UDDI与Web服务扩展元数据拓扑映射  

Topological mapping between UDDI and web service extended metadata

作　　者：姜峰[1] 范玉顺[1] 

机构地区：[1]清华大学自动化系,北京100084

出　　处：《清华大学学报（自然科学版）》2009年第7期1080-1084,共5页Journal of Tsinghua University(Science and Technology)

基　　金：国家"八六三"高技术项目(2007AA04Z150;2006AA04Z157)

摘　　要：统一描述、发现和集成(universal description,discovery and integration,UDDI)协议针对服务质量的扩展使Web服务描述与注册的元数据间存在差异,海量服务的注册不仅破坏UDDI数据的一致性,还使数据关系变得复杂难以维护。该文分析了UDDI元数据模型和Web服务描述语言(Web service description language,WSDL)的元数据拓扑结构,通过扩展WSDL Schema引入服务质量描述元素,从而建立UDDI和WSDL元数据间的一致表述,并通过拓扑矩阵的变换实现WSDL元数据的拓扑关系到UDDI数据空间的映射,不仅可以维护WSDL和UDDI间的数据关系和数据一致性,并且为Web服务的开发和注册提供更加灵活的方式,提高UDDI数据的利用率和共享度。Quality of service （QoS） requirements in the universal description, discovery and integration （UDDI） protocol lead to a mismatch between the web service description and the registration metadata. The registrations of many services damage the UDDI data consistency and create complex data relationships that are difficult to maintain. This paper analyzes the model of UDDI metadata and the topological structure of web services description language （WSDL） metadata. The WSDL schema is extended to conclude QoS description to establish consistent interpretations between WSDL and UDDI metadata models. The WSDL metadata topological relations are then transformed into the UDDI data space through a topological matrix transformation. These relations not only simplify maintenance of WSDL and UDDI data relationships and data consistency, but also provide more flexiblity for the development and registration of web services, which enhances the utilization of UDDI registed data.

关 键 词：WEB服务注册 元数据 拓扑映射 服务质量扩展 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TP391[自动化与计算机技术—控制科学与工程]