Self-healing software is one of the challenges for IST research. The WS-DIAMOND project aims at making a step in this direction by developing a framework for self-healing Web Services. In particular, the project aims at: - Defining an framework for self-healing service execution of conversationally complex Web Services, where monitoring, detection and diagnosis of anomalous situations, due to functional or non-functional errors, are carried on and repair/ reconfiguration is performed, thus guaranteeing reliability and availability of Web Services; - Defining a methodology and tools for service design that guarantee effective and efficient diagnosability/repairability during execution. The research builds upon results in different areas such as model-based diagnosis, semantic Web Services, cooperative information systems and Web Service composition. It goes beyond a number of current projects in the area of Service Oriented Computing, which do not consider the monitoring, diagnosing and repairing of Web Services. This paper describes the achievements in the first phase of the project.
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