Semantical analysis and modeling for OWL-S based on CSP

In order to implement automatic verification of OWL-S process model this paper present a semantical model for OWL-S process model based on Communicating Sequential Process CSP.The formal semantical model of CSP was established and could be used to define the formal semantics of OWL-S processes.Finally to show a complete process of how to define the formal semantics of OWL-S using CSP model a flight-booking example was given.Due to the well defined mathmatical foundation it is easy to develop a kind of tool verifying OWL-S processes automatically which increases the safety of the systems.