Peer-to-Peer Traced Execution of Composite Services
The connectivity generated by the Internet is opening unprecedented opportunities of automating business-to-business collaborations. As a result, organisations of all sizes are forming online alliances in order to deliver integrated value-added services. Unfortunately, due to a lack of tools and methodologies offering an adequate level of abstraction, the development of these integrated services is currently ad hoc and requires a considerable effort of low-level programming, especially when dealing with coordination, communication, and execution tracing issues. In this paper, we present a framework through which business services can be declaratively composed, and the resulting composite services can be executed in a fully traceable manner. The traces of a composite service executions are collected incrementally through peer-to-peer interactions between the involved providers. Once collected, these traces are stored as linked objects in distributed repositories, which are made available for auditing, customer feedback and quality assessment.
KeywordsService Composition Composite Service Business Process Management State Coordinator Trace Execution
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