摘要
Web服务的一个优点就是可以通过基本服务组合形成更为复杂的服务。为了确保Web服务组合的可靠性,可以利用软件容错技术来提高服务组合的可靠性。针对BPEL流程形式描述的组合服务,本文提出了一种利用软件容错模式增强组合服务可靠性的方法,并利用随机回报网模型度量组合服务的可靠性。
One of the most promising advantages of the Web service technology is the possibility of creating value-added services by combining the existing ones. In order to increase the reliability of service composition, software fault tolerance can be used. Aiming at the composite Web services described by the BPEL process, this paper proposes an approach to increasing the reliability of Web service composition by software fault tolerance, and calculate the reliability measure using a stochastic reward net model.
出处
《计算机工程与科学》
CSCD
2008年第3期28-31,共4页
Computer Engineering & Science
关键词
WEB服务组合
可靠性
软件容错
Web service composition
reliability
software fault tolerance
