diff --git a/Admin/Install/db.json b/Admin/Install/db.json
new file mode 100644
index 0000000..b58dda1
--- /dev/null
+++ b/Admin/Install/db.json
@@ -0,0 +1,97 @@
+{
+    "hr_staff": {
+        "name": "hr_staff",
+        "fields": {
+            "hr_staff_id": {
+                "name": "hr_staff_id",
+                "type": "INT",
+                "null": false,
+                "primary": true,
+                "autoincrement": true
+            },
+            "hr_staff_account": {
+                "name": "hr_staff_account",
+                "type": "INT",
+                "null": false,
+                "foreignTable": "account",
+                "foreignKey": "account_id"
+            },
+            "hr_staff_unit": {
+                "name": "hr_staff_unit",
+                "type": "INT",
+                "null": false,
+                "foreignTable": "organization_unit",
+                "foreignKey": "organization_unit_id"
+            },
+            "hr_staff_department": {
+                "name": "hr_staff_department",
+                "type": "INT",
+                "null": false,
+                "foreignTable": "organization_department",
+                "foreignKey": "organization_department_id"
+            },
+            "hr_staff_position": {
+                "name": "hr_staff_position",
+                "type": "INT",
+                "null": false,
+                "foreignTable": "organization_position",
+                "foreignKey": "organization_position_id"
+            },
+            "hr_staff_active": {
+                "name": "hr_staff_active",
+                "type": "INT",
+                "null": false
+            }
+        },
+        "hr_staff_history": {
+            "name": "hr_staff_history",
+            "fields": {
+                "hr_staff_history_id": {
+                    "name": "hr_staff_history_id",
+                    "type": "INT",
+                    "null": false,
+                    "primary": true,
+                    "autoincrement": true
+                },
+                "hr_staff_history_staff": {
+                    "name": "hr_staff_history_staff",
+                    "type": "INT",
+                    "null": false,
+                    "foreignTable": "hr_staff",
+                    "foreignKey": "hr_staff_id"
+                },
+                "hr_staff_history_unit": {
+                    "name": "hr_staff_history_unit",
+                    "type": "INT",
+                    "null": false,
+                    "foreignTable": "organization_unit",
+                    "foreignKey": "organization_unit_id"
+                },
+                "hr_staff_history_department": {
+                    "name": "hr_staff_history_department",
+                    "type": "INT",
+                    "null": false,
+                    "foreignTable": "organization_department",
+                    "foreignKey": "organization_department_id"
+                },
+                "hr_staff_history_position": {
+                    "name": "hr_staff_history_position",
+                    "type": "INT",
+                    "null": false,
+                    "foreignTable": "organization_position",
+                    "foreignKey": "organization_position_id"
+                },
+                "hr_staff_history_start": {
+                    "name": "hr_staff_history_start",
+                    "type": "DATETIME",
+                    "null": false
+                },
+                "hr_staff_history_end": {
+                    "name": "hr_staff_history_end",
+                    "type": "DATETIME",
+                    "null": false
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Admin/Installer.php b/Admin/Installer.php
index bd66cc7..ab4835f 100644
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -14,13 +14,10 @@ declare(strict_types=1);
 
 namespace Modules\HumanResourceManagement\Admin;
 
-use phpOMS\DataStorage\Database\DatabasePool;
-use phpOMS\DataStorage\Database\DatabaseType;
-use phpOMS\Module\InfoManager;
 use phpOMS\Module\InstallerAbstract;
 
 /**
- * Human Resources install class.
+ * Installer class.
