diff --git a/application/src/Entity/AbstractSource.php b/application/src/Entity/AbstractSource.php
index 67b6a42..c417aba 100644
--- a/application/src/Entity/AbstractSource.php
+++ b/application/src/Entity/AbstractSource.php
@@ -1,18 +1,17 @@
 <?php
 namespace App\Entity;
 
+use App\Entity\attribut\IdAttribut;
+use App\Entity\attribut\NodeAttribut;
+
 /**
  *
  * @author kevinfrantz
  *        
  */
-class AbstractSource implements SourceInterface
+abstract class AbstractSource implements SourceInterface
 {  
-    /**
-     * 
-     * @var Node
-     */
-    protected $node;
+    use IdAttribut,NodeAttribut;
     
     /**
      * 
@@ -20,22 +19,4 @@ class AbstractSource implements SourceInterface
      */
     protected $configuration;
     
-    /**
-     *
-     * @var int
-     */
-    protected $id;
-    
-    public function setId(int $id): void
-    {}
-    
-    public function setNode(NodeInterface $node): void
-    {}
-    
-    public function getId(): int
-    {}
-    
-    public function getNode(): NodeInterface
-    {}
-    
 }
\ No newline at end of file
diff --git a/application/src/Entity/Configuration.php b/application/src/Entity/Configuration.php
index 4c23dec..20c89ee 100644
--- a/application/src/Entity/Configuration.php
+++ b/application/src/Entity/Configuration.php
@@ -6,7 +6,7 @@ namespace App\Entity;
  * @author kevinfrantz
  *        
  */
-class Configuration extends AbstractSource implements ConfigurationInterface
+class Configuration implements ConfigurationInterface
 {
     /**
      * 
@@ -25,6 +25,7 @@ class Configuration extends AbstractSource implements ConfigurationInterface
      * @var PropertyInterface
      */
     protected $administrate;
+    
     public function setAdministrate(Property $administrate): void
     {}
 
diff --git a/application/src/Entity/NodeInterface.php b/application/src/Entity/NodeInterface.php
index ec5e9c9..ba4b760 100644
--- a/application/src/Entity/NodeInterface.php
+++ b/application/src/Entity/NodeInterface.php
@@ -2,13 +2,14 @@
 namespace App\Entity;
 
 use Doctrine\Common\Collections\ArrayCollection;
+use Entity\attribut\SourceAttributInterface;
 
 /**
  *
  * @author kevinfrantz
  *        
  */
-interface NodeInterface
+interface NodeInterface extends SourceAttributInterface
 {
     public function getId():int;
     
@@ -19,9 +20,5 @@ interface NodeInterface
     public function setChilds(ArrayCollection $childs):void;
     
     public function getChilds():ArrayCollection;
-    
-    public function getSource():SourceInterface;
-    
-    public function setSource(SourceInterface $source):void;
 }
 
diff --git a/application/src/Entity/SourceInterface.php b/application/src/Entity/SourceInterface.php
index 3cce441..2b5d46d 100644
--- a/application/src/Entity/SourceInterface.php
+++ b/application/src/Entity/SourceInterface.php
@@ -1,19 +1,15 @@
 <?php
 namespace App\Entity;
 
+use App\Entity\attribut\NodeAttributInterface;
+use App\Entity\attribut\IdAttributInterface;
+
 /**
  *
  * @author kevinfrantz
  *        
  */
-interface SourceInterface
+interface SourceInterface extends IdAttributInterface, NodeAttributInterface
 {
-    public function setId(int $id):void;
-    
-    public function getId():int;
-    
-    public function setNode(NodeInterface $node):void;
-    
-    public function getNode():NodeInterface;
 }
 
