Research On Enterprise Application Integration Technology

Due to lack of overall planning in the information process, a lot of information silos arise inside enterpieses, information can not be effectively shared, and business processes can not be achieved even more collaboration and automate. As a result, Enterprise Application Integration(EAI) comes into being. EAI is used to achieve the free sharing of data and business throughout the enterprise network connected applications and data sources. With the development of dynamic e-commerce, EAI has been extended to a wider range. Enterprises not only need to integrate internal and external application systems to support current business operations, but also need a flexible, easy to extend and change, integrated system to support changing business logic.This thesis conducts in-depth study of the EAI, based on a detailed analysis of service-oriented architecture and workflow technology, a SOA-based process-oriented enterprise application integration architecture is proposed, and its architecture and services are discussed in detail. Specific work mainly are in the following areas:(1) Based on the analysis of traditional EAI integration patterns, SOA architecture and workflow technology, the SOA-based process-oriented enterprise application integration architecture is proposed, which is suitable current and future requirements of Enterprise Application Integration.In this thesis, the current development level, the process and common integration structure of enterprise application are analyzed, the Lack of traditional enterprise application integration is found. Enterprise Urgent need for an integrated solution that can start from business process and integrates the overall supply chain heterogeneous systems. Based on the above point of view, this thesis presents a new EAI integration architecture, the SOA-based process-oriented enterprise application integration framework. It can take the depth into account, and as well the breadth of enterprise application integration, on the base of the enterprise's business process, By way of providing selected services inside enterprises and between enterprises, integrate effectively the whole supply chain and its dynamic members of the alliance, To fully enhance their capacity and efficiency of processing operations, significantly enhance their competitive ability.(2) A detailed design for the SOA-based process-oriented enterprise application integration framework is put forward, including from architecture, hierarchical structure to the basic services provided, and the advantages of the integrated architecture are discussed.The SOA-based process-oriented enterprise application integration framework can be divided into five levels, namely, application service layer (to provide application integration services), application link layer (to connect the service to the business process layer), core service layer (to provide shared services, application integration, such as directory services, etc.), business process integration layer (to integrate all services), user interface integration layer. The whole structure should include the basic services, including application interface services, data integration services, information services and directory services, This thesis discusses in detail the technical realization of the four basic services, so as to come to the integrated architecture with the advantages of high scalability, high reusability and centralized management.(3) The detailed steps of enterprises to build the integrated architecture are summarized.In this thesis, an order process is taken as an example. BEA's Weblogic Platform 8.1 development tools are chosen to deploy the enterprise application integration based on the order process, the implementation of how to build SOA-based enterprise application integration is discussed, the results show that the integrated framework is available and effective in the actual process of enterprise application integration.