Transformations take a name for input and output elements

core/core_formalism.mvc

@@ -65,8 +65,11 @@ SimpleClassDiagrams CoreFormalism {
 
     Class ActionLanguage : Transformation {}
 
-    Association transformInput (Model, Transformation) {}
+    Association transformInput (Model, Transformation) {
+        name : String
+    }
     Association transformOutput (Transformation, Model) {
+        name : String
         target_lower_cardinality = 1
     }
 }