支持约束声明的服务描述技术  

Service description & matching supporting constraint specification

作　　者：梁策[1] 肖田元[1] 张林鍹[1] 吴松[1] 

机构地区：[1]清华大学自动化系国家CIMS工程研究中心,北京100084

出　　处：《计算机集成制造系统》2007年第6期1218-1223,共6页Computer Integrated Manufacturing Systems

基　　金：国家863/CIMS主题资助项目(2004AA414020)~~

摘　　要：现有的研究仅关注描述服务的属性,而未描述服务的行为属性,如属性的取值范围以及属性取值之间的关系。为此,将约束声明引入到服务描述中,将属性的取值范围及其间的关联关系看作服务的约束条件,定义了约束的表达形式和分类,从而有效地描述Web服务的功能和行为特性。在此基础上给出基于约束的匹配算法来度量服务与请求之间的匹配程度。讨论了该模型的体系结构和实现机制,并在实际项目中得到了应用。Current studies focus on descriptive service attribute but ignore service operation attribute, such as domain of attributes value and relationship of attributes value. To deal with this problem, constraint specification was introduced in service description. Taking attribute value and their associations as constraint conditions, formal description and classification of constraints were defined so as to depict function and activity characteristics of Web services. A matching algorithm was proposed to measure mapping degree between service and demand. The architecture and implementation scheme of the algorithm were also discussed. And it was successfully put into practice.

关 键 词：分布式服务 服务描述 服务匹配 WEB服务 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]