The SOA Model And System Of Collaborative Purchase Business Among Enterprises

With the intense competition in the market, the links among enterprises become more and more close, and operational synergies among enterprises become frequent and important. At the same time, in the development of the information industry, enterprises produce a lot of software systems, and most of them are implemented separate, independent existence, based on different platforms, programmed by different programming language which makes the exchange and sharing of information become very difficult among different systems. Service Oriented Architecture is a component model,which links the different components through the well-defined interface. The interface is defined in a neutral manner, independent of any hardware platform, operating system and programming language, which simplify the integration of heterogeneous systems.In this dissertation, through the analysis of candidate service in the SOA, we abstract the candidate service model in a higher level, and through the analysis of services object, we put forward a Services Object Model. A single service object only can complete Simple function, we need arrange service objects accoding to the business model to complete complicated business process. In this dissertation, we put forward a Business Process Model based on Services Object. Based on the characteristic of Service Oriented Architecture, we put forward a System Architecture Model based on ESB.In this dissertation, combining traditional software design method, we present a method of build system that based on SOA. In this dissertation, based on the research and development of collaborative purchase system among enterprises, we validate the method.In the process of building the collaborative purchase system among enterprises, firstly, we build the business models according to the business requirement, and discover the candidate services from business models. Then, we establish system service models for the collaborative purchase system among enterprises. On this basis, we design the models and explain how to realize services using Web Services technology, which introduces SOA from the concept to the realization. We also study the service choreography combine process running in the collaborative purchase system among enterprises. Then, we explore the method of service choreography using BPEL. Finally, we introduce the way of deploying services to the ESB.