A Platform for Discovery and Execution of Semantic Web Services Compositions
نویسندگان
چکیده
Semantic descriptions provide more accurate information related to operations supported by Web services, enabling their dynamic discovery and execution without human intervention. Furthermore, semantic descriptions allow Web services to be automatically combined by using discovery mechanisms able to identify composed services. These compositions can also be described and published as if they were a single service, allowing service consumers to discover and invoke a composition transparently. This paper presents a platform for automatic discovery and execution of semantic Web services compositions. A composer mechanism identifies semantic Web services compositions based on the information annotated on service descriptions using SAWSDL (Semantic Annotations for WSDL). The identified service compositions are described and published as a single service. The interaction among services is described using WS-BPEL (Web Services Business Process Execution Language) and executed by a
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