The Research And Realization Of Data Exchange System In Railway Construction Project Management Information System

Data exchanging plays an important role in EAI (Enterprise Application Integration). It aims at the realization of sharing information and data between heterogeneous system of an enterprise, so that they can make use of resource efficiently. And providing source of knowledge to decision support system finally. So it is important to build a data exchanging system.Railway construction projects manage system (RCPMIS) is served for special passenger railway construction. Its aim is managing construction more efficiently and reasonably. The system deploys on construct department. The construct department control builders which are far away from each other. The system is an identical heterogeneous system because of its numerous sub systems and complex relation on business. It is a big challenge to share data in them. Moreover, we will build a higher system on this system to manage construction of special passenger railway all over the China (it will manage construction of all kind of railway in China finally). We will consider the data exchanging of the higher system and RCPMIS.It is clearly that it is very difficult to build a uniform data exchanging system. This article analyzes some data exchanging methods first, and then proposes that a method of data exchanging use XML and WEB services.By the research of basic theory, this article designs a framework of data exchange system based on the two techniques. And also introduces the architecture, flow and related techniques. The security of the data exchange system is also analyzed in this article.Finally, the article gives an example of usage of the data exchange system, and verified the possibility of the system framework. This article also analyzes the insufficiency of the system.