Provisioning resilient, adaptive web services-based workflow: A semantic modeling approach

Web Services are emerging technologies that en-able application-to-application communication and reuse of autonomous services over the Web. Recent ef-forts, OWL-S, model the semantics of Web Services that includes the capabilities of the service, the service in-teraction protocol, and the actual messages for service exchanges. However, there is a need to automate discov-ery, selection and execution of OWL-S services. Further, a framework that meets the quality of service (QoS) require-ments for ad hoc Internet based services is rarely provided. In this paper, we have proposed a rule-based frame-work, called SemWebQ, which manages workflows com-posed of Semantic Web Services. SemWebQ is capable of conducting QoS-based adaptive selection as well as dy-namic binding and execution of Web Services according to the semantics of workflow, thereby rendering a re-silient and adaptive Web based service flow. A series of experiments performed on the SemWebQ with real Web Ser-vices have confirmed the effectiveness of proposed frame-work with respect to adaptive selection and execution of the Web Services in Web based workflows