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近几年来Web服务在各领域的应用越来越广泛,但是作为其重要组成部分的统一描述、发现和集成协议由于其局限性,无法有效地帮助用户选择高质量的服务,不能满足用户的需求。而现有的研究则主要集中在如何建立基于服务质量的Web服务发现模型上,并未考虑对服务进行管理。针对该问题,提出了一种基于自然衰减和用户反馈的信任维护机制,通过该机制可以对已注册服务执行管理操作,并为用户提供选择服务的参考,提高发现系统的有效性和可用性。
In recent years, Web service has been widely used in various fields, but as an important part of its unified description, discovery and integration protocols can not effectively help users to choose high-quality services and can not meet the needs of users because of their limitations . However, the existing researches focus on how to set up the model of Web service discovery based on QoS without considering the service management. Aiming at this problem, this paper proposes a trust maintenance mechanism based on natural decay and user feedback. Through this mechanism, it can manage the registered services and provide users with reference to select services, so as to improve the availability and availability of the discovery system.