  *
  * @package    Modules\HumanResourceManagement\Admin
  * @license    OMS License 1.0
@@ -29,131 +26,4 @@ use phpOMS\Module\InstallerAbstract;
  */
 class Installer extends InstallerAbstract
 {
-
-    /**
-     * {@inheritdoc}
-     */
-    public static function install(DatabasePool $dbPool, InfoManager $info) : void
-    {
-        parent::install($dbPool, $info);
-
-        switch ($dbPool->get()->getType()) {
-            case DatabaseType::MYSQL:
-                $dbPool->get()->con->prepare(
-                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get()->prefix . 'hr_staff` (
-                            `hr_staff_id` int(11) NOT NULL AUTO_INCREMENT,
-                            `hr_staff_account` int(11) DEFAULT NULL,
-                            `hr_staff_unit` int(11) DEFAULT NULL,
-                            `hr_staff_department` int(11) DEFAULT NULL,
-                            `hr_staff_position` int(11) DEFAULT NULL,
-                            `hr_staff_active` int(1) NOT NULL,
-                            PRIMARY KEY (`hr_staff_id`),
-                            KEY `hr_staff_account` (`hr_staff_account`),
-                            KEY `hr_staff_unit` (`hr_staff_unit`),
-                            KEY `hr_staff_department` (`hr_staff_department`),
-                            KEY `hr_staff_position` (`hr_staff_position`)
-                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8;'
-                )->execute();
-
-                $dbPool->get()->con->prepare(
-                    'ALTER TABLE `' . $dbPool->get()->prefix . 'hr_staff`
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_staff_ibfk_1` FOREIGN KEY (`hr_staff_account`) REFERENCES `' . $dbPool->get()->prefix . 'account` (`account_id`),
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_staff_ibfk_2` FOREIGN KEY (`hr_staff_unit`) REFERENCES `' . $dbPool->get()->prefix . 'organization_unit` (`organization_unit_id`),
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_staff_ibfk_3` FOREIGN KEY (`hr_staff_department`) REFERENCES `' . $dbPool->get()->prefix . 'organization_department` (`organization_department_id`),
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_staff_ibfk_4` FOREIGN KEY (`hr_staff_position`) REFERENCES `' . $dbPool->get()->prefix . 'organization_position` (`organization_position_id`);'
-                )->execute();
-
-                $dbPool->get()->con->prepare(
-                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get()->prefix . 'hr_staff_history` (
-                            `hr_staff_history_id` int(11) NOT NULL AUTO_INCREMENT,
-                            `hr_staff_history_staff` int(11) DEFAULT NULL,
-                            `hr_staff_history_position` int(11) DEFAULT NULL,
-                            `hr_staff_history_department` int(11) DEFAULT NULL,
-                            `hr_staff_history_start` datetime DEFAULT NULL,
-                            `hr_staff_history_end` datetime DEFAULT NULL,
-                            PRIMARY KEY (`hr_staff_history_id`),
-                            KEY `hr_staff_history_staff` (`hr_staff_history_staff`),
-                            KEY `hr_staff_history_department` (`hr_staff_history_department`),
-                            KEY `hr_staff_history_position` (`hr_staff_history_position`)
-                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8;'
-                )->execute();
-
-                $dbPool->get()->con->prepare(
-                    'ALTER TABLE `' . $dbPool->get()->prefix . 'hr_staff_history`
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_staff_history_ibfk_1` FOREIGN KEY (`hr_staff_history_staff`) REFERENCES `' . $dbPool->get()->prefix . 'hr_staff` (`hr_staff_id`),
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_staff_history_ibfk_2` FOREIGN KEY (`hr_staff_history_department`) REFERENCES `' . $dbPool->get()->prefix . 'organization_department` (`organization_department_id`),
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_staff_history_ibfk_3` FOREIGN KEY (`hr_staff_history_position`) REFERENCES `' . $dbPool->get()->prefix . 'organization_position` (`organization_position_id`);'
-                )->execute();
-
-                $dbPool->get()->con->prepare(
-                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get()->prefix . 'hr_staff_contract` (
