Service Oriented EAI Architecture Study Based On Enterprise Service Bus

Enterprise Application Integration,EAI is one of the important means to improve enterprise information system to achieve business goals and enhance the competitiveness.The complexity of enterprise information system embodys in the multilevel nature of the static system structure,as well as the changes during the development of the enterprise.In order to standardize such a complex system design and operation,it is necessary to establish a framework from the perspective of the overall enterprise.This paper studies the Service Oriented Architecture and proposes a service-oriented enterprise information system static reference model.This paper proposes and analyzes the services layer reference model based on the Enterprise Service Bus.The reference model describes the static service layer and the interactive relationship between service layer and other layer.The service layer is subdivided into the adapter layer,the bus layer and business support layer.This paper proposes three reference model for each sub layer of the service layer.This study uses Alqua logic servic bus to sovle three types of EAI problems which are integration of legacy applications,integration of new applications and integration based on the application already exists.This paper proposes solution based on enterprise service bus for each problem.