Framework of campus data grid environment

With the rapid development of the Internet and information system,more and more information flood in.So information in-tegration becomes hot spot.Based on the technology of data grid,a campus data grid environment is discussed to solve the problem of campus information management.The platform constructed a hierarchical model of information integration by using OGSA-DAI.The information in the campus is integrated and shared fully an efficiently on this platform.Moreover,it can resolve the problem of hetero-geneous data integration,location transparent access,uniform interface and etc.And multi-layer security architecture of the model is also presented.