]'), function (el) {
+                el.removeAttribute('draggable');
+            });
+
+            this._onDrop();
+
+            sortables.splice(sortables.indexOf(this.el), 1);
+
+            this.el = el = null;
+        },
+
+        _hideClone: function() {
+            if (!cloneEl.cloneHidden) {
+                _css(cloneEl, 'display', 'none');
+                cloneEl.cloneHidden = true;
+                if (cloneEl.parentNode && this.options.removeCloneOnHide) {
+                    cloneEl.parentNode.removeChild(cloneEl);
+                }
+            }
+        },
+
+        _showClone: function(putSortable) {
+            if (putSortable.lastPutMode !== 'clone') {
+                this._hideClone();
+                return;
+            }
+
+            if (cloneEl.cloneHidden) {
+                // show clone at dragEl or original position
+                if (rootEl.contains(dragEl) && !this.options.group.revertClone) {
+                    rootEl.insertBefore(cloneEl, dragEl);
+                } else if (nextEl) {
+                    rootEl.insertBefore(cloneEl, nextEl);
+                } else {
+                    rootEl.appendChild(cloneEl);
+                }
+
+                if (this.options.group.revertClone) {
+                    this._animate(dragEl, cloneEl);
+                }
+                _css(cloneEl, 'display', '');
+                cloneEl.cloneHidden = false;
+            }
+        }
+    };
+
+    function _closest(/**HTMLElement*/el, /**String*/selector, /**HTMLElement*/ctx, includeCTX) {
+        if (el) {
+            ctx = ctx || document;
+
+            do {
+                if (
+                    selector != null &&
+                    (
+                        selector[0] === '>' && el.parentNode === ctx && _matches(el, selector.substring(1)) ||
+                        _matches(el, selector)
+                    ) ||
+                    includeCTX && el === ctx
+                ) {
+                    return el;
+                }
+
+                if (el === ctx) break;
+                /* jshint boss:true */
+            } while (el = _getParentOrHost(el));
+        }
+
+        return null;
+    }
+
+
+    function _getParentOrHost(el) {
+        return (el.host && el !== document && el.host.nodeType)
+            ? el.host
+            : el.parentNode;
+    }
+
+
+    function _globalDragOver(/**Event*/evt) {
+        if (evt.dataTransfer) {
+            evt.dataTransfer.dropEffect = 'move';
+        }
+        evt.cancelable && evt.preventDefault();
+    }
+
+
+    function _on(el, event, fn) {
+        el.addEventListener(event, fn, captureMode);
+    }
+
+
+    function _off(el, event, fn) {
+        el.removeEventListener(event, fn, captureMode);
+    }
+
+
+    function _toggleClass(el, name, state) {
+        if (el && name) {
+            if (el.classList) {
+                el.classList[state ? 'add' : 'remove'](name);
+            }
+            else {
+                var className = (' ' + el.className + ' ').replace(R_SPACE, ' ').replace(' ' + name + ' ', ' ');
+                el.className = (className + (state ? ' ' + name : '')).replace(R_SPACE, ' ');
+            }
+        }
+    }
+
+
+    function _css(el, prop, val) {
+        var style = el && el.style;
+
+        if (style) {
+            if (val === void 0) {
+                if (document.defaultView && document.defaultView.getComputedStyle) {
+                    val = document.defaultView.getComputedStyle(el, '');
+                }
+                else if (el.currentStyle) {
+                    val = el.currentStyle;
+                }
+
+                return prop === void 0 ? val : val[prop];
+            }
+            else {
+                if (!(prop in style) && prop.indexOf('webkit') === -1) {
+                    prop = '-webkit-' + prop;
+                }
+
+                style[prop] = val + (typeof val === 'string' ? '' : 'px');
+            }
+        }
+    }
+
+    function _matrix(el) {
+        var appliedTransforms = '';
+        do {
+            var transform = _css(el, 'transform');
+
+            if (transform && transform !== 'none') {
+                appliedTransforms = transform + ' ' + appliedTransforms;
+            }
+            /* jshint boss:true */
+        } while (el = el.parentNode);
+
+        if (window.DOMMatrix) {
+            return new DOMMatrix(appliedTransforms);
+        } else if (window.WebKitCSSMatrix) {
+            return new WebKitCSSMatrix(appliedTransforms);
+        } else if (window.CSSMatrix) {
+            return new CSSMatrix(appliedTransforms);
+        }
+    }
+
+
+    function _find(ctx, tagName, iterator) {
+        if (ctx) {
+            var list = ctx.getElementsByTagName(tagName), i = 0, n = list.length;
+
+            if (iterator) {
+                for (; i < n; i++) {
+                    iterator(list[i], i);
+                }
+            }
+
+            return list;
+        }
+
+        return [];
+    }
+
+
+
+    function _dispatchEvent(sortable, rootEl, name, targetEl, toEl, fromEl, startIndex, newIndex, originalEvt) {
+        sortable = (sortable || rootEl[expando]);
+        var evt,
+            options = sortable.options,
+            onName = 'on' + name.charAt(0).toUpperCase() + name.substr(1);
+        // Support for new CustomEvent feature
+        if (window.CustomEvent && !IE11OrLess && !Edge) {
+            evt = new CustomEvent(name, {
+                bubbles: true,
+                cancelable: true
+            });
+        } else {
+            evt = document.createEvent('Event');
+            evt.initEvent(name, true, true);
+        }
+
+        evt.to = toEl || rootEl;
+        evt.from = fromEl || rootEl;
+        evt.item = targetEl || rootEl;
+        evt.clone = cloneEl;
+
+        evt.oldIndex = startIndex;
+        evt.newIndex = newIndex;
+
+        evt.originalEvent = originalEvt;
+
+        if (rootEl) {
+            rootEl.dispatchEvent(evt);
+        }
+
+        if (options[onName]) {
+            options[onName].call(sortable, evt);
+        }
+    }
+
+
+    function _onMove(fromEl, toEl, dragEl, dragRect, targetEl, targetRect, originalEvt, willInsertAfter) {
+        var evt,
+            sortable = fromEl[expando],
+            onMoveFn = sortable.options.onMove,
+            retVal;
+        // Support for new CustomEvent feature
+        if (window.CustomEvent && !IE11OrLess && !Edge) {
+            evt = new CustomEvent('move', {
+                bubbles: true,
+                cancelable: true
+            });
+        } else {
+            evt = document.createEvent('Event');
+            evt.initEvent('move', true, true);
+        }
+
+        evt.to = toEl;
+        evt.from = fromEl;
+        evt.dragged = dragEl;
+        evt.draggedRect = dragRect;
+        evt.related = targetEl || toEl;
+        evt.relatedRect = targetRect || _getRect(toEl);
+        evt.willInsertAfter = willInsertAfter;
+
+        evt.originalEvent = originalEvt;
+
+        fromEl.dispatchEvent(evt);
+
+        if (onMoveFn) {
+            retVal = onMoveFn.call(sortable, evt, originalEvt);
+        }
+
+        return retVal;
+    }
+
+    function _disableDraggable(el) {
+        el.draggable = false;
+    }
+
+    function _unsilent() {
+        _silent = false;
+    }
+
+    /**
+     * Gets nth child of el, ignoring hidden children, sortable's elements (does not ignore clone if it's visible)
+     * and non-draggable elements
+     * @param  {HTMLElement} el       The parent element
+     * @param  {Number} childNum      The index of the child
+     * @param  {Object} options       Parent Sortable's options
+     * @return {HTMLElement}          The child at index childNum, or null if not found
+     */
+    function _getChild(el, childNum, options) {
+        var currentChild = 0,
+            i = 0,
+            children = el.children;
+
+        while (i < children.length) {
+            if (
+                children[i].style.display !== 'none' &&
+                children[i] !== ghostEl &&
+                children[i] !== dragEl &&
+                _closest(children[i], options.draggable, el, false)
+            ) {
+                if (currentChild === childNum) {
+                    return children[i];
+                }
+                currentChild++;
+            }
+
+            i++;
+        }
+        return null;
+    }
+
+    /**
+     * Gets the last child in the el, ignoring ghostEl or invisible elements (clones)
+     * @param  {HTMLElement} el       Parent element
+     * @return {HTMLElement}          The last child, ignoring ghostEl
+     */
+    function _lastChild(el) {
+        var last = el.lastElementChild;
+
+        while (last === ghostEl || last.style.display === 'none') {
+            last = last.previousElementSibling;
+
+            if (!last) break;
+        }
+
+        return last || null;
+    }
+
+    function _ghostIsLast(evt, axis, el) {
+        var elRect = _getRect(_lastChild(el)),
+            mouseOnAxis = axis === 'vertical' ? evt.clientY : evt.clientX,
+            mouseOnOppAxis = axis === 'vertical' ? evt.clientX : evt.clientY,
+            targetS2 = axis === 'vertical' ? elRect.bottom : elRect.right,
+            targetS1Opp = axis === 'vertical' ? elRect.left : elRect.top,
+            targetS2Opp = axis === 'vertical' ? elRect.right : elRect.bottom,
+            spacer = 10;
+
+        return (
+            axis === 'vertical' ?
