diff --git a/Models/Investment.php b/Models/Investment.php
index 4a54f09..d0a585a 100644
--- a/Models/Investment.php
+++ b/Models/Investment.php
@@ -1,9 +1,30 @@
 <?php
+/**
+ * Karaka
+ *
+ * PHP Version 8.1
+ *
+ * @package   Modules\InvestmentManagement\Models
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
 declare(strict_types=1);
 
+namespace Modules\InvestmentManagement\Models;
+
 use Modules\Admin\Models\Account;
 use phpOMS\Business\Finance\DepreciationType;
 
+/**
+ * Investment model.
+ *
+ * @package Modules\InvestmentManagement\Models
+ * @license OMS License 2.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
 class Investment
 {
     public int $id = 0;
diff --git a/Models/InvestmentObject.php b/Models/InvestmentObject.php
index b5ff9a9..bc0ba97 100644
--- a/Models/InvestmentObject.php
+++ b/Models/InvestmentObject.php
@@ -1,6 +1,27 @@
 <?php
+/**
+ * Karaka
+ *
+ * PHP Version 8.1
+ *
+ * @package   Modules\InvestmentManagement\Models
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
 declare(strict_types=1);
 
+namespace Modules\InvestmentManagement\Models;
+
+/**
+ * Investment object.
+ *
+ * @package Modules\InvestmentManagement\Models
+ * @license OMS License 2.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
 class InvestmentObject
 {
     public int $id = 0;
diff --git a/Models/Money.php b/Models/Money.php
index 7db34f4..0587146 100644
--- a/Models/Money.php
+++ b/Models/Money.php
@@ -1,9 +1,30 @@
 <?php
+/**
+ * Karaka
+ *
+ * PHP Version 8.1
+ *
+ * @package   Modules\InvestmentManagement\Models
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
 declare(strict_types=1);
 
+namespace Modules\InvestmentManagement\Models;
+
 use phpOMS\Business\Finance\DepreciationType;
 use phpOMS\Stdlib\Base\FloatInt;
 
+/**
+ * Costs/Earnings.
+ *
+ * @package Modules\InvestmentManagement\Models
+ * @license OMS License 2.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
 class Money
 {
     public int $id = 0;
diff --git a/Models/MoneyType.php b/Models/MoneyType.php
index 04215f2..733d02d 100644
--- a/Models/MoneyType.php
+++ b/Models/MoneyType.php
@@ -1,8 +1,29 @@
 <?php
+/**
+ * Karaka
+ *
+ * PHP Version 8.1
+ *
+ * @package   Modules\InvestmentManagement\Models
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
 declare(strict_types=1);
 
+namespace Modules\InvestmentManagement\Models;
+
 use phpOMS\Localization\BaseStringL11n;
 
+/**
+ * Money type (one off cost, recurring, earnings).
+ *
+ * @package Modules\InvestmentManagement\Models
+ * @license OMS License 2.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
 class MoneyType
 {
     public int $id = 0;