Integrated Soa-based Enterprise-wide Information Technology Research

In modern society, in order to become more competitive and obtain more benefits in this fiercely competitive circumstance, enterprises have to pain more attention to informatization. But, lots of subsystems are built inside enterprise. Those susbsystems which form a lot of solitary information island usually operate independently and do not cooperate efficiently with each other. Moreover, modern enterprises are facing increasing market pressure, so they need some technology to integrate the different types of heterogeneous systems built in different periods and software systems across enterprises boundary. Under this kind of situation, SOA (Service-Oriented Architecture) is developed.SOA wants to make the enterprise application getting away from the tie of the technique oriented solution, and dealing with the demand of the variety and development of business service easily. The advantages of SOA are reusability, flexibility and complication. The main work of this dissertation focuses on the theory, design and implementation of SOA. Base On the deeply researching on the SOA theoretical mode , this paper gives us an overview about SOA and Web Service which is the best implement technology of SOA.In this paper, we analyze the present situation of the Changan group application system, the development demand and weakness of existing information system. We put forward the information integrated framework of integrated information base on Service-Oriented Architecture Which can dramatically lessen the dependence and complexity among different subsystem. It also can improve the flexibility of the deployed system and enhance the innovation ability of the enterprises.At last, the information integrated framework is applied to a real project: Vehicle Quality Control project of QC Dept. of Changan Group. This paper discusses the details of the system which consists of the presentation layer, business logic layer, service layer and data layer and the optimization of system structure and the construction of information-integration system which is highly efficient and reliable. Results indicate that the customers are satisfied with the performance and flexibility of the system. This paper provides a new method for enterprises which are integrating large-scale information system...