+                (mouseOnOppAxis > targetS2Opp + spacer || mouseOnOppAxis <= targetS2Opp && mouseOnAxis > targetS2 && mouseOnOppAxis >= targetS1Opp) :
+                (mouseOnAxis > targetS2 && mouseOnOppAxis > targetS1Opp || mouseOnAxis <= targetS2 && mouseOnOppAxis > targetS2Opp + spacer)
+        );
+    }
+
+    function _getSwapDirection(evt, target, axis, swapThreshold, invertedSwapThreshold, invertSwap, isLastTarget) {
+        var targetRect = _getRect(target),
+            mouseOnAxis = axis === 'vertical' ? evt.clientY : evt.clientX,
+            targetLength = axis === 'vertical' ? targetRect.height : targetRect.width,
+            targetS1 = axis === 'vertical' ? targetRect.top : targetRect.left,
+            targetS2 = axis === 'vertical' ? targetRect.bottom : targetRect.right,
+            dragRect = _getRect(dragEl),
+            invert = false;
+
+
+        if (!invertSwap) {
+            // Never invert or create dragEl shadow when target movemenet causes mouse to move past the end of regular swapThreshold
+            if (isLastTarget && targetMoveDistance < targetLength * swapThreshold) { // multiplied only by swapThreshold because mouse will already be inside target by (1 - threshold) * targetLength / 2
+                // check if past first invert threshold on side opposite of lastDirection
+                if (!pastFirstInvertThresh &&
+                    (lastDirection === 1 ?
+                            (
+                                mouseOnAxis > targetS1 + targetLength * invertedSwapThreshold / 2
+                            ) :
+                            (
+                                mouseOnAxis < targetS2 - targetLength * invertedSwapThreshold / 2
+                            )
+                    )
+                )
+                {
+                    // past first invert threshold, do not restrict inverted threshold to dragEl shadow
+                    pastFirstInvertThresh = true;
+                }
+
+                if (!pastFirstInvertThresh) {
+                    var dragS1 = axis === 'vertical' ? dragRect.top : dragRect.left,
+                        dragS2 = axis === 'vertical' ? dragRect.bottom : dragRect.right;
+                    // dragEl shadow (target move distance shadow)
+                    if (
+                        lastDirection === 1 ?
+                            (
+                                mouseOnAxis < targetS1 + targetMoveDistance // over dragEl shadow
+                            ) :
+                            (
+                                mouseOnAxis > targetS2 - targetMoveDistance
+                            )
+                    )
+                    {
+                        return lastDirection * -1;
+                    }
+                } else {
+                    invert = true;
+                }
+            } else {
+                // Regular
+                if (
+                    mouseOnAxis > targetS1 + (targetLength * (1 - swapThreshold) / 2) &&
+                    mouseOnAxis < targetS2 - (targetLength * (1 - swapThreshold) / 2)
+                ) {
+                    return ((mouseOnAxis > targetS1 + targetLength / 2) ? -1 : 1);
+                }
+            }
+        }
+
+        invert = invert || invertSwap;
+
+        if (invert) {
+            // Invert of regular
+            if (
+                mouseOnAxis < targetS1 + (targetLength * invertedSwapThreshold / 2) ||
+                mouseOnAxis > targetS2 - (targetLength * invertedSwapThreshold / 2)
+            )
+            {
+                return ((mouseOnAxis > targetS1 + targetLength / 2) ? 1 : -1);
+            }
+        }
+
+        return 0;
+    }
+
+    /**
+     * Gets the direction dragEl must be swapped relative to target in order to make it
+     * seem that dragEl has been "inserted" into that element's position
+     * @param  {HTMLElement} target       The target whose position dragEl is being inserted at
+     * @param  {Object} options           options of the parent sortable
+     * @return {Number}                   Direction dragEl must be swapped
+     */
+    function _getInsertDirection(target, options) {
+        var dragElIndex = _index(dragEl, options.draggable),
+            targetIndex = _index(target, options.draggable);
+
+        if (dragElIndex < targetIndex) {
+            return 1;
+        } else {
+            return -1;
+        }
+    }
+
+
+    /**
+     * Generate id
+     * @param   {HTMLElement} el
+     * @returns {String}
+     * @private
+     */
+    function _generateId(el) {
+        var str = el.tagName + el.className + el.src + el.href + el.textContent,
+            i = str.length,
+            sum = 0;
+
+        while (i--) {
+            sum += str.charCodeAt(i);
+        }
+
+        return sum.toString(36);
+    }
+
+    /**
+     * Returns the index of an element within its parent for a selected set of
+     * elements
+     * @param  {HTMLElement} el
+     * @param  {selector} selector
+     * @return {number}
+     */
+    function _index(el, selector) {
+        var index = 0;
+
+        if (!el || !el.parentNode) {
+            return -1;
+        }
+
+        while (el && (el = el.previousElementSibling)) {
+            if ((el.nodeName.toUpperCase() !== 'TEMPLATE') && el !== cloneEl) {
+                index++;
+            }
+        }
+
+        return index;
+    }
+
+    function _matches(/**HTMLElement*/el, /**String*/selector) {
+        if (el) {
+            try {
+                if (el.matches) {
+                    return el.matches(selector);
+                } else if (el.msMatchesSelector) {
+                    return el.msMatchesSelector(selector);
+                } else if (el.webkitMatchesSelector) {
+                    return el.webkitMatchesSelector(selector);
+                }
+            } catch(_) {
+                return false;
+            }
+        }
+
+        return false;
+    }
+
+    var _throttleTimeout;
+    function _throttle(callback, ms) {
+        return function () {
+            if (!_throttleTimeout) {
+                var args = arguments,
+                    _this = this;
+
+                _throttleTimeout = setTimeout(function () {
+                    if (args.length === 1) {
+                        callback.call(_this, args[0]);
+                    } else {
+                        callback.apply(_this, args);
+                    }
+
+                    _throttleTimeout = void 0;
+                }, ms);
+            }
+        };
+    }
+
+    function _cancelThrottle() {
+        clearTimeout(_throttleTimeout);
+        _throttleTimeout = void 0;
+    }
+
+    function _extend(dst, src) {
+        if (dst && src) {
+            for (var key in src) {
+                if (src.hasOwnProperty(key)) {
+                    dst[key] = src[key];
+                }
+            }
+        }
+
+        return dst;
+    }
+
+    function _clone(el) {
+        if (Polymer && Polymer.dom) {
+            return Polymer.dom(el).cloneNode(true);
+        }
+        else if ($) {
+            return $(el).clone(true)[0];
+        }
+        else {
+            return el.cloneNode(true);
+        }
+    }
+
+    function _saveInputCheckedState(root) {
+        savedInputChecked.length = 0;
+
+        var inputs = root.getElementsByTagName('input');
+        var idx = inputs.length;
+
+        while (idx--) {
+            var el = inputs[idx];
+            el.checked && savedInputChecked.push(el);
+        }
+    }
+
+    function _nextTick(fn) {
+        return setTimeout(fn, 0);
+    }
+
+    function _cancelNextTick(id) {
+        return clearTimeout(id);
+    }
+
+
+    /**
+     * Returns the "bounding client rect" of given element
+     * @param  {HTMLElement} el                The element whose boundingClientRect is wanted
