Research And Application Of Enterprise Application Integration Framework On Soa

Nowadays, with information technology developing rapidly, enterprise information system is getting larger and the system architecture becomes more and more complex. As a result, enterprise faces a dynamic business environment, where a business component change may lead to the medication of all the other components in the system. The change is a big amount especially for a large enterprise information system. Therefore, enterprise needs to improve their information system architecture to make system more flexible, reusable and open.SOA (Service-Oriented Architecture) comes to provide the solution to the problem enterprise is facing. SOA proposes the concept of service component model, packs the different function units of application into service using XML (Extensive Makeup Language) as the description language. SOA makes the services independent from hardware platforms and programming languages and achieve system reusability. Web Service is the base specification for SOA implementation. It uses XML language as the unified language to describe the interface of service, and provide open and standard methods for service publishing and access. Web Services are widely used, with expansion capabilities, and there are many open frameworks or language developed on Web Services, such as SCA service components.This paper mainly studies enterprise application integration framework based on SOA, include SOA basic thought, Web Service implementation technologies, enterprise integration framework developing history and popular SOA implementation technology framework. This paper use SCA (Service Component Architecture) as SOA implementation, and makes analysis on SDO (Service Data Objects), SCA and BPEL and the integration of them. In the enterprise application integration framework design and application, Shenzhen Potevio electric vehicles and station network management system is used as a legacy system. The system is designed by hierarchy. In the service layer, SCA conducts function units packed into service, BPEL achieves business orchestration and SDO combined with hibernate implements database operation. Using SCA technology makes legacy system more flexible, reusable and open.