diff --git a/core/BackgroundTask.php b/sources/Core/DataModel/BackgroundTask.php
similarity index 100%
rename from core/BackgroundTask.php
rename to sources/Core/DataModel/BackgroundTask.php
diff --git a/core/DBProperty.php b/sources/Core/DataModel/DBProperty.php
similarity index 100%
rename from core/DBProperty.php
rename to sources/Core/DataModel/DBProperty.php
diff --git a/core/TemporaryObjectDescriptor.php b/sources/Core/DataModel/TemporaryObjectDescriptor.php
similarity index 100%
rename from core/TemporaryObjectDescriptor.php
rename to sources/Core/DataModel/TemporaryObjectDescriptor.php