+     * @param  {[HTMLElement]} container       the parent the element will be placed in
+     * @param  {[Boolean]} adjustForTransform  Whether the rect should compensate for parent's transform
+     * (used for fixed positioning on el)
+     * @return {Object}                        The boundingClientRect of el
+     */
+    function _getRect(el, container, adjustForTransform) {
+        if (!el.getBoundingClientRect && el !== win) return;
+
+        var elRect,
+            top,
+            left,
+            bottom,
+            right,
+            height,
+            width;
+
+        if (el !== win) {
+            elRect = el.getBoundingClientRect();
+            top = elRect.top;
+            left = elRect.left;
+            bottom = elRect.bottom;
+            right = elRect.right;
+            height = elRect.height;
+            width = elRect.width;
+        } else {
+            top = 0;
+            left = 0;
+            bottom = window.innerHeight;
+            right = window.innerWidth;
+            height = window.innerHeight;
+            width = window.innerWidth;
+        }
+
+        if (adjustForTransform && el !== win) {
+            // Adjust for translate()
+            container = container || el.parentNode;
+
+            // solves #1123 (see: https://stackoverflow.com/a/37953806/6088312)
+            // Not needed on <= IE11
+            if (!IE11OrLess) {
+                do {
+                    if (container && container.getBoundingClientRect && _css(container, 'transform') !== 'none') {
+                        var containerRect = container.getBoundingClientRect();
+
+                        // Set relative to edges of padding box of container
+                        top -= containerRect.top + parseInt(_css(container, 'border-top-width'));
+                        left -= containerRect.left + parseInt(_css(container, 'border-left-width'));
+                        bottom = top + elRect.height;
+                        right = left + elRect.width;
+
+                        break;
+                    }
+                    /* jshint boss:true */
+                } while (container = container.parentNode);
+            }
+
+            // Adjust for scale()
+            var matrix = _matrix(el),
+                scaleX = matrix && matrix.a,
+                scaleY = matrix && matrix.d;
+
+            if (matrix) {
+                top /= scaleY;
+                left /= scaleX;
+
+                width /= scaleX;
+                height /= scaleY;
+
+                bottom = top + height;
+                right = left + width;
+            }
+        }
+
+        return {
+            top: top,
+            left: left,
+            bottom: bottom,
+            right: right,
+            width: width,
+            height: height
+        };
+    }
+
+
+    /**
+     * Checks if a side of an element is scrolled past a side of it's parents
+     * @param  {HTMLElement}  el       The element who's side being scrolled out of view is in question
+     * @param  {String}       side     Side of the element in question ('top', 'left', 'right', 'bottom')
+     * @return {Boolean}               Whether the element is overflowing the viewport on the given side of it's parent
+     */
+    function _isScrolledPast(el, side) {
+        var parent = _getParentAutoScrollElement(parent, true),
+            elSide = _getRect(el)[side];
+
+        /* jshint boss:true */
+        while (parent) {
+            var parentSide = _getRect(parent)[side],
+                visible;
+
+            if (side === 'top' || side === 'left') {
+                visible = elSide >= parentSide;
+            } else {
+                visible = elSide <= parentSide;
+            }
+
+            if (!visible) return true;
+
+            if (parent === win) break;
+
+            parent = _getParentAutoScrollElement(parent, false);
+        }
+
+        return false;
+    }
+
+    // Fixed #973:
+    _on(document, 'touchmove', function(evt) {
+        if ((Sortable.active || awaitingDragStarted) && evt.cancelable) {
+            evt.preventDefault();
+        }
+    });
+
+
+    // Export utils
+    Sortable.utils = {
+        on: _on,
+        off: _off,
+        css: _css,
+        find: _find,
+        is: function (el, selector) {
+            return !!_closest(el, selector, el, false);
+        },
+        extend: _extend,
+        throttle: _throttle,
+        closest: _closest,
+        toggleClass: _toggleClass,
+        clone: _clone,
+        index: _index,
+        nextTick: _nextTick,
+        cancelNextTick: _cancelNextTick,
+        detectDirection: _detectDirection,
+        getChild: _getChild
+    };
+
+
+    /**
+     * Create sortable instance
+     * @param {HTMLElement}  el
+     * @param {Object}      [options]
+     */
+    Sortable.create = function (el, options) {
+        return new Sortable(el, options);
+    };
+
+
+    // Export
+    Sortable.version = '1.8.3';
+    return Sortable;
+});
\ No newline at end of file
diff --git a/public/js/vendor/jquery.fn.sortable.js b/public/js/vendor/jquery.fn.sortable.js
new file mode 100644
index 0000000..cd5189a
--- /dev/null
+++ b/public/js/vendor/jquery.fn.sortable.js
@@ -0,0 +1,76 @@
+(function (factory) {
+	"use strict";
+	var sortable,
+		jq,
+		_this = this
+	;
+
+	if (typeof define === "function" && define.amd) {
+		try {
+			define(["sortablejs", "jquery"], function(Sortable, $) {
+				sortable = Sortable;
+				jq = $;
+				checkErrors();
+				factory(Sortable, $);
+			});
+		} catch(err) {
+			checkErrors();
+		}
+		return;
+	} else if (typeof exports === 'object') {
+		try {
+			sortable = require('sortablejs');
+			jq = require('jquery');
+		} catch(err) { }
+	}
+
+	if (typeof jQuery === 'function' || typeof $ === 'function') {
+		jq = jQuery || $;
+	}
+
+	if (typeof Sortable !== 'undefined') {
+		sortable = Sortable;
+	}
+
+	function checkErrors() {
+		if (!jq) {
+			throw new Error('jQuery is required for jquery-sortablejs');
+		}
+
+		if (!sortable) {
+			throw new Error('SortableJS is required for jquery-sortablejs (https://github.com/SortableJS/Sortable)');
+		}
+	}
+	checkErrors();
+	factory(sortable, jq);
+})(function (Sortable, $) {
+	"use strict";
+
+	$.fn.sortable = function (options) {
+		var retVal,
+			args = arguments;
+
+		this.each(function () {
+			var $el = $(this),
+				sortable = $el.data('sortable');
+
+			if (!sortable && (options instanceof Object || !options)) {
+				sortable = new Sortable(this, options);
+				$el.data('sortable', sortable);
+			} else if (sortable) {
+				if (options === 'destroy') {
+					sortable.destroy();
+					$el.removeData('sortable');
+				} else if (options === 'widget') {
+					retVal = sortable;
+				} else if (typeof sortable[options] === 'function') {
+					retVal = sortable[options].apply(sortable, [].slice.call(args, 1));
+				} else if (options in sortable.options) {
+					retVal = sortable.option.apply(sortable, args);
+				}
+			}
+		});
+
+		return (retVal === void 0) ? this : retVal;
+	};
+});
\ No newline at end of file
diff --git a/run.php b/run.php
new file mode 100644
index 0000000..6cb81f8
--- /dev/null
+++ b/run.php
@@ -0,0 +1,10 @@
+<?php
+
+$this->provideHook('monitoring/HostActions');
+$this->provideHook('monitoring/ServiceActions');
+$this->provideHook('monitoring/DetailviewExtension');
+$this->provideHook('icingadb/HostActions');
+$this->provideHook('icingadb/ServiceActions');
+$this->provideHook('icingadb/icingadbSupport');
+$this->provideHook('icingadb/ServiceDetailExtension');
+//$this->provideHook('director/shipConfigFiles');
diff --git a/test/bootstrap.php b/test/bootstrap.php
new file mode 100644
index 0000000..e12df22
--- /dev/null
+++ b/test/bootstrap.php
@@ -0,0 +1,16 @@
+<?php
+
