UML 2 Interaction Overview Diagram Validation

UML 2 interaction overview diagram, IOD for short, is a variant of UML activity diagrams where the nodes may be interaction diagrams. Introduced on the UML 2 version, this diagram gathers benefits related to specific and global behaviors. When the nodes are sequence diagrams, it allows a valuated control flow specification. We propose in this paper an approach to validate the IOD notation. The validation is made by model checking using the hierarchical Petri nets derived from the IOD diagrams.