The Research And Application Of E-Government Heterogeneous Data Resource Integration Technology

It is an inevitable trend of the development of information society that implementation of Electronic Government, reform and optimization of histology and work flow of governments, establishment of a rightsizing, efficient, incorruptible and fair virtual government and providing efficient, dynamite management and service with transparent specification to the whole society. The important point of implementation of virtual government is to resolve the problem of data integration and cooperation between different business processing departments and office systems. Data integration is the basis and key of E-Government system integration. It plays an important role in promoting the standardization of E-Government systems and implementation of cooperative working.Aiming at the requirements of data integration in the E-Government systems, this paper researches and analyzes the architecture and inner process of Globus and OGSA-DAL, proposes a design scheme of data integration platform based on Grid Service technology which resolves the problem of dynamic integration of heterogeneous databases.With the development of XML technology, Grid service technology, database integration technology, this paper mainly discusses the design and implementation for the data integration platform of E-government. We provide services for different data nodes through standard grid service interfaces and use XML to eliminate heterogeneity of data model from various systems. This platform can integrate different business systems into grid environment. It provides a lot of functions such as the releasing of data resources, data querying and data extracting, etc. So that we can visit and query data of self-governed and distributing systems.This paper gives the tests and results for this integration platform and analyzes the characteristic of this platform with the application examples. This platform has qualities of extensibility, loosing-couple and autonomy. Finally, this paper makes a sum-up and points out some things to be perfected in the future.