+use Icinga\Module\Businessprocess\Test\Bootstrap;
+
+call_user_func(function () {
+    $basedir = dirname(__DIR__);
+    if (! class_exists('PHPUnit_Framework_TestCase')) {
+        require_once __DIR__ . '/phpunit-compat.php';
+    }
+
+    $include_path = $basedir . '/vendor' . PATH_SEPARATOR . ini_get('include_path');
+    ini_set('include_path', $include_path);
+
+    require_once $basedir . '/library/Businessprocess/Test/Bootstrap.php';
+    Bootstrap::cli($basedir);
+});
diff --git a/test/config/authentication.ini b/test/config/authentication.ini
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/test/config/authentication.ini
diff --git a/test/config/config.ini b/test/config/config.ini
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/test/config/config.ini
diff --git a/test/config/modules/businessprocess/processes/also-with-semicolons.conf b/test/config/modules/businessprocess/processes/also-with-semicolons.conf
new file mode 100644
index 0000000..a023aaf
--- /dev/null
+++ b/test/config/modules/businessprocess/processes/also-with-semicolons.conf
@@ -0,0 +1,8 @@
+############################################
+#
+# Title: Also With Semicolons
+#
+############################################
+
+b\;ar =
+display 1;b\;ar;Bar
diff --git a/test/config/modules/businessprocess/processes/broken_wrong-operator.conf b/test/config/modules/businessprocess/processes/broken_wrong-operator.conf
new file mode 100644
index 0000000..9a58f23
--- /dev/null
+++ b/test/config/modules/businessprocess/processes/broken_wrong-operator.conf
@@ -0,0 +1 @@
+hostsAnd = host1;Hoststatus + host2;Hoststatus
\ No newline at end of file
diff --git a/test/config/modules/businessprocess/processes/combined.conf b/test/config/modules/businessprocess/processes/combined.conf
new file mode 100644
index 0000000..3b0fc5d
--- /dev/null
+++ b/test/config/modules/businessprocess/processes/combined.conf
@@ -0,0 +1 @@
+all = @simple_with-header:top & @simple_without-header:minTwo & @simple_with-header:minTwo
\ No newline at end of file
diff --git a/test/config/modules/businessprocess/processes/simple_with-header.conf b/test/config/modules/businessprocess/processes/simple_with-header.conf
new file mode 100644
index 0000000..802fbb2
--- /dev/null
+++ b/test/config/modules/businessprocess/processes/simple_with-header.conf
@@ -0,0 +1,13 @@
+############################################
+#
+# Title: Simple with header
+#
+############################################
+
+hostsAnd = host1;Hoststatus & host2;Hoststatus
+servicesOr = host1;ping | host2;ping | host3;ping
+singleHost = host1;Hoststatus
+minTwo = 2 of: hostsAnd + servicesOr + singleHost
+top = minTwo & hostsAnd & servicesOr
+display 1;top;Top Node
+info_url top;https://top.example.com/
diff --git a/test/config/modules/businessprocess/processes/simple_without-header.conf b/test/config/modules/businessprocess/processes/simple_without-header.conf
new file mode 100644
index 0000000..7d4efc6
--- /dev/null
+++ b/test/config/modules/businessprocess/processes/simple_without-header.conf
@@ -0,0 +1,6 @@
+hostsAnd = host1;Hoststatus & host2;Hoststatus
+servicesOr = host1;ping | host2;ping | host3;ping
+singleHost = host1;Hoststatus
+minTwo = 2 of: hostsAnd + servicesOr + singleHost
+top = minTwo & hostsAnd & servicesOr
+display 1;top;Top Node
\ No newline at end of file
diff --git a/test/config/modules/businessprocess/processes/with-semicolons.conf b/test/config/modules/businessprocess/processes/with-semicolons.conf
new file mode 100644
index 0000000..310d473
--- /dev/null
+++ b/test/config/modules/businessprocess/processes/with-semicolons.conf
@@ -0,0 +1,14 @@
+############################################
+#
+# Title: With Semicolons
+#
+############################################
+
+hostsAnd = host\;1;Hoststatus & host2;Hoststatus
+servicesOr = host\;1;pi;ng | host2;ping | host3;ping
+singleHost = host\;1;Hoststatus & to\;p & @also-with-semicolons:b\;ar
+to\;p = hostsAnd & servicesOr & singleHost
+display 1;to\;p;Top Node
+info_url to\;p;https://top.example.com/
+no\;alias =
+display 1;no\;alias;no;alias
diff --git a/test/php/library/Businessprocess/BpConfigTest.php b/test/php/library/Businessprocess/BpConfigTest.php
new file mode 100644
index 0000000..f42c58c
--- /dev/null
+++ b/test/php/library/Businessprocess/BpConfigTest.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class BpConfigTest extends BaseTestCase
+{
+    public function testJoinNodeName()
+    {
+        $this->assertSame(
+            'foo;bar',
+            BpConfig::joinNodeName('foo', 'bar')
+        );
+        $this->assertSame(
+            'foo\;bar',
+            BpConfig::joinNodeName('foo;bar')
+        );
+        $this->assertSame(
+            'foo\;bar;baroof',
+            BpConfig::joinNodeName('foo;bar', 'baroof')
+        );
+        $this->assertSame(
+            'foo\;bar;bar;oof',
+            BpConfig::joinNodeName('foo;bar', 'bar;oof')
+        );
+    }
+
+    public function testSplitNodeName()
+    {
+        $this->assertSame(
+            ['foo', 'bar'],
+            BpConfig::splitNodeName('foo;bar')
+        );
+        $this->assertSame(
+            ['foo;bar', null],
+            BpConfig::splitNodeName('foo\;bar')
+        );
+        $this->assertSame(
+            ['foo;bar', 'baroof'],
+            BpConfig::splitNodeName('foo\;bar;baroof')
+        );
+        $this->assertSame(
+            ['foo;bar', 'bar;oof'],
+            BpConfig::splitNodeName('foo\;bar;bar;oof')
+        );
+    }
+}
diff --git a/test/php/library/Businessprocess/BpNodeTest.php b/test/php/library/Businessprocess/BpNodeTest.php
new file mode 100644
index 0000000..c3da723
--- /dev/null
+++ b/test/php/library/Businessprocess/BpNodeTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess;
+
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class BpNodeTest extends BaseTestCase
+{
+    public function testThrowsNestingErrorWhenCheckedForLoops()
+    {
+        $this->expectException(\Icinga\Module\Businessprocess\Exception\NestingError::class);
+
+        /** @var BpNode $bpNode */
+        $bpNode = $this->makeLoop()->getNode('d');
+        $bpNode->checkForLoops();
+    }
+
+    public function testNestingErrorReportsFullLoop()
+    {
+        $this->expectException(\Icinga\Module\Businessprocess\Exception\NestingError::class);
+        $this->expectExceptionMessage('d -> a -> b -> c -> a');
+
+        /** @var BpNode $bpNode */
+        $bpNode = $this->makeLoop()->getNode('d');
+        $bpNode->checkForLoops();
+    }
+
+    public function testStateForALoopGivesUnknown()
+    {
+        $loop = $this->makeLoop();
+        /** @var BpNode $bpNode */
+        $bpNode = $loop->getNode('d');
+        $this->assertEquals(
+            'UNKNOWN',
+            $bpNode->getStateName()
+        );
+    }
+}
diff --git a/test/php/library/Businessprocess/HostNodeTest.php b/test/php/library/Businessprocess/HostNodeTest.php
new file mode 100644
index 0000000..ef4155d
--- /dev/null
+++ b/test/php/library/Businessprocess/HostNodeTest.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\HostNode;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class HostNodeTest extends BaseTestCase
+{
+    public function testReturnsCorrectHostName()
+    {
+        $this->assertEquals(
+            'localhost',
+            $this->localhost()->getHostname()
+        );
+    }
+
+    public function testReturnsCorrectIdentifierWhenCastedToString()
+    {
+        $this->assertEquals(
+            'localhost;Hoststatus',
+            $this->localhost()->getName()
+        );
+    }
+
+    public function testReturnsCorrectAlias()
+    {
+        $this->assertEquals(
+            'localhost',
+            $this->localhost()->getAlias()
+        );
+    }
+
+    public function testRendersCorrectLink()
+    {
