Research On The Application Of Web Services In Enterprise Management Information System

With the popularization of Internet technology and the increasing demand of enterprise information construction, enterprises become more and more eager to realize the incompact coupling integration and interoperation among heterogeneous systems of multi-platform and multi-language under the background of Internet, which puts a new challenge to traditional solution of Enterprise Management Information System (EMIS).Service-Oriented Architecture (SOA) is a new generation of architecture ideology. SOA has solved the problems of applications for flexibility and interconnectivity wonderfully because of its features of loose coupling, independent of platform etc. SOA will be applied widely as an efficient solution to the architecture of EMIS.Web Services as a new technology puts forward a Service-oriented distributed compute model, its main object is to build a common technology layer, above which different applications can implement the interconnectivity and integration with each other.The thesis mainly researches the application of Web Services in EMIS. Firstly, it studies the some main problems in the traditional EMIS, points out the restriction of the existing enterprise informational system architecture. In the meantime, it discusses the advantage of design and integration of EMIS based on Web Services.Secondly, the thesis introduces the basic theory and model of SOA in detail, lucubrates technology of Web Services, mainly including the theory, architecture, primary protocols and criterions. On the basis of which, it designs the solution on design and integration of EMIS based on Web Services, and analyzes the model functions and the service-oriented solution of this system in detail.Finally, the thesis researches and realizes the key technologies of design and integration of EMIS based on Web Services, including the implementation of basic Web Services, transfer model, enterprise application integration based on business process, and solution of unified authentication. This solution is applied to GYERP.