Researches On XML-based Heterogeneous Information Integration And Application For Communications System

With the development and application in computer technology, mass data has been increasingly accumulated among government branches. However, most of the designs in database system are unplanned as a whole, so that a great deal of isolated information is produced. And the isolated information will hamper our information construction.The dissertation put forward a Heterogeneous Information Integration theoretics frame and solves the problem of heterogeneous data sharing based on the XML Web Services technology.The dissertation, firstly, introduce the significance of data sharing and background of Heterogeneous Information Integration technology development domestic and overseas. Then, expatiate the XML theory and Web Service technology. Thirdly ,design e-government XML according the feature of domestic e-government by importing the XML into E-Gov,and then, put it into use in Communication Departmen. Fourthly, make a detailed research on the 4-layer frame of Heterogeneous Information Integration structure. This frame includes data source layer, XML middleware layer, Web Services interface layer and user application layer. In the meanwhile, discuss the function and implement of the Integration structure detailedly, include the construction of the data transport platform and the data integrate platform, XML data-binding. Lastly, give an example of Heterogeneous Information Integration platform in Guangdong Communication Department government as its implementation.