Space Vector Data Fusion Problem

With the further development of GIS, the demand of spatial data becomes more and more urgent. A great deal of repetition capturing brings not only large waste of manpower and financial power but also different means of spatial data . In order to solve the problem , this paper put forward a solution for spatial data integration .By spatial data integration, the difference caused by spatial data model, classification and geometry position are eliminated . For realizing data sharing, enlarging the scope for data application, reducing the expenses for data maintenance and acquiring and satisfying some particular data produce , this paper explores a new way.This article gives out the definition of data integration,discusses the corresponding technic of data integration, which is integration of data model, classification of geographic element and geometry location,Combined with the instance of integration of digital topographic map and marine map, this article present the process in detail. At last , we make an expectation for technic of data integration . Interoperability will be the main means for data integration to use.