Research On Secure Interoperbility Of Heterogeneous Information System Based On Web Services

The Key factor of interoperability realization is divided as communication model and information model, from the demand of distributional heterogeneous information system interoperability. The normal solution project is writer connection code for information system, so the relation between communication model and information model is compact couple, and lots of cost will be wasted at any once change. Information model is founded by different professions according to themselves special character and information standard, therefore, we need a suitable communication model to realize the intercommunication of Data, and to keep loose couple relation between them. With the development and application of Web services technologies , some issues of Web services security are increasingly prominent. Secure communications for Web services demand secure transport of SOAP messages at application layer. Through analyzing, the Web services that based on XML technology is the just available method to build up secure communication model of heterogeneous information system, which represents the trend of development. The fundamental concept of Web services is introduced in this paper at first, then analyzed all sort of Protocols about this technology. Aiming at the present condition of educational profession information system, the communication model of heterogeneous information system is designed; the feasibility of this model is conducted experimental verification and test according to the .Net platform, and demonstration this design is a high efficiency and low cost solution project, through the cost analysis of economy about the model. At last, A mech-anism for Web services secure communications based on XML security technologies is proposed in terms of Web services application modes. Through secure session mechanism, it not only provides the identity au- thentication functionality with relatively high security level, but also improves the efficiency of secure com-munications. The SOAPSec system is also designed and implemented, which ensures secure transport of SOAP messages at application layer.This mechanism has the advantages of flexibility and extensibility, and can meet various requirements of secure communications in typical Web services application scenarios.