+        $this->assertEquals(
+            '<a href="/icingaweb2/businessprocess/host/show?host=localhost">'
+            . 'localhost</a>',
+            $this->localhost()->getLink()->render()
+        );
+    }
+
+    public function testSettingAnInvalidStateFails()
+    {
+        $this->expectException(\Icinga\Exception\ProgrammingError::class);
+        $bp = new BpConfig();
+        $host = $bp->createHost('localhost')->setState(98);
+        $bp->createBp('p')->addChild($host)->getState();
+    }
+
+    /**
+     * @return HostNode
+     */
+    protected function localhost()
+    {
+        $bp = new BpConfig();
+        return (new HostNode((object) array(
+            'hostname' => 'localhost',
+            'state'    => 0,
+        )))->setBpConfig($bp)->setAlias('localhost');
+    }
+}
diff --git a/test/php/library/Businessprocess/MetadataTest.php b/test/php/library/Businessprocess/MetadataTest.php
new file mode 100644
index 0000000..765caf8
--- /dev/null
+++ b/test/php/library/Businessprocess/MetadataTest.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess;
+
+use Icinga\Module\Businessprocess\Metadata;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class MetadataTest extends BaseTestCase
+{
+    public function testDetectsMatchingPrefixes()
+    {
+        $meta = new Metadata('matchme');
+        $this->assertFalse(
+            $meta->nameIsPrefixedWithOneOf(array())
+        );
+        $this->assertFalse(
+            $meta->nameIsPrefixedWithOneOf(array('matchr', 'atchme'))
+        );
+        $this->assertTrue(
+            $meta->nameIsPrefixedWithOneOf(array('not', 'mat', 'yes'))
+        );
+        $this->assertTrue(
+            $meta->nameIsPrefixedWithOneOf(array('m'))
+        );
+        $this->assertTrue(
+            $meta->nameIsPrefixedWithOneOf(array('matchme'))
+        );
+        $this->assertFalse(
+            $meta->nameIsPrefixedWithOneOf(array('matchmenot'))
+        );
+    }
+}
diff --git a/test/php/library/Businessprocess/Operators/AndOperatorTest.php b/test/php/library/Businessprocess/Operators/AndOperatorTest.php
new file mode 100644
index 0000000..9e87cf1
--- /dev/null
+++ b/test/php/library/Businessprocess/Operators/AndOperatorTest.php
@@ -0,0 +1,214 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Operator;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+class AndOperatorTest extends BaseTestCase
+{
+    public function testTheOperatorCanBeParsed()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expressions = array(
+            'a = b;c',
+            'a = b;c & c;d & d;e',
+        );
+
+        foreach ($expressions as $expression) {
+            $this->assertInstanceOf(
+                'Icinga\\Module\\Businessprocess\\BpConfig',
+                $storage->loadFromString('dummy', $expression)
+            );
+        }
+    }
+
+    public function testThreeTimesCriticalIsCritical()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 2);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoTimesCriticalAndOkIsCritical()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 0);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testCriticalAndWarningAndOkIsCritical()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 0);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testUnknownAndWarningAndOkIsUnknown()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 3);
+
+        $this->assertEquals(
+            'UNKNOWN',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoTimesWarningAndOkIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 1);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testThreeTimesOkIsOk()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 0);
+        $bp->setNodeState('d;e', 0);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testSimpleAndOperationWorksCorrectly()
+    {
+        $bp = new BpConfig();
+        $bp->throwErrors();
+        $host = $bp->createHost('localhost')->setState(1);
+        $service = $bp->createService('localhost', 'ping')->setState(1);
+        $p = $bp->createBp('p');
+        $p->addChild($host);
+        $p->addChild($service);
+
+        $this->assertEquals(
+            'DOWN',
+            $host->getStateName()
+        );
+
+        $this->assertEquals(
+            'WARNING',
+            $service->getStateName()
+        );
+
+        $this->assertEquals(
+            'CRITICAL',
+            $p->getStateName()
+        );
+    }
+
+    public function testSimpleOrOperationWorksCorrectly()
+    {
+        $bp = new BpConfig();
+        $bp->throwErrors();
+        $host = $bp->createHost('localhost')->setState(1);
+        $service = $bp->createService('localhost', 'ping')->setState(1);
+        $p = $bp->createBp('p', '|');
+        $p->addChild($host);
+        $p->addChild($service);
+
+        $this->assertEquals('DOWN', $host->getStateName());
+        $this->assertEquals('WARNING', $service->getStateName());
+        $this->assertEquals('WARNING', $p->getStateName());
+    }
+
+    public function testPendingIsAccepted()
+    {
+        $bp = new BpConfig();
+        $host = $bp->createHost('localhost')->setState(99);
+        $service = $bp->createService('localhost', 'ping')->setState(99);
+        $p = $bp->createBp('p')
+            ->addChild($host)
+            ->addChild($service);
+
+        $this->assertEquals(
+            'PENDING',
+            $p->getStateName()
+        );
+    }
+
+    public function testWhetherWarningIsWorseThanPending()
+    {
+        $bp = new BpConfig();
+        $host = $bp->createHost('localhost')->setState(99);
+        $service = $bp->createService('localhost', 'ping')->setState(1);
+        $p = $bp->createBp('p')
+            ->addChild($host)
+            ->addChild($service);
+
+        $this->assertEquals(
+            'WARNING',
+            $p->getStateName()
+        );
+    }
+
+    public function testPendingIsWorseThanUpOrOk()
+    {
+        $bp = new BpConfig();
+        $host = $bp->createHost('localhost')->setState(99);
+        $service = $bp->createService('localhost', 'ping')->setState(0);
+        $p = $bp->createBp('p')
+            ->addChild($host)
+            ->addChild($service);
+
+        $this->assertEquals(
+            'PENDING',
+            $p->getStateName()
+        );
+
+        $p->clearState();
+        $host->setState(0);
+        $service->setState(99);
+
+        $this->assertEquals(
+            'PENDING',
+            $p->getStateName()
+        );
+    }
+
+    /**
+     * @return BpConfig
+     */
+    protected function getBp()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expression = 'a = b;c & c;d & d;e';
+        $bp = $storage->loadFromString('dummy', $expression);
+        $bp->createBp('b');
+        $bp->createBp('c');
+        $bp->createBp('d');
+
+        return $bp;
+    }
+}
diff --git a/test/php/library/Businessprocess/Operators/DegradedOperatorTest.php b/test/php/library/Businessprocess/Operators/DegradedOperatorTest.php
new file mode 100644
index 0000000..72ed5e5
--- /dev/null
+++ b/test/php/library/Businessprocess/Operators/DegradedOperatorTest.php
@@ -0,0 +1,159 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Operator;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+class DegradedOperatorTest extends BaseTestCase
+{
+    public function testDegradedOperatorCanBeParsed()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expressions = [
+            'a = b;c',
+            'a = b;c % c;d % d;e',
+        ];
+
+        foreach ($expressions as $expression) {
+            $this->assertInstanceOf(
+                'Icinga\\Module\\Businessprocess\\BpConfig',
+                $storage->loadFromString('dummy', $expression)
+            );
+        }
+    }
+
