Goal description language for semantic Web service automatic composition

Current Web service composition requires manual process modeling, which is hard to adapt to users´ various requirements and becomes more and more difficult with the explosion of Web service resources. It proposes goal-driven Web service automatic composition protocol stack to achieve automatic process modeling. Based on ontology description language OWL (Web ontology language), it comes up with a goal description language, which lies on the top of stack and tries to catch users´ requirements or preferences on requesting services. It describes the goals needed to be achieved, relationships within goals and constrains when achieving the goals. Finally, it also provides a way to detect the inconsistency in goal description. It takes an important step towards goal-driven Web service automatic composition. The work in this paper aims at building a bridge between users´ requirement and the implementation.