Data Exchange Between Systems Of Heterogeneous Database

With the expanding of enterprise business and the development of computer technology, enterprise designs all kinds of business information management system based on different operation system and database management system during the period of information construction. But exchange data from one to another one is difficult, so they came into being some"information isoland".In order to fulfill the increase of real-time information needed by customer and parter,enterprise have to exchange data between all kinds of business system to improve the data utilization and enhance data reliability.Data exchange is one of important components of all kinds of computer network applications and is also the foundational supporting layer of communicating and exchanging information between application systems. Owing to its extensibility, structural property, validity and other superior capabilities, XML becomes the standard language of textual format for describing structural information. XML technology is not only a single criterion but a technological system including XSL, XSLT, XLing, Xpointer, XPath, etc.The particular advantages of XML technology enable it to solve this kind of existent problem and to meet the need of data exchange and information integration between various heterogeneous systems.In this paper, we first introduce the XML, and then we research the implement process, theory and technology of data exchange. In the meantime, we also use the platform based on the JMS which regards the XML file as the exchange data format and uses XMLBeans to read data of XML file. Finally, we use an example of insurance to validate the rationality and practicality.