Abstract

Business processes modeling and verification are become essential to master and guarantee organization evolution. UML Activity diagrams have been used for this purpose, although they were not designed for that at the beginning. These diagrams lack for formal semantics which prohibits their verification. YAWL is a language developed for modeling workflows. It has a formal semantics based on Petri nets, and it is supported by open source toolsets. Transforming UML activity diagrams to YAWL is very beneficial. It allows profiting from the intuitiveness and widespread use of UML activity diagrams for modeling business processes and workflows, on one hand, and enabling their verification by using YAWL tools on the other hand.

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