The Research And Realization Heterogeneous Data Exchange System Based On XML

Data exchange is one of the main influencing factors of development of enterprises information. Its goal is to realize the sharing of the data in the heterogeneous environment (loose coupling, different data format, heterogeneous platform, heterogeneous area, and so on), thus utilizes resources effectively, improves the performance of the whole application system, accelerates data circulation of information system , and realizes the sharing and integration of the data. But various exchange technologies have many problems when apply to heterogeneous environments. The common question includes heavy coupling, high costs and complicated implementing. The emergence of XML and Web Services technology has brought the new implementation method. This paper targets as data exchange based heterogeneous environment and one general heterogeneous data exchange system is designed and implemented by the technology of XML and Web Services.First, various current data exchange technologies are compared, according to the old technologies' shortcoming of lacking uniform standard, High platform dependence and heavy system coupling, the adoption of XML and Web Service technology to realize the data exchange in heterogeneous environment are put forward.Furthermore, XML and Web Service and related technologies are researched in depth, based on the analysis of common data exchange mode and topology, a XML, Web Service-based heterogeneous data exchange framework is designed. Archetecture, working process and module function of the framework are introduced, the design and realization of key module, such as map of XML document and database information, the extraction of XML Schemas, transmission and reception of XML document, encapsulation and parsing of inter-XML document map and XML document attribute, and the integration of data exchange system with other systems , security problem of the systems and the possible solution are analyzed.Finally, practical application of XML-based heterogeneous data exchange system in enterprises is introduced. The feasibility of system framework is certified in practice, and the defects and further improvement of the system are pointed out.