Research on Heterogeneous Data Integration for Information Engineering Surveillance Based on XML

Based on the features of data involved in information engineering surveillance,a data integration system for information engineering surveillance with three layers architecture was devised by XML technology and Web Services technology.The data integration system combined XML technology with overall data model.Based on data interacting by XML technology in middle layer,the system can converse and integrate all types of heterogeneous data from different data sources,so that it can provide heterogeneous specimen-databases with unified inquiery platform.The application results show that the system was characterized by transparency and independence and sharing,so that it benefited greatly to data management for surveillance of information system engineering.