Study on Service Oriented Architecture Based on Web Service

Ten years ago, Gartner Group has put forward the conception of SOA (Service Oriented Architecture). But traditional SOA was implemented with a tight couple and not universal interface. So traditional SOA doesn′t satisfy the demand of the information shared by distributed systems spanned enterprises and software reuse. It didn′t realize the on-demand system. Thus until now, SOA isn′t applied aboard. With the Web Service specifications standardized by W3C and big international IT Co.′s service sustainment, such as IBM, Microsoft, SUN…. Web Service become more and more mature and is the hottest technology in distributed application program developments. And Web service adopts a Service Oriented, open and loose couple architecture. All the specifications based on general XML (eXtensible Markup Language). More important its implementation is very simple. Hence, it brings new chance to SOA. This paper analyses the tradition application of SOA and principles of Web Service. Then it puts forward Web Servicebased SOA. Next, the paper discusses the implementation of Web Servicebased SOA and it′s communication structure and layers.