一种Web服务组合的可信评估方法

摘要

As software trustworthiness has become an important aspect in software engineering research,more and more researchers have focused on Web service trustworthiness evaluation while Web service has been the main form in software resource. Current research about Web service trustworthiness has concentrated on QoS attributes evaluation of single service rather than on Web service composition trustworthiness evaluation. This paper presented a general model of atomic service trustworthiness evaluation and an approach for composite service trustworthiness evaluation based on the weight of atomic services executed in composite service and the structure of composite service. Finally,we described the experiment of the approach by using a detailed case in a real online shopping.%软件可信性日益成为软件工程研究中的热点问题,作为软件资源主要形态的Web服务的可信性也受到了越来越多的关注.目前对于Web服务可信性的研究主要集中在单一服务QoS属性的可信评价,而针对服务组合的可信性研究较少.提出了一种通用的原子服务可信评估模型,并结合原子服务在服务组合执行时的权重,给出了一种基于结构分析的服务组合可信性的评估方法.最后,结合网络购物实例描述了服务组合可信性评估方法的实验过程.