MOF24 — Relations

All relations should be descended somehow from Relation, or DirectedRelation if that applies. Then all the diagrams could be traversed with the DirectedRelationship API as generic graphs. For example, the arcs on behavioral models should be descended from directed relations.

It is not clear that all connections between elements in the UML2 model are a kind of Relationship or DirectedRelationship. A better way to achieve generic traversal is to use MOF reflection to navigate metaclass containment associations. Tools would be free to merge MOF2 Reflection into UML2 compliance levels to provide this capability. If this change were to be made it could have a significant impact on existing implementations and, therefore, is outside the scope of an RTF

Disposition: Closed, no change