A Research On Modeling And Design Of SOA-based Virtual Enterprise Multi-source Heterogeneous Service Integration

Virtual Enterprise(VE) is a time-bound mutually beneficial alliance,which formed by different members with different resources and advantages,for winning the competition opportunity in the marketing competition.Virtual enterprise can integrate the necessary core resources quickly in the world without taking the organization size,geographical location,computing environments,etc.However,the different underlying structure of the operation mode,different communication protocols and varies external exchange data format,lead to the extremely difficulties of information exchange,data integration and application integration among enterprises,therefore the wider possibility of cooperation among enterprise is greatly limited.How to achieve rapid seamless integration among enterprises which have multi-source heterogeneous characteristics has been the focus of building virtual enterprise.The representative technologies to solve the above problem are CORBA and COM/DCOM.However,as object request in CORBA and COM/DCOM environment is using binary transmission,the requesting party and services are closely coupled,once the service-side interface changes,the client must be amended accordingly,otherwise the system may collapse;and the communication port is dynamically allocated,the request is likely to be a firewall refused;in addition, COM/DCOM technology does not support cross-platform.Loosely coupled links between the requesting side and the service side will fundamentally solve the deficiencies.In recent years,unprecedented progress is made in highly heterogeneous software systems interoperability with proposal of SOA(Service-Oriented Architecture) and adoption of the core Web Service standards - SOAP and WSDL, new Web Services standards are proposed based on the security,reliability, transaction and other characteristics,the research results provide new thinking and new methods to realize the rapid free seamless integration between members which compose virtual enterprise.In this paper,combined author's recent research results of virtual enterprise,a stable and easy-to-achieve virtual enterprise multi-source heterogeneous service integration model is proposed;the organzational structure, architecture and operation process are described in detail;and the information management model,information structure model and access control model are analysed in depth;and a theoretical foundation,the program realization and the specific method for building a stable and efficient virtual enterprise and realizing virtual enterprises rapid seamless integration among its members are provided.