| Information island has hindered the process of enterprise's information construction seriously, but traditional Enterprise Application Integration(EAI) methods usually integrate applications from peer to peer which has many deficiencies, such as poor ability of integration, poor extensibility, poor interoperability and high cost in integration. Nevertheless, Web Services has the predominant features of interoperability, encapsulation, low cost, loose coupling structure, normal protocol and high integration, so currently integration schema of EAI based on Web Services has becoming the leading EAI field.According to their research projects, many research institutions bring forward some representative EAI models based on Web services. This paper puts forward an EAI Model Framework(WS-IMF) based on Web Services after it analyses these models. WS-IMF includes many indispensable aspects such as transaction, security, composition, finding methods of Web Services and method how to convert legacy system into Web Services.The paper analyses and researches emphatically the question on the interoperability of Web Services and the question on how to convert legacy system into Web Services. It points out several questions of interoperability between Web Services of different platform and gives corresponding solutions. The paper analyses emphatically how to convert legacy systems based on CORBA into Web Services, then gives methods, steps of the conversion process. At last, we apply WS-IMF to design a model of experiment system, and use the solution on the interoperability of Web Services to solve actual difficulty between different platform. |
