diff --git a/Models/Arrival.php b/Models/Arrival.php
index d74e0ce..0f3a5e6 100644
--- a/Models/Arrival.php
+++ b/Models/Arrival.php
@@ -14,8 +14,6 @@
 declare(strict_types = 1);
 namespace Modules\Warehousing\Models;
 
-use phpOMS\Pattern\Multition;
-
 /**
  * Warehouse class.
  *
@@ -25,7 +23,7 @@ use phpOMS\Pattern\Multition;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-class Arrival implements Multition
+class Arrival
 {
 
     /**
diff --git a/Models/Article.php b/Models/Article.php
index 8e2bdfd..a8e475c 100644
--- a/Models/Article.php
+++ b/Models/Article.php
@@ -13,8 +13,6 @@
  */ /* TODO: maybe make this a framework object? and let warehousing, sales, purchase extend this */
 namespace Modules\Warehousing\Models;
 
-use phpOMS\Pattern\Multition;
-
 /**
  * Article class.
  *
@@ -24,7 +22,7 @@ use phpOMS\Pattern\Multition;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-class Article implements Multition
+class Article 
 {
 
     /**
diff --git a/Models/Shipping.php b/Models/Shipping.php
index 8831a23..90876fc 100644
--- a/Models/Shipping.php
+++ b/Models/Shipping.php
@@ -14,8 +14,6 @@
 declare(strict_types = 1);
 namespace Modules\Warehousing\Models;
 
-use phpOMS\Pattern\Multition;
-
 /**
  * Warehouse class.
  *
@@ -25,7 +23,7 @@ use phpOMS\Pattern\Multition;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-class Shipping implements Multition
+class Shipping
 {
 
     /**
diff --git a/Models/Warehouse.php b/Models/Warehouse.php
index 8e80a3f..69dddec 100644
--- a/Models/Warehouse.php
+++ b/Models/Warehouse.php
@@ -14,8 +14,6 @@
 declare(strict_types = 1);
 namespace Modules\Warehousing\Models;
 
-use phpOMS\Pattern\Multition;
-
 /**
  * Warehouse class.
  *
@@ -25,7 +23,7 @@ use phpOMS\Pattern\Multition;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-class Warehouse implements Multition
+class Warehouse
 {
 
     /**