期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2013
卷号：52
期号：1
出版社：Journal of Theoretical and Applied
摘要：The large amount of Web services in internet brings more opportunities for the users, however, it also increases the difficulty to search and find an appropriate Web service for a service request since there are too many similar Web services. To reduce the search space and increase the flexibility of service response, a group of Web services with similar functions are mapped as a service cluster in this paper. A service request and response schema based on service cluster is proposed. The service request from a user is responded by a Web service or a service flow. The service architecture oriented on service clusters is presented and tow algorithms are designed to bind an appropriate Web service or a service flow with the optimal Qos under the service cluster schema. Simulation results show that efficiency is greatly increased in discovering services under service clusters schema, and the rediscovery time is also greatly decreased once the current working Web service is unavailable
关键词：Web service; Quality of Service (QoS); Service Cluster; Flexibility; Service flow
