Web Services:分布式网络体系新架构

Web服务作为一种新型的分布式网络体系架构成为目前研究的热点。该文从分布式计算技术与Grid计算和XML等技术发展融合的角度分析了Web服务发展历程和概念定义。提出了一种RSRPM新的Web Services架构模型和形式化定义，并对实现时所需要采用的核心步骤、指令方法以及核心协议栈进行了分析和描述。另外，在对目前Web服务的应用情况进行分析的基础上，指出了Web服务存在的局限性、4个主要的技术问题以及未来的发展趋势。

Web Services:A New Style Architecture of Distributed Network

Web services provides a new solution by a programming Internet model to integrate distributed and heterogeneous systems into unite. The evolution process of Web services from the integrated views of the distribution computing mixed with grid computing and XML technique is presented. A new Web services architecture model: RSRPM (resources,services,roles,protocols and methods) model and formulated definition have been provided. The main steps to build, to apply and to realize Web services application and core protocol stacks are introduced. Furthermore, some characteristics of different developing tools are compared to each other, such as .Net, WSDE and Sun One. Then, four challenges and trends of the Web services in the application process are pointed out.