Technical Research for Carrying out the GIS''s Applied Models
地理信息系统应用模型实现技术研究

It is quite important for the GIS's applied models to support their special decision system. So the development of the management system of the applied models, their base and the research of the realizable technology has become the key to GIS's further application. In the paper, series of technical problems in relevance to GIS's applied models have been analyzed in retrospect of GIS's technical development and its function. At the same time, relevant programs and approaches have been put forward in order to solve such problems as model's effective management, sharing and security, the integration of the GIS and applied models, the communication mechanism of model base and database, model visualization its mutual operation and so on. At the conclusion of the paper, in combination with the "Ninth-five" plan, "the demonstration system for the spacial information share and service of the environment protection will be built", the model realization of the approcah and technology has been described, with an example of the planar pollution and diffusion models in Yangtze River.