Peer-to-peer service composition management

该建议的目标是调查对等网络和多代理系统的服务组合，即分布式应用程序动态构建与第三方Web服务的管理的好处。只有具备相应的管理基础设施，才能实现这些应用程序的承诺：-监控组件的正确组成和执行; -检测违反服务级别协议的行为;以及-在出现故障时帮助动态替换服务。完成这些任务的集中式系统可能会导致一些问题，包括：创建瓶颈和单点故障，偏见的风险以及缺乏适当的仪器。我们建议调查一个分布式的基础设施，以解决上述问题。然后，节点将依赖于对等网络来发现服务并评估其声誉。这项工作将建立在我们的Web服务组合，对等网络，功能交互检测和信任获取的经验。

The goal of this proposal is to investigate the benefits of peer-to-peer networks and multi-agent systems for the management of service compositions, i.e. distributed applications built dynamically with third party Web Services. The promise of such applications can only be fullfilled if there is a corresponding management infrastructure that: - monitors the correct composition and execution of the components; - detects violations of service level agreements; and - helps with the dynamic replacement of a service in case of failure. A centralized system to accomplish such tasks could lead to problems including: the creation of a bottleneck and single point of failure, the risk of bias and the lack of proper instrumentation. We propose investigating a distributed infrastructure to address the above issues. Nodes would then rely on a peer-to-peer network for the discovery of services and the evaluation of their reputation. The work will build on our experience with Web Service composition, peer-to-peer networks, feature interaction detection and trust acquisition.