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has been cited by the following article:

• TITLE: Mapping UML 2.0 Activities to Zero-Safe Nets

  AUTHORS: Sabine Boufenara, Faiza Belala, Kamel Barkaoui

  KEYWORDS: UML Activity Diagrams Formalization, Interruptible Activity Region, Zero-Safe Nets

  JOURNAL NAME: Journal of Software Engineering and Applications, Vol.3 No.5, May 24, 2010

  ABSTRACT: UML 2.0 activity diagrams (ADs) are largely used as a modeling language for flow-oriented behaviors in software and business processes. Unfortunately, their place/transition operational semantics is unable to capture and preserve semantics of the newly defined high-level activities constructs such as Interruptible Activity Region. Particularly, basic Petri nets do not preserve the non-locality semantics and reactivity concept of ADs. This is mainly due to the absence of global synchronization mechanisms in basic Petri nets. Zero-safe nets are a high-level variant of Petri nets that ensure transitions global coordination thanks to a new kind of places, called zero places. Indeed, zero-safe nets naturally address Interruptible Activity Region that needs a special semantics, forcing the control flow by external events and defining a certain priority level of executions. Therefore, zero-safe nets are adopted in this work as semantic framework for UML 2.0 activity diagrams.