Translation Pattern of BPEL Process into Promela Code

To verify behavioral specification of compound Web services, this paper introduces to apply model checking to Web services flows described by BPEL. Model checking is a formal method to formalize the behavior of designed system as an automaton and to analyze automatically whether or not the automaton satisfies the specification. This paper introduces translation pattern to convert a BPEL process to Promela code (Process or Protocol Meta Language), which is a verification modeling language in SPIN model checker. The result of our case study using a parking navigation service shows that our translation pattern can automatically verify the specification except Exception handling pattern and Event handling pattern.