diff --git a/Models/Group.php b/Models/Group.php
index a9597d3..47a0a72 100644
--- a/Models/Group.php
+++ b/Models/Group.php
@@ -41,6 +41,18 @@ class Group extends \phpOMS\Account\Group
      */
     protected $createdBy = 0;
 
+    /**
+     * Constructor
+     *
+     * @since  1.0.0
+     */
+    public function __construct()
+    {
+        $this->createdAt = new \DateTime();
+
+        parent::__construct();
+    }
+
     /**
      * Get created at.
      *
diff --git a/Models/Module.php b/Models/Module.php
new file mode 100644
index 0000000..8e6bb8c
--- /dev/null
+++ b/Models/Module.php
@@ -0,0 +1,222 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 7.1
+ *
+ * @category   TBD
+ * @package    TBD
+ * @copyright  Dennis Eichhorn
+ * @license    OMS License 1.0
+ * @version    1.0.0
+ * @link       http://orange-management.com
+ */
+declare(strict_types=1);
+namespace Modules\Admin\Models;
+
+/**
+ * Account group class.
+ *
+ * @category   Framework
+ * @package    phpOMS\Account
+ * @license    OMS License 1.0
+ * @link       http://orange-management.com
+ * @since      1.0.0
+ */
+class Module
+{
+
+    /**
+     * Account id.
+     *
+     * @var int
+     * @since 1.0.0
+     */
+    protected $id = 0;
+
+    /**
+     * Account name.
+     *
+     * @var string
+     * @since 1.0.0
+     */
+    protected $name = '';
+
+    /**
+     * Account name.
+     *
+     * @var string
+     * @since 1.0.0
+     */
+    protected $description = '';
+
+    /**
+     * Group status.
+     *
+     * @var int
+     * @since 1.0.0
+     */
+    protected $status = GroupStatus::INACTIVE;
+
+    /**
+     * Created at.
+     *
+     * @var \DateTime
+     * @since 1.0.0
+     */
+    protected $createdAt = null;
+
+    /**
+     * Constructor.
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function __construct()
+    {
+        $this->createdAt = new \DateTime('now');
+    }
+
+    /**
+     * Get group id.
+     *
+     * @return int
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function getId() : int
+    {
+        return $this->id;
+    }
+
+    /**
+     * Get created at.
+     *
+     * @return \DateTime
+     *
+     * @since  1.0.0
+     */
+    public function getCreatedAt() : \DateTime
+    {
+        return $this->createdAt ?? new \DateTime('NOW');
+    }
+
+    /**
+     * Get group name.
+     *
+     * @return string
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function getName() : string
+    {
+        return $this->name;
+    }
+
+    /**
+     * Set group name.
+     *
+     * @param string $name Group name
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function setName(string $name) /* : void */
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * Get group description.
+     *
+     * @return string
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function getDescription() : string
+    {
+        return $this->description;
+    }
+
+    /**
+     * Set group description.
+     *
+     * @param string $description Group description
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function setDescription(string $description) /* : void */
+    {
+        $this->description = $description;
+    }
+
+    /**
+     * Get group status.
+     *
+     * @return int Group status
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function getStatus() : int
+    {
+        return $this->status;
+    }
+
+    /**
+     * Set group status.
+     *
+     * @param int $status Group status
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function setStatus(int $status) /* : void */
+    {
+        // todo: check valid
+        $this->status = $status;
+    }
+
+    /**
+     * Get string representation.
+     *
+     * @return string
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function __toString()
+    {
+        return json_encode($this->toArray());
+    }
+
+    /**
+     * Json serialize.
+     *
+     * @return string
+     *
+     * @since  1.0.0
+     * @author Dennis Eichhorn <d.eichhorn@oms.com>
+     */
+    public function jsonSerialize()
+    {
+        return $this->toArray();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function toArray() : array
+    {
+        return [
+            'id'          => $this->id,
+            'name'        => $this->name,
+            'description' => $this->description,
+            'createdAt'   => $this->createdAt->format('Y-m-d H:i:s'),
+        ];
+    }
+}
diff --git a/Models/ModuleMapper.php b/Models/ModuleMapper.php
new file mode 100644
index 0000000..4b10e26
--- /dev/null
+++ b/Models/ModuleMapper.php
@@ -0,0 +1,76 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 7.1
+ *
+ * @category   TBD
+ * @package    TBD
+ * @copyright  Dennis Eichhorn
+ * @license    OMS License 1.0
+ * @version    1.0.0
+ * @link       http://orange-management.com
+ */
+declare(strict_types=1);
+namespace Modules\Admin\Models;
+
+use phpOMS\DataStorage\Database\DataMapperAbstract;
+use phpOMS\DataStorage\Database\RelationType;
+
+class ModuleMapper extends DataMapperAbstract
+{
+
+    /**
+     * Columns.
+     *
+     * @var array
+     * @since 1.0.0
+     */
+    protected static $columns = [
+        'module_id'      => ['name' => 'module_id', 'type' => 'int', 'internal' => 'id'],
+        'module_name'    => ['name' => 'module_name', 'type' => 'string', 'internal' => 'name'],
+        'module_status'    => ['name' => 'module_status', 'type' => 'int', 'internal' => 'status'],
+        'module_desc'    => ['name' => 'module_desc', 'type' => 'string', 'internal' => 'description'],
+        'module_created' => ['name' => 'module_created', 'type' => 'DateTime', 'internal' => 'createdAt'],
+    ];
+
+    /**
+     * Primary table.
+     *
+     * @var string
+     * @since 1.0.0
+     */
+    protected static $table = 'group';
+
+    /**
+     * Primary field name.
+     *
+     * @var string
+     * @since 1.0.0
+     */
+    protected static $primaryField = 'group_id';
+
+    /**
+     * Created at column
+     *
+     * @var string
+     * @since 1.0.0
+     */
+    protected static $createdAt = 'group_created';
+
+    /**
+     * Get object.
+     *
+     * @param mixed $primaryKey Key
+     * @param int   $relations  Load relations
+     * @param mixed $fill       Object to fill
+     *
+     * @return Group
+     *
+     * @since  1.0.0
+     */
+    public static function get($primaryKey, int $relations = RelationType::ALL, $fill = null)
+    {
+        return parent::get($primaryKey, $relations, $fill);
+    }
+}