+    public function testThreeTimesCriticalIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 2);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoTimesCriticalAndOkIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 0);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testCriticalAndWarningAndOkIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 0);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testUnknownAndWarningAndOkIsUnknown()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 3);
+
+        $this->assertEquals(
+            'UNKNOWN',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoTimesWarningAndOkIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 1);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testUnknownAndWarningAndCriticalIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 3);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testThreeTimesOkIsOk()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 0);
+        $bp->setNodeState('d;e', 0);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testSimpleDegOperationWorksCorrectly()
+    {
+        $bp = new BpConfig();
+        $bp->throwErrors();
+        $host = $bp->createHost('localhost')->setState(0);
+        $service = $bp->createService('localhost', 'ping')->setState(2);
+        $p = $bp->createBp('p');
+        $p->setOperator('%');
+        $p->addChild($host);
+        $p->addChild($service);
+
+        $this->assertEquals(
+            'UP',
+            $host->getStateName()
+        );
+
+        $this->assertEquals(
+            'CRITICAL',
+            $service->getStateName()
+        );
+
+        $this->assertEquals(
+            'WARNING',
+            $p->getStateName()
+        );
+    }
+
+    /**
+     * @return BpConfig
+     */
+    protected function getBp()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expression = 'a = b;c % c;d % d;e';
+        $bp = $storage->loadFromString('dummy', $expression);
+        $bp->createBp('b');
+        $bp->createBp('c');
+        $bp->createBp('d');
+
+        return $bp;
+    }
+}
diff --git a/test/php/library/Businessprocess/Operators/MinOperatorTest.php b/test/php/library/Businessprocess/Operators/MinOperatorTest.php
new file mode 100644
index 0000000..986589a
--- /dev/null
+++ b/test/php/library/Businessprocess/Operators/MinOperatorTest.php
@@ -0,0 +1,174 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Operator;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+class MinOperatorTest extends BaseTestCase
+{
+    public function testTheOperatorCanBeParsed()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expressions = array(
+            'a = 1 of: b;c',
+            'a = 2 of: b;c + c;d + d;e',
+        );
+        $this->getName();
+        foreach ($expressions as $expression) {
+            $this->assertInstanceOf(
+                'Icinga\\Module\\Businessprocess\\BpConfig',
+                $storage->loadFromString('dummy', $expression)
+            );
+        }
+    }
+    public function testTwoOfThreeTimesCriticalAreAtLeastCritical()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 2);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoOfTwoTimesCriticalAndUnknownAreAtLeastCritical()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 3);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoOfCriticalAndWarningAndOkAreAtLeastCritical()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 0);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoOfUnknownAndWarningAndCriticalAreAtLeastCritical()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 3);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoOfTwoTimesWarningAndUnknownAreAtLeastUnknown()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 3);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 1);
+
+        $this->assertEquals(
+            'UNKNOWN',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoOfThreeTimesOkAreAtLeastOk()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 0);
+        $bp->setNodeState('d;e', 0);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTenWithAllOk()
+    {
+        $bp = $this->getBp(10, 9, 0);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTenWithOnlyTwoCritical()
+    {
+        $bp = $this->getBp(10, 8, 0);
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 2);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTenWithThreeCritical()
+    {
+        $bp = $this->getBp(10, 8, 0);
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 2);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTenWithThreeWarning()
+    {
+        $bp = $this->getBp(10, 8, 0);
+        $bp->setNodeState('b;c', 1);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 1);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    /**
+     * @return BpConfig
+     */
+    protected function getBp($count = 3, $min = 2, $defaultState = null)
+    {
+        $names = array();
+        $a = 97;
+        for ($i = 1; $i <= $count; $i++) {
+            $names[] = chr($a + $i) . ';' . chr($a + $i + 1);
+        }
+
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expression = sprintf('a = %d of: %s', $min, join(' + ', $names));
+        $bp = $storage->loadFromString('dummy', $expression);
+        foreach ($names as $n) {
+            if ($defaultState !== null) {
+                $bp->setNodeState($n, $defaultState);
+            }
+        }
+
+        return $bp;
+    }
+}
diff --git a/test/php/library/Businessprocess/Operators/NotOperatorTest.php b/test/php/library/Businessprocess/Operators/NotOperatorTest.php
new file mode 100644
index 0000000..fb62545
--- /dev/null
+++ b/test/php/library/Businessprocess/Operators/NotOperatorTest.php
@@ -0,0 +1,151 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Operator;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+class NotOperatorTest extends BaseTestCase
+{
+    public function testNegationOperatorsCanBeParsed()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expressions = array(
+            'a = !b;c',
+            'a = ! b;c',
+            'a = b;c ! c;d ! d;e',
+            'a = ! b;c ! c;d ! d;e !',
+        );
+
+        foreach ($expressions as $expression) {
+            $this->assertInstanceOf(
+                'Icinga\\Module\\Businessprocess\\BpConfig',
+                $storage->loadFromString('dummy', $expression)
+            );
+        }
+    }
+
+    public function testASimpleNegationGivesTheCorrectResult()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expression = 'a = !b;c';
+        $bp = $storage->loadFromString('dummy', $expression);
+        $a = $bp->getNode('a');
+        $b = $bp->getNode('b;c')->setState(3);
+        $this->assertEquals(
+            'OK',
+            $a->getStateName()
+        );
+
+        $a->clearState();
+        $b->setState(0);
+        $this->assertEquals(
+            'CRITICAL',
+            $a->getStateName()
+        );
+    }
+
+    public function testThreeTimesCriticalIsOk()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 2);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testThreeTimesUnknownIsOk()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 3);
+        $bp->setNodeState('c;d', 3);
+        $bp->setNodeState('d;e', 3);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testThreeTimesWarningIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 1);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 1);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testThreeTimesOkIsCritical()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 0);
+        $bp->setNodeState('d;e', 0);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testNotOkAndWarningAndCriticalIsOk()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testNotWarningAndUnknownAndCriticalIsOk()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 3);
