Research And Implementation Of Integrating Bpm System With Legacy System Based On Soa

Enterprises face new business challenges nowadays.Within the domain that the enterprise engaged in, new business requirements spring out,an acute issue that the IT enviroment of enterprises can not react to business changing agilety come forth.Enterprises should reform their structure and make innovations if they want to conquer the challenge in the competition.Introducing Business Process Management System to existed system is a focous. Enhancing informatization of a enterprise also need cooperation between different systems,so integration between BPM system and Legacy system became a hot researching subject.At the beginning, the paper systematicly expounds the theory of SOA and Web Service,analyses the loose coupling and coarse granularity characters of SOA,summarizes the steps of actual application of SOA concept. Then, the paper analyses the situation that enterprise introducing BPM system to their IT environment,summarize the assessment for Legacy system,discusses the advantages and disadvantages, points out the necessity and the key points of integrating BPM system with the Legacy system.The paper consults the trend of the development of SOA and BPM,bases on the cooperation of SOA and BPM,proposes an efficient way for integration of BPM system and Legacy system based on SOA,does a deep research on synchronazition process of service provider and service requirer,gives guidences for many aspects such as developers,developing behavior model and enterprise IT enviroment respectively.The integration method proposed by this paper comes form actual project and by the end of this paper, we implemented the method in actual project. we use the thinking of Service-Oriented Integration to model business process with using of FileNet, develop service exposed by Legacy system and integrate BPM system with Legacy system by web service implementation.With this method the developming process became light weight and synchronize process assures the accordance between service requirement and supply. With Achieving the integration of enterprise inner system,improving the efficiency,the method satisfies the requirement of the enterprise architecture for flexibility.