Research Of The Multi-Layer Application Integration Architecture Model Based On Web Services

Enterprise Application Integration (EAI) refers to the unlimited sharing data and dealing with business during any connected application which among the inner enterprise or the outer enterprises, whose purpose is combined with enterprise's operation flow, internet application, system hardware standards, realizes the seamless integration in many enterprise application system, make it seems a whole to deal with all the business information, then enables the whole business management resources'each link achieve the coordinated work, efficiency optimization, then realizes enterprise benefit enhancement.The traditional technology of EAI already slowly could not adapt the fast growth of enterprise information system, and the traditional methods are more complex and the cost is high, and does not support the modernized enterprise along with to need to the services. The development of the new EAI, its purpose is realizing sharing the data inside and outside the enterprise and service interconnection; the service, the resources combination is agility, the extension is good. Along with middleware technology maturity, and the key technologies standard unification, Web Services becomes the present most excellent technology. This article proposes the integrated model has provided the very good support to Web Services, realized a loose coupling enterprise application environment using the Web Services technology. Through for services encapsulate the enterprise interior various branch office's data to the services in the application layer, the service provider defines the description for Web Service and publish it to the service requester or the service registration center, the service requester search the service description by useing the find operation, then use the service description and the service provider binding and calling the Web Service to realize alternation with it, realizing the data effective integration in the different platform. This article mainly aims at the current EAI to integrate ability lowness, the flexibility badly, the interoperability not high, the model lacks to support the distribution environment and so on shortcomings in the practical application, based on the current rapid development of the Web Services construction, proposed an EAI system model based on the Web Services. It has the advantages of the loose coupling, the professional support, highly integration ability and so on. This article mainly discusses the EAI system construction model based on Web Services, and unifies an order form management information system's demands, proposes the EAI model and the application realization in the system, simultaneously studies the difference from the traditional integration way and the performance contrast.Firstly, the paper summarizes to the EAI research situation presently, introduces the present architecture of EAI system, analyzes their merit and the shortcoming; then, based on the Web Services distributional technology and multilayer enterprise construction, proposes an EAI model based on the Web Services, studies the technical analysis about the EAI based on the Web Services; finally, we applies this model in the project of an order form management system, according to business demand, under the integrated frame, we carries on internal application integration design and the system external interface design and so on using Web Services technology to this management system, and summarizes some directions which this model needs further to study.