diff --git a/application/src/Entity/Source/Collection/Queue/QueueSourceInterface.php b/application/src/Entity/Source/Collection/Queue/QueueSourceInterface.php
index 8dc11b7..fe9a1f5 100644
--- a/application/src/Entity/Source/Collection/Queue/QueueSourceInterface.php
+++ b/application/src/Entity/Source/Collection/Queue/QueueSourceInterface.php
@@ -2,7 +2,6 @@
 
 namespace App\Entity\Source\Collection\Queue;
 
-use App\Entity\Attribut\MembersAttributInterface;
 use App\Entity\Source\Collection\CollectionSourceInterface;
 use App\Entity\Source\SourceInterface;
 
@@ -11,7 +10,7 @@ use App\Entity\Source\SourceInterface;
  *
  * @author kevinfrantz
  */
-interface QueueSourceInterface extends CollectionSourceInterface, MembersAttributInterface
+interface QueueSourceInterface extends CollectionSourceInterface
 {
     public function getPointerPosition(): int;
 
diff --git a/application/src/Entity/Source/Collection/TreeCollectionSource.php b/application/src/Entity/Source/Collection/TreeCollectionSource.php
index 96d455f..4006ac0 100644
--- a/application/src/Entity/Source/Collection/TreeCollectionSource.php
+++ b/application/src/Entity/Source/Collection/TreeCollectionSource.php
@@ -5,6 +5,7 @@ namespace App\Entity\Source\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use App\Entity\Attribut\MembersAttribut;
 use App\Entity\Method\CollectionDimensionHelperMethod;
+use App\Entity\Attribut\CollectionAttribut;
 
 /**
  * @author kevinfrantz
@@ -15,6 +16,6 @@ use App\Entity\Method\CollectionDimensionHelperMethod;
  */
 class TreeCollectionSource extends AbstractCollectionSource implements TreeCollectionSourceInterface
 {
-    use MembersAttribut;
+    use CollectionAttribut;
     use CollectionDimensionHelperMethod;
 }
diff --git a/application/src/Entity/Source/Collection/TreeCollectionSourceInterface.php b/application/src/Entity/Source/Collection/TreeCollectionSourceInterface.php
index ddc737a..3a621ff 100644
--- a/application/src/Entity/Source/Collection/TreeCollectionSourceInterface.php
+++ b/application/src/Entity/Source/Collection/TreeCollectionSourceInterface.php
@@ -2,12 +2,11 @@
 
 namespace App\Entity\Source\Collection;
 
-use App\Entity\Attribut\MembersAttributInterface;
 use App\Helper\DimensionHelperInterface;
 
 /**
  * @author kevinfrantz
  */
-interface TreeCollectionSourceInterface extends MembersAttributInterface, CollectionSourceInterface, DimensionHelperInterface
+interface TreeCollectionSourceInterface extends CollectionSourceInterface, DimensionHelperInterface
 {
 }
diff --git a/application/tests/Unit/Entity/Source/Collection/TreeCollectionSourceTest.php b/application/tests/Unit/Entity/Source/Collection/TreeCollectionSourceTest.php
index 44829c7..ecdc4d3 100644
--- a/application/tests/Unit/Entity/Source/Collection/TreeCollectionSourceTest.php
+++ b/application/tests/Unit/Entity/Source/Collection/TreeCollectionSourceTest.php
@@ -27,19 +27,19 @@ class TreeCollectionSourceTest extends TestCase
 
     public function testConstructor(): void
     {
-        $this->assertInstanceOf(Collection::class, $this->tree->getMembers());
+        $this->assertInstanceOf(Collection::class, $this->tree->getCollection());
         $this->assertInstanceOf(TreeCollectionSourceInterface::class, $this->tree);
         $this->assertInstanceOf(DimensionHelperInterface::class, $this->tree);
     }
 
-    public function testMembers()
+    public function testAccessors()
     {
         $member = new class() extends AbstractSource {
         };
-        $this->tree->setMembers(new ArrayCollection([
+        $this->tree->setCollection(new ArrayCollection([
             $member,
         ]));
-        $this->assertEquals($member, $this->tree->getMembers()
+        $this->assertEquals($member, $this->tree->getCollection()
             ->get(0));
     }
 }