New Generation of Network Architecture-Web Services Review

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.