+        $bp->setNodeState('c;d', 2);
+        $bp->setNodeState('d;e', 1);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testNotTwoTimesWarningAndOkIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 1);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    /**
+     * @return BpConfig
+     */
+    protected function getBp()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expression = 'a = ! b;c ! c;d ! d;e';
+        $bp = $storage->loadFromString('dummy', $expression);
+
+        return $bp;
+    }
+}
diff --git a/test/php/library/Businessprocess/Operators/OrOperatorTest.php b/test/php/library/Businessprocess/Operators/OrOperatorTest.php
new file mode 100644
index 0000000..02043d0
--- /dev/null
+++ b/test/php/library/Businessprocess/Operators/OrOperatorTest.php
@@ -0,0 +1,116 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Operator;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+class OrOperatorTest extends BaseTestCase
+{
+    public function testTheOperatorCanBeParsed()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expressions = array(
+            'a = b;c',
+            'a = b;c | c;d | d;e',
+        );
+
+        foreach ($expressions as $expression) {
+            $this->assertInstanceOf(
+                'Icinga\\Module\\Businessprocess\\BpConfig',
+                $storage->loadFromString('dummy', $expression)
+            );
+        }
+    }
+
+    public function testThreeTimesCriticalIsCritical()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 2);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'CRITICAL',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoTimesCriticalOrUnknownIsUnknown()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 3);
+        $bp->setNodeState('d;e', 2);
+
+        $this->assertEquals(
+            'UNKNOWN',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testCriticalOrWarningOrOkIsOk()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 0);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testUnknownOrWarningOrCriticalIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 2);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 3);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testTwoTimesWarningAndOkIsOk()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 0);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 1);
+
+        $this->assertEquals(
+            'OK',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    public function testThreeTimesWarningIsWarning()
+    {
+        $bp = $this->getBp();
+        $bp->setNodeState('b;c', 1);
+        $bp->setNodeState('c;d', 1);
+        $bp->setNodeState('d;e', 1);
+
+        $this->assertEquals(
+            'WARNING',
+            $bp->getNode('a')->getStateName()
+        );
+    }
+
+    /**
+     * @return BpConfig
+     */
+    protected function getBp()
+    {
+        $storage = new LegacyStorage($this->emptyConfigSection());
+        $expression = 'a = b;c | c;d | d;e';
+        $bp = $storage->loadFromString('dummy', $expression);
+
+        return $bp;
+    }
+}
diff --git a/test/php/library/Businessprocess/ServiceNodeTest.php b/test/php/library/Businessprocess/ServiceNodeTest.php
new file mode 100644
index 0000000..62c1605
--- /dev/null
+++ b/test/php/library/Businessprocess/ServiceNodeTest.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess;
+
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\ServiceNode;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class ServiceNodeTest extends BaseTestCase
+{
+    public function testReturnsCorrectHostName()
+    {
+        $this->assertEquals(
+            'localhost',
+            $this->pingOnLocalhost()->getHostname()
+        );
+    }
+
+    public function testReturnsCorrectServiceDescription()
+    {
+        $this->assertEquals(
+            'ping <> pong',
+            $this->pingOnLocalhost()->getServiceDescription()
+        );
+    }
+
+    public function testReturnsCorrectAlias()
+    {
+        $this->assertEquals(
+            'ping <> pong on localhost',
+            $this->pingOnLocalhost()->getAlias()
+        );
+    }
+
+    public function testRendersCorrectLink()
+    {
+        $this->assertEquals(
+            '<a href="/icingaweb2/businessprocess/service/show?host=localhost&amp;service=ping%20%3C%3E%20pong">'
+            . 'ping &lt;&gt; pong on localhost</a>',
+            $this->pingOnLocalhost()->getLink()->render()
+        );
+    }
+
+    /**
+     * @return ServiceNode
+     */
+    protected function pingOnLocalhost()
+    {
+        $bp = new BpConfig();
+        return (new ServiceNode((object) array(
+            'hostname' => 'localhost',
+            'service'  => 'ping <> pong',
+            'state'    => 0,
+        )))->setBpConfig($bp)->setHostAlias('localhost')->setAlias('ping <> pong');
+    }
+}
diff --git a/test/php/library/Businessprocess/SimulationTest.php b/test/php/library/Businessprocess/SimulationTest.php
new file mode 100644
index 0000000..aefeb91
--- /dev/null
+++ b/test/php/library/Businessprocess/SimulationTest.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess;
+
+use Icinga\Module\Businessprocess\Simulation;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class SimulationTest extends BaseTestCase
+{
+    public function testSimulationInstantiation()
+    {
+        $class = 'Icinga\\Module\\Businessprocess\\Simulation';
+        $this->assertInstanceOf(
+            $class,
+            Simulation::create()
+        );
+    }
+
+    public function testAppliedSimulation()
+    {
+        $data = (object) array(
+            'state'        => 0,
+            'acknowledged' => false,
+            'in_downtime'  => false
+        );
+        $config = $this->makeInstance()->loadProcess('simple_with-header');
+        $simulation = Simulation::create(array(
+            'host1;Hoststatus' => $data
+        ));
+        $parent = $config->getBpNode('singleHost');
+
+        $config->applySimulation($simulation);
+        $this->assertEquals(
+            'OK',
+            $parent->getStateName()
+        );
+
+        $parent->clearState();
+        $data->state = 1;
+        $simulation->set('host1;Hoststatus', $data);
+        $config->applySimulation($simulation);
+        $this->assertEquals(
+            'CRITICAL',
+            $parent->getStateName()
+        );
+    }
+}
diff --git a/test/php/library/Businessprocess/Storage/LegacyStorageTest.php b/test/php/library/Businessprocess/Storage/LegacyStorageTest.php
new file mode 100644
index 0000000..75bfcd5
--- /dev/null
+++ b/test/php/library/Businessprocess/Storage/LegacyStorageTest.php
@@ -0,0 +1,175 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Storage;
+
+use Icinga\Module\Businessprocess\BpNode;
+use Icinga\Module\Businessprocess\ImportedNode;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+
+class LegacyStorageTest extends BaseTestCase
+{
+    private $processClass = 'Icinga\\Module\\Businessprocess\\BpConfig';
+
+    public function testCanBeInstantiatedWithAnEmptyConfigSection()
+    {
+        $baseClass = 'Icinga\\Module\\Businessprocess\\Storage\\LegacyStorage';
+        $this->assertInstanceOf(
+            $baseClass,
+            new LegacyStorage($this->emptyConfigSection())
+        );
+    }
+
+    public function testDefaultConfigDirIsDiscoveredCorrectly()
+    {
+        $this->assertEquals(
+            $this->getTestsBaseDir('config/modules/businessprocess/processes'),
+            $this->makeInstance()->getConfigDir()
+        );
+    }
+
+    public function testAllAvailableProcessesAreListed()
+    {
+        $keys = array_keys($this->makeInstance()->listProcesses());
+        $this->assertEquals(
+            array(
+                'also-with-semicolons',
+                'broken_wrong-operator',
