An agent-based framework for dynamic web service selection
Proceedings of the 2008 Spring simulation multiconference
Automated verification of security pattern compositions
Information and Software Technology
Model checking adaptive multilevel service compositions
FACS'10 Proceedings of the 7th international conference on Formal Aspects of Component Software
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Web service composition is an emerging paradigm for enabling application integration within and across organizational boundaries. Model checking is a promising technique for the verification and validation of software systems. In this paper, we present a model checking framework to specifying and verifying the compositions of Web services workflow based on BPEL4WS(Business Process Execution Language for Web Services). By using annotation layers, a BPEL4WS model can be extended with constraints (properties) information. An underlying BPEL4WS model and one or more constraint annotation layers compose a complete specification of a business process imposed specific constraints. By transforming the annotated BPEL4WS model to an extended TPPN(Timed Predicate Petri-net) model, a business process can be automatically verified and analyzed. The method allows us to add conveniently constraints information to a business process model, and state whether a process satisfies given properties without actual execution based on its specification.