新网络体系结构—Web Services研究综述

New Generation of Network Architecture-Web Services Review

Web服务作为一种新型的松耦合分布式计算范式而成为目前业界研究的热点。本文从分布式计算、Grid计算和XML等技术发展融合的角度提出web服务是分布式技术发展的第四个阶段,并将它与前三个阶段的技术特点进行了综合比较。提出了一种Web Services新架构模型:RSRPM模型,在形式化定义的基础上,对实现步骤、方法和协议进行了描述。另外,本文对目前Web服务的应用情况与主要开发平台进行了比较分析,并指出了web服务目前存在的主要技术挑战和发展趋势。

Web Services is the method of building software that allows companies with different computing systems to interact and conduct transaction. As the fourth developin stage of distributed computing,the evolution process and the definition of Web Services from the views of the distribution computing, Grid computing and XML technique points are presented and compared with the others stage in different aspects. A new Web Services architecture model: RSRPM(Resources,Services,Roles,Protocols and Methods) model has been provided and formulated definiton. The main steps to build,to apply and to realize Web services application and core protocol stacks are analyzed in RSRPM schema. Furthermore,the technique challenges and trends of the Web service are pointed out.