Web Services Orchestration's Monitor as a Web Service

The Web services orchestration is a useful and complicated approach to integrate heterogeneous systems. To verify the conformance of the orchestrated Web service against the intended behavior, we need to analyse the produced system. To this end, in this paper, we define a security framework namely MoWS (Monitoring as a Web service) for monitoring orchestrated web services by inlining, statically, monitor's web service calls, at some critical points of the program, that checks whether the program adheres to some constraints dictated by a security policy. The rewritten program behaves like the original one except that it is aborted when an action is about to violate a security policy. The described approach is supported by a Java plug-in for eclipse.