Supporting web services reuse by semantic service component and composition pattern  

利用语义服务构件和组合模式支持web服务重用(英文)

作　　者：楚旺[1] 钱德沛[1] 

机构地区：[1]西安交通大学计算机科学与技术系,西安710049

出　　处：《Journal of Southeast University(English Edition)》2006年第3期311-314,共4页东南大学学报（英文版）

基　　金：The National Basic Research Program of China (973Program) (No.1999032710).

摘　　要：Due to the fact that the existing web service description methods cannot address the issue of service reuse of various levels of granularity, the concept of service component is introduced, which packages together web services and choreography, and their operations and properties are presented in a consistent and uniform manner. Service components are published externally as normal web services and can thus be employed by webbased applications. In order to improve reusability and testability of service components, the concept of composition pattern is also proposed, which presents the relationships among service components. The relationships and relationship compositions have a rigorous semantic, so that composite components can be validated at the configuration stage. The composition patterns support to integrate service components of various levels of granularity. Experience indicates that the application assembly can effectively be conducted by understanding, selecting, and reusing components easily.由于目前的web服务描述方法不能有效地解决不同粒度的服务重用问题,引入“语义服务构件”的概念封装多个服务以及它们的协调规则(choreography),为不同抽象层次的服务提供统一的描述框架.为了提高服务的可重用性,提出了“组合模式”的思想描述构件之间的关系,并定义了构件关系的语义.组合模式可以有效地支持不同粒度的服务重用和设计阶段的测试.开发经验表明:由于比较容易地进行构件的理解、选择和重用,组合模式能够有效地支持应用组装.

关 键 词：semantic web semantic service component service reuse composition pattern 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]