Web服务组合时间限制一致性研究

Research of Timing Constraints Consistency on Web Service Composition

随着W eb服务技术的发展,使得利用W eb服务组合来满足应用的需求成为可能。通过扩展W eb服务的OWL-S描述模型———加入W eb服务可用时间段描述信息,使检测组合服务时间限制冲突成为可能,并给出了W eb服务组合时间限制一致性检查算法,能有效地去除了存在时间限制冲突的服务组合方案,减少了因执行不合理的服务组合方案所造成的W eb服务资源的浪费。

Along with the development of Web Service technology, it＇s possible to use composition of Web Service to meet the needs of the application. In this paper, we extend OWL-S which is the description ontology specification of Web Service, add the available time phrase of the Web Service into the ontology. Then we propose an algorithm that helps to verify time constraints conflict about the plan of Web Service composition. This algorithm can verify the rationality of a service composition plan and can help to avoid the waste of Web Service resources.