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面向服务簇的服务体系结构及服务发现
引用本文:胡强,杜玉越.面向服务簇的服务体系结构及服务发现[J].计算机应用,2013,33(8):2163-2166.
作者姓名:胡强  杜玉越
作者单位:山东科技大学 信息科学与工程学院,山东 青岛 266590
基金项目:国家973计划项目;国家自然科学基金资助项目;山东省教育厅计划项目
摘    要:为了缩减服务查找空间,提高服务发现效率,提出服务簇的概念。将具有相似或相同服务功能的Web服务封装为一个服务簇,构建基于服务簇的服务请求/响应模式。给出了服务簇的形式化定义、面向服务簇的服务体系结构以及服务簇模式下的最优服务发现算法。仿真实验以10000个Web服务作为测试源,在服务簇数目不大于1000时,服务簇模式下的服务查找时间以及服务再查找时间均小于600ms,而当前服务响应模式下,上述时间均大于900ms。实验结果表明:基于服务簇的服务请求/响应模式可以显著提高服务发现效率,并能大幅度降低服务再查找的时间。

关 键 词:Web服务  服务簇  服务发现  面向服务体系结构  服务质量  
收稿时间:2013-02-21
修稿时间:2013-03-22

Service architecture and service discovery oriented to service clusters
HU Qiang DU Yuyue.Service architecture and service discovery oriented to service clusters[J].journal of Computer Applications,2013,33(8):2163-2166.
Authors:HU Qiang DU Yuyue
Affiliation:College of Information Science and Engineering, Shandong University of Science and Technology, Qingdao Shandong 266590, China
Abstract:In order to reduce the search space and improve the efficiency of service discovery, the concept of service cluster was put forward. Web services with the same or similar functions were encapsulated as a service cluster. The request/response schema based on service clusters was constructed. The formal definition of service cluster, the architecture and an algorithm to discover the optimal Web service in the service clusters schema were presented. The simulation experiment was conducted on 10000 Web services. The discovery time and rediscovery time under service clusters schema were less than 600ms when the number of service clusters was no more than 1000. However, the above time was more than 900ms in the current service response schema. The efficiency is greatly increased in discovering services under service clusters schema, and the rediscovery time is also greatly decreased.
Keywords:Web service                                                                                                                          service cluster                                                                                                                          service discovery                                                                                                                          Service-Oriented Architecture (SOA)                                                                                                                          Quality of Service (QoS)
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