Research And Implement On Integration Data System Based On XML

On account of lack unified programming, business standard and other impersonal reason, the related application system has been established by each business agency of public security due to the need of self-requirement, mass system is separated from each other, the phenomena of information island is serious. With the rapid development of techinique and the increasingly tightness of each business agency, it's more and more important that these isolated system are contacted organically and sharing degree is improved. So, conformiting and integrating these heterogeneous data resource becomes an important subject on building public security informationization.In this paper, we made a project research about XML- based heterogeneous data integration relying on the Qinghai public security unit information resources integrated search platform projects made by our unit, try to solve isomerous problem of data model in public security field.. Firstly this paper analyses data problem which exists in public security informationization, analyses basic theory and related technology of integrating data resource, and focuses on the concept of data integration, the problem which needs to be solved, the method of data integration, and so on. According to the demand analysis of data integration in the public security system and analysis of the advantages of XML, this paper proposes to integrate public security heterogeneous data by using XML technology. On this basis, this paper designs a XML-based data integration platform framework PHDIS for the public security. The framework makes typical Mediator - Wrapper architecture as a platform frame structure by using a mediator, and makes description about partial view of the global and local by using XML. Thus, local characteristics of each system is hidden, the transparency of the platform is improved. Using this system, public security organs can integrate heterogeneous data of application systems in the various departments, share data, lower development costs and risks, and improve office efficiency, greatly enhancing the public security departments coordinated combat capability, making a initial target of informationization in the public security sector.Research worked by this paper includes the following several points:1) Researches related theories of isomerous data integration, in-depth analysis of the causes for the heterogeneous data integration process and the need to resolve a number of issues, the integration of heterogeneous data sources, proposes Mediator-Wrapper public security data-integration frame in base of XML.2) According to the relevant norms of the Ministry of Public Security and the provisions of the Public Security heterogeneous data characteristics, designs the public security heterogeneous data integration framework, achieves in functions of wrapper and integration of the processor.3) Proposes a query language based on the XML, design and realize inquiry processor, makes requests and inquiries to customer response use the unified format expression, the system has good consistency.4) Making a test of resident population, personnel at large management system , crime committing person management system, indicating that the designing of system is feasible, with a combination of the practical application case in public security work.