A proposal for extending UML-B to support a conceptual model
Innovations in Systems and Software Engineering
A practical event-b refinement method based on a UML-Driven development process
ABZ'12 Proceedings of the Third international conference on Abstract State Machines, Alloy, B, VDM, and Z
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This paper presents a new event-B based approach to reasoning about workflow applications. We show how an event-B model can be structured from UML Activity diagrams (UML AD) and then used to give a formal semantic to UML AD which supports proofs of their correctness. More precisely, we give rules for the translation of UML AD into event-B language. In particular, we propose a solution that uses the refinement in Event B to encode the hierarchical decomposition of activities in UML AD. The event-B method allows the definition of invariant describing required properties (deadlock-inexistence, liveness, fairness) and provides an automatic proof. We discuss the contributions and by an example of a workflow application, we illustrate the proposed approach.