A probabilistic verification framework of SysML activity diagrams

SysML activity diagrams are OMG/INCOSE standard used for modeling and analyzing probabilistic systems. In this paper, we propose a formal verification framework that is based on PRISM probabilistic symbolic model checker to verify the correctness of these diagrams. To this end, we present an efficient algorithm that transforms a composition of SysML activity diagrams to an equivalent probabilistic automata encoded in PRISM input language. To clarify the quality of our verification framework, we formalize both SysML activity diagrams and PRISM input language. Finally, we demonstrate the effectiveness of our approach by presenting a case study.