-                            `hr_staff_contract_id` int(11) NOT NULL AUTO_INCREMENT,
-                            `hr_staff_contract_stype` tinyint(1) DEFAULT NULL,
-                            `hr_staff_contract_salary` decimal(8,2) DEFAULT NULL,
-                            `hr_staff_contract_cformingbenefits` decimal(8,2) DEFAULT NULL,
-                            `hr_staff_contract_working_hours` int(11) DEFAULT NULL,
-                            `hr_staff_contract_vacation` tinyint(3) DEFAULT NULL,
-                            `hr_staff_contract_vtype` tinyint(3) DEFAULT NULL,
-                            `hr_staff_contract_personal_time` tinyint(3) DEFAULT NULL,
-                            `hr_staff_contract_start` datetime DEFAULT NULL,
-                            `hr_staff_contract_end` datetime DEFAULT NULL,
-                            `hr_staff_contract_employee` int(11) DEFAULT NULL,
-                            PRIMARY KEY (`hr_staff_contract_id`),
-                            KEY `hr_staff_contract_employee` (`hr_staff_contract_employee`)
-                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8;'
-                )->execute();
-
-                $dbPool->get()->con->prepare(
-                    'ALTER TABLE `' . $dbPool->get()->prefix . 'hr_staff_contract`
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_staff_contract_ibfk_1` FOREIGN KEY (`hr_staff_contract_employee`) REFERENCES `' . $dbPool->get()->prefix . 'hr_staff` (`hr_staff_id`);'
-                )->execute();
-
-                $dbPool->get()->con->prepare(
-                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get()->prefix . 'hr_planning_shift` (
-                            `HRPlanningShiftID` int(11) NOT NULL AUTO_INCREMENT,
-                            `amount` int(11) DEFAULT NULL,
-                            `position` int(11) DEFAULT NULL,
-                            `department` int(11) DEFAULT NULL,
-                            `start` datetime DEFAULT NULL,
-                            `end` datetime DEFAULT NULL,
-                            PRIMARY KEY (`HRPlanningShiftID`),
-                            KEY `department` (`department`)
-                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8;'
-                )->execute();
-
-                /*
-                $dbPool->get()->con->prepare(
-                    'ALTER TABLE `' . $dbPool->get()->prefix . 'hr_planning_shift`
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_planning_shift_ibfk_1` FOREIGN KEY (`department`) REFERENCES `' . $dbPool->get()->prefix . 'organization_department` (`organization_department_id`);'
-                )->execute();*/
-
-                $dbPool->get()->con->prepare(
-                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get()->prefix . 'hr_planning_staff` (
-                            `HRPlanningStaffID` int(11) NOT NULL AUTO_INCREMENT,
-                            `person` int(11) DEFAULT NULL,
-                            `start` datetime DEFAULT NULL,
-                            `end` datetime DEFAULT NULL,
-                            `status` tinyint(1) NOT NULL,
-                            `type` tinyint(1) NOT NULL,
-                            `repeat` tinyint(1) NOT NULL,
-                            `rep_interval` tinyint(3) NOT NULL,
-                            `rep_monday` tinyint(1) NOT NULL,
-                            `rep_tuesday` tinyint(1) NOT NULL,
-                            `rep_wednesday` tinyint(1) NOT NULL,
-                            `rep_thursday` tinyint(1) NOT NULL,
-                            `rep_friday` tinyint(1) NOT NULL,
-                            `rep_saturday` tinyint(1) NOT NULL,
-                            `rep_sunday` tinyint(1) NOT NULL,
-                            PRIMARY KEY (`HRPlanningStaffID`),
-                            KEY `person` (`person`)
-                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8;'
-                )->execute();
-
-                $dbPool->get()->con->prepare(
-                    'ALTER TABLE `' . $dbPool->get()->prefix . 'hr_planning_staff`
-                            ADD CONSTRAINT `' . $dbPool->get()->prefix . 'hr_planning_staff_ibfk_1` FOREIGN KEY (`person`) REFERENCES `' . $dbPool->get()->prefix . 'account` (`account_id`);'
-                )->execute();
-                break;
-        }
-    }
 }