The Basic Structure Design Of Spatial Date Infrastructure

As economic and social development accelerates, the land utilizes and changes are becoming more and more frequent. How to use land resources effectively has been a very important issue to the land management department of Chinese government. The Cooperation between lands related data and administrators is the most effective way of land management. To fulfill this goal, informationization of land management should be seen as the basis of the whole. Resent development of computer technology and Web technology provide essential technique for the basic Spatial Date Infrastructure (SDI). Hereby, the sustainability and affectivity of the land management can be realized. While, there are too many different land information system that based on different GIS which are hard to exchange and share land information date among them. Besides that, those land information system merely emphasize the data and graph analysis function but neglect the great demand of office management system and operation management system.This paper focused on the negligence of other land information system and also tries to absorb the advantages of them. Then, design the basis of Spatial Date Infrastructure which can be used by every level land management office of government, including office management system and operation management system and land information data analysis functions, cadastral information operation functions, could exchange data within the internet and intranet for government staffs or public, and also has good compatibility and extensibility.The paper exploits UML (Unified Modeling Language) to design the model of the system. Carrying on the data modeling with the UML language, may describe the static relationship between objects and objects'components directly, vividly and standard. Therefore, these models can descript land information infrastructure data type really. The information infrastructure is consisted of four main data packages: Land Administrative Units, Land Resource Area, legal real-estate Object class as well as Topographic Object Class.