diff --git a/application/src/Entity/User.php b/application/src/Entity/User.php
index ec4f482..d9e007c 100644
--- a/application/src/Entity/User.php
+++ b/application/src/Entity/User.php
@@ -9,15 +9,8 @@ use Symfony\Component\Security\Core\User\UserInterface;
  * @ORM\Table(name="source_user")
  * @ORM\Entity(repositoryClass="App\Repository\UserRepository")
  */
-class User implements UserInterface, \Serializable
+class User extends AbstractSource implements UserInterface, \Serializable
 {
-    /**
-     * @ORM\Column(type="integer")
-     * @ORM\Id
-     * @ORM\GeneratedValue(strategy="AUTO")
-     */
-    private $id;
-
     /**
      * @ORM\Column(type="string", length=25, unique=true)
      */
diff --git a/application/src/Entity/UserInterface.php b/application/src/Entity/UserInterface.php
deleted file mode 100644
index 51cbc35..0000000
--- a/application/src/Entity/UserInterface.php
+++ /dev/null
@@ -1,13 +0,0 @@
-<?php
-namespace App\Entity;
-
-/**
- *
- * @author kevinfrantz
- *        
- */
-interface UserInterface
-{
-    
-}
-
diff --git a/application/src/Entity/attribut/IdAttribut.php b/application/src/Entity/attribut/IdAttribut.php
new file mode 100644
index 0000000..c4af5ca
--- /dev/null
+++ b/application/src/Entity/attribut/IdAttribut.php
@@ -0,0 +1,27 @@
+<?php
+namespace App\Entity\attribut;
+
+/**
+ *
+ * @author kevinfrantz
+ *        
+ */
+trait IdAttribut {
+    /**
+     * @ORM\Id
+     * @ORM\GeneratedValue
+     * @ORM\Column(type="integer")(strategy="AUTO")
+     */
+    protected $id;
+    
+    public function setId(int $id): void
+    {
+        $this->id = $id;
+    }
+    
+    public function getId(): int
+    {
+        return $this->id;
+    }
+}
+
diff --git a/application/src/Entity/attribut/IdAttributInterface.php b/application/src/Entity/attribut/IdAttributInterface.php
new file mode 100644
index 0000000..93beeb1
--- /dev/null
+++ b/application/src/Entity/attribut/IdAttributInterface.php
@@ -0,0 +1,15 @@
+<?php
+namespace App\Entity\attribut;
+
+/**
+ *
+ * @author kevinfrantz
+ *        
+ */
+interface IdAttributInterface
+{
+    public function setId(int $id): void;
+    
+    public function getId(): int;
+}
+
diff --git a/application/src/Entity/attribut/NodeAttribut.php b/application/src/Entity/attribut/NodeAttribut.php
new file mode 100644
index 0000000..f59c507
--- /dev/null
+++ b/application/src/Entity/attribut/NodeAttribut.php
@@ -0,0 +1,28 @@
+<?php
+namespace App\Entity\attribut;
+
+use App\Entity\NodeInterface;
+
+/**
+ *
+ * @author kevinfrantz
+ *        
+ */
+trait NodeAttribut{
+    /**
+     * @var NodeInterface
+     */
+    protected $node;
+    
+    public function setNode(NodeInterface $node): void
+    {
+        $this->node = $node;
+    }
+    
+    public function getNode(): NodeInterface
+    {
+        return $this->node;
+    }
+    
+}
+
diff --git a/application/src/Entity/attribut/NodeAttributInterface.php b/application/src/Entity/attribut/NodeAttributInterface.php
new file mode 100644
index 0000000..cfa1731
--- /dev/null
+++ b/application/src/Entity/attribut/NodeAttributInterface.php
@@ -0,0 +1,17 @@
+<?php
+namespace App\Entity\attribut;
+
+use App\Entity\NodeInterface;
+
+/**
+ *
+ * @author kevinfrantz
+ *        
+ */
+interface NodeAttributInterface
+{
+    public function setNode(NodeInterface $node):void;
+    
+    public function getNode():NodeInterface;
+}
+
diff --git a/application/src/Entity/attribut/SourceAttribut.php b/application/src/Entity/attribut/SourceAttribut.php
new file mode 100644
index 0000000..2881f99
--- /dev/null
+++ b/application/src/Entity/attribut/SourceAttribut.php
@@ -0,0 +1,25 @@
+<?php
+namespace App\Entity\attribut;
+
+use App\Entity\SourceInterface;
+
+/**
+ *
+ * @author kevinfrantz
+ *        
+ */
+trait SourceAttribut {
+    /**
+     * @var SourceInterface
+     */
+    protected $source;
+    
+    public function getSource():SourceInterface{
+        return $this->source;
+    }
+    
+    public function setSource(SourceInterface $source):void{
+        $this->source = $source;
+    }
+}
+
diff --git a/application/src/Entity/attribut/SourceAttributInterface.php b/application/src/Entity/attribut/SourceAttributInterface.php
new file mode 100644
index 0000000..25a6eca
--- /dev/null
+++ b/application/src/Entity/attribut/SourceAttributInterface.php
@@ -0,0 +1,17 @@
+<?php
+namespace App\Entity\attribut;
+
+use App\Entity\SourceInterface;
+
+/**
+ *
+ * @author kevinfrantz
+ *        
+ */
+interface SourceAttributInterface
+{
+    public function getSource():SourceInterface;
+    
+    public function setSource(SourceInterface $source):void;
+}
+