+                'combined',
+                'simple_with-header',
+                'simple_without-header',
+                'with-semicolons'
+            ),
+            $keys
+        );
+    }
+
+    public function testHeaderTitlesAreRespectedInProcessList()
+    {
+        $keys = array_values($this->makeInstance()->listProcesses());
+        $this->assertEquals(
+            array(
+                'Also With Semicolons (also-with-semicolons)',
+                'broken_wrong-operator',
+                'combined',
+                'Simple with header (simple_with-header)',
+                'simple_without-header',
+                'With Semicolons (with-semicolons)'
+            ),
+            $keys
+        );
+    }
+
+    public function testProcessFilenameIsReturned()
+    {
+        $this->assertEquals(
+            $this->getTestsBaseDir('config/modules/businessprocess/processes/simple_with-header.conf'),
+            $this->makeInstance()->getFilename('simple_with-header')
+        );
+    }
+
+    public function testAnExistingProcessExists()
+    {
+        $this->assertTrue(
+            $this->makeInstance()->hasProcess('simple_with-header')
+        );
+    }
+
+    public function testAMissingProcessIsMissing()
+    {
+        $this->assertFalse(
+            $this->makeInstance()->hasProcess('simple_with-headerx')
+        );
+    }
+
+    public function testAValidProcessCanBeLoaded()
+    {
+        $this->assertInstanceOf(
+            $this->processClass,
+            $this->makeInstance()->loadProcess('simple_with-header')
+        );
+    }
+
+    public function testProcessConfigCanBeLoadedFromAString()
+    {
+        $this->assertInstanceOf(
+            $this->processClass,
+            $this->makeInstance()->loadFromString('dummy', 'a = Host1;ping & Host2;ping')
+        );
+    }
+
+    public function testFullProcessSourceCanBeFetched()
+    {
+        $this->assertEquals(
+            file_get_contents(
+                $this->getTestsBaseDir(
+                    'config/modules/businessprocess/processes/simple_with-header.conf'
+                )
+            ),
+            $this->makeInstance()->getSource('simple_with-header')
+        );
+    }
+
+    public function testTitleCanBeReadFromConfig()
+    {
+        $this->assertEquals(
+            'Simple with header',
+            $this->makeInstance()->loadProcess('simple_with-header')->getMetadata()->get('Title')
+        );
+    }
+
+    public function testInfoUrlBeReadFromConfig()
+    {
+        $this->assertEquals(
+            'https://top.example.com/',
+            $this->makeInstance()->loadProcess('simple_with-header')->getBpNode('top')->getInfoUrl()
+        );
+    }
+
+    public function testAConfiguredLoopCanBeParsed()
+    {
+        $this->assertInstanceOf(
+            $this->processClass,
+            $this->makeLoop()
+        );
+    }
+
+    public function testImportedNodesCanBeParsed()
+    {
+        $this->assertInstanceOf(
+            $this->processClass,
+            $this->makeInstance()->loadProcess('combined')
+        );
+    }
+
+    public function testConfigsWithNodesThatHaveSemicolonsInTheirNameCanBeParsed()
+    {
+        $bp = $this->makeInstance()->loadProcess('with-semicolons');
+
+        $this->assertInstanceOf($this->processClass, $bp);
+
+        $this->assertTrue($bp->hasNode('to\\;p'));
+        $this->assertSame(
+            'https://top.example.com/',
+            $bp->getNode('to\\;p')->getInfoUrl()
+        );
+
+        $this->assertTrue($bp->hasNode('host\;1;Hoststatus'));
+        $this->assertSame('host;1', $bp->getNode('host\;1;Hoststatus')->getHostname());
+
+        $this->assertTrue($bp->hasNode('host\;1;pi;ng'));
+        $this->assertSame('host;1', $bp->getNode('host\;1;pi;ng')->getHostname());
+        $this->assertSame('pi;ng', $bp->getNode('host\;1;pi;ng')->getServiceDescription());
+
+        $this->assertTrue($bp->hasNode('singleHost'));
+        $this->assertTrue($bp->getNode('singleHost')->hasChild('to\\;p'));
+        $this->assertInstanceOf(BpNode::class, $bp->getNode('to\\;p'));
+
+        $this->assertInstanceOf(BpNode::class, $bp->getNode('no\\;alias'));
+        $this->assertSame('no;alias', $bp->getNode('no\\;alias')->getAlias());
+
+        $this->assertTrue($bp->hasNode('@also-with-semicolons:b\;ar'));
+        $this->assertTrue($bp->getNode('singleHost')->hasChild('@also-with-semicolons:b\;ar'));
+        $this->assertInstanceOf(ImportedNode::class, $bp->getNode('@also-with-semicolons:b\;ar'));
+    }
+}
diff --git a/test/php/library/Businessprocess/Web/Component/TabsTest.php b/test/php/library/Businessprocess/Web/Component/TabsTest.php
new file mode 100644
index 0000000..f1181d2
--- /dev/null
+++ b/test/php/library/Businessprocess/Web/Component/TabsTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Web\Component;
+
+use Icinga\Module\Businessprocess\Web\Component\Tabs;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class TabsTest extends BaseTestCase
+{
+    public function testEmptyTabsCanBeInstantiated()
+    {
+        $this->assertInstanceOf(
+            'Icinga\Module\Businessprocess\Web\Component\Tabs',
+            new Tabs()
+        );
+    }
+}
diff --git a/test/phpunit-compat.php b/test/phpunit-compat.php
new file mode 100644
index 0000000..2b1be3a
--- /dev/null
+++ b/test/phpunit-compat.php
@@ -0,0 +1,10 @@
+<?php
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @codingStandardsIgnoreStart
+ */
+class PHPUnit_Framework_TestCase extends TestCase
+{
+}
diff --git a/test/setup_vendor.sh b/test/setup_vendor.sh
new file mode 100755
index 0000000..7d47ff8
--- /dev/null
+++ b/test/setup_vendor.sh
@@ -0,0 +1,82 @@
+#!/bin/bash
+
+set -ex
+
+MODULE_HOME=${MODULE_HOME:="$(dirname "$(readlink -f $(dirname "$0"))")"}
+PHP_VERSION="$(php -r 'echo phpversion();')"
+
+# see also .travis.yml
+ICINGAWEB_VERSION=${ICINGAWEB_VERSION:=2.5.1}
+ICINGAWEB_GITREF=${ICINGAWEB_GITREF:=}
+
+IPL_VERSION=${IPL_VERSION:=0.1.1}
+
+PHPCS_VERSION=${PHPCS_VERSION:=2.9.1}
+
+if [ "$PHP_VERSION" '<' 5.6.0 ]; then
+  PHPUNIT_VERSION=${PHPUNIT_VERSION:=4.8}
+else
+  PHPUNIT_VERSION=${PHPUNIT_VERSION:=5.7}
+fi
+
+cd ${MODULE_HOME}
+
+test -d vendor || mkdir vendor
+cd vendor/
+
+# icingaweb2
+if [ -n "$ICINGAWEB_GITREF" ]; then
+  icingaweb_path="icingaweb2"
+  test ! -L "$icingaweb_path" || rm "$icingaweb_path"
+
+  if [ ! -d "$icingaweb_path" ]; then
+    git clone https://github.com/Icinga/icingaweb2.git "$icingaweb_path"
+  fi
+
+  (
+    set -e
+    cd "$icingaweb_path"
+    git fetch -p
+    git checkout -f "$ICINGAWEB_GITREF"
+  )
+else
+  icingaweb_path="icingaweb2-${ICINGAWEB_VERSION}"
+  if [ ! -e "${icingaweb_path}".tar.gz ]; then
+    wget -O "${icingaweb_path}".tar.gz https://github.com/Icinga/icingaweb2/archive/v"${ICINGAWEB_VERSION}".tar.gz
+  fi
+  if [ ! -d "${icingaweb_path}" ]; then
+    tar xf "${icingaweb_path}".tar.gz
+  fi
+
+  rm -f icingaweb2
+  ln -svf "${icingaweb_path}" icingaweb2
+fi
+ln -svf "${icingaweb_path}"/library/Icinga
+ln -svf "${icingaweb_path}"/library/vendor/Zend
+
+# ipl
+ipl_path="ipl"
+if [ ! -d "$ipl_path" ]; then
+  git clone https://github.com/Icinga/icingaweb2-module-ipl.git "$ipl_path"
+fi
+(
+  set -e
+  cd "$ipl_path"
+  git fetch -p
+  git checkout -f "stable/$IPL_VERSION"
+)
+
+# phpunit
+phpunit_path="phpunit-${PHPUNIT_VERSION}"
+if [ ! -e "${phpunit_path}".phar ]; then
+  wget -O "${phpunit_path}".phar https://phar.phpunit.de/phpunit-${PHPUNIT_VERSION}.phar
+fi
+ln -svf "${phpunit_path}".phar phpunit.phar
+
+# phpcs
+phpcs_path="phpcs-${PHPCS_VERSION}"
+if [ ! -e "${phpcs_path}".phar ]; then
+  wget -O "${phpcs_path}".phar \
+    https://github.com/squizlabs/PHP_CodeSniffer/releases/download/${PHPCS_VERSION}/phpcs.phar
+fi
+ln -svf "${phpcs_path}".phar phpcs.phar