Reachability analysis of Web service interfaces
Xutao Du, Chunxiao Xing, Lizhu Zhou · 2008
We use WCFA (Web Service Interface Control Flow Automata) to model web service interfaces. Global behaviors of web service compositions are captured by abstract reachability graph(ARG). A polynomial time algorithm for the construction of ARG is presented. The algorithm uses a reachability analysis to verify both safety and call stack inspection properties. Both kinds of properties are expressed by assertions at control points of ARG. Each control point is equipped with a state formula and a call stack. Verification is done by a SAT solver which checks whether the assertions are logical consequences of the state formulas(or the call stacks).