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Towards a framework for web service compositions recovery

The Web service paradigm allows for integrating heterogeneous and autonomous applications in cross-organisational systems. The fact that an integrated service is autonomous and distributed in nature presents unique challenges to its reliability. Resilience of the integrated service execution can be achieved through autonomous failure detection and recovery. However, current technologies are unable to effectively resolve the reliability problem due to the lack of high level abstractions and functionalities for Web service integration. Our research indicates there is a need for run-time monitoring, detection and recovery to ensure the correct execution of a composite service. This paper describes the current development of a framework that provides flexible reaction strategies in a Web service composition when an unexpected event is encountered.