diff -r 2b3247d02769 -r f55970e41793 server/src/app/Libraries/RdfModel/RdfModelDelta.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/server/src/app/Libraries/RdfModel/RdfModelDelta.php	Mon Oct 05 17:02:10 2015 +0200
@@ -0,0 +1,27 @@
+<?php
+namespace CorpusParole\Libraries\RdfModel;
+
+use EasyRdf\Graph;
+
+/**
+ *
+ */
+class RdfModelDelta {
+
+    public function __construct($uri) {
+        $this->deletedGraph = new Graph($uri);
+        $this->addedGraph = new Graph($uri);
+    }
+
+    private $deletedGraph;
+    private $addedGraph;
+
+    public function getDeletedGraph() {
+        return $this->deletedGraph;
+    }
+
+    public function getAddedGraph() {
+        return $this->addedGraph;
+    }
+
+}