Technology Research, Exchange Of Xml-based Database

Nowadays the Information System is used in almost every trade in our society and play avery important role.With the development of InterNet it become possible that the imformationcan be shared in Web.Almost every lage-scale,medium-sized and small company become more andmore depending on IT.The Information Sharing change the working-way of people,the efficiencyand collaboration of work between enterprises is promoted and strengthened through this way.Butthere is a problem,because former Information System was built independently in differentway,the data and information between Information Systems is heterogeneous,so communication andResource Sharing appers hard.The result is there appears a lot of singleInformation-Island,which has become one of the main problems in enterprise information. Withthe vigorous development of the information industry by sharing information about theinconsistencies, redundancy issues are becoming more and more prominent. Many enterpriseinformationization the higher, the more isolated island information, information sharing andthe problems facing the more acute, it is a challenge, an urgent problem need to be solved.The data of various construct internal and external one system could be integrated byIntegration of heterogeneous data.Some important Enterprise-Application, such as PDM,EAI,ERP and so on,depend on the Integration very much. Traditional method is to establish a unifieddata model to provide a unified data isomerization unit said, storage and management methodsin order to provide a unified operation. Although it can integrate various enterprise dataresources relevant to the purpose of data integration, which is not only cost, too complex anddifficult to maintain, but also have great difficulty achieving together. At present, generallyIntegration of heterogeneous data is through the network to exchange data, the use of middlewareto achieve system Songouhe integration.Because of the lack of research in this area, This article put forward a data exchange basedon XML technology : intergrating various data by the use of XML as a middleware. Data exchangeis be divided into relatively independent and three interrelated components : data extraction,data mapping and data loading. Data extraction is be responsible for the extraction of sourcedatabase migrated to the data exchange of documents;Data mapping is be responsible for theexchange of documents through the middle documents converted into goals exchange ofdocuments;Data loading imports data in the target exchange file into target database.The articleputs forward complete system chart, detailed its principles, the three parts of the correspondingdata extraction tool, data mapping tool, data loading tool including charts. Finally the actualelaborated on how to applications. With the gradual advance of information technology and the rapid expansion of informationand data integration will increasingly broad scope of the various data integration requirementswill become increasingly urgent. The article's title comes from actual project,and thereforehas an important theoretical and practical value. Modest means is be expected contribute tothe development of isomerizated data integration through the article's research.