THE STATE AND TRENDS IN CIS
地理信息系统的现状及其技术系统的研究动向

Geographical information system as a new and advanced technology system has been used in the area of spatial information processing for more than ten years, This paper discusses the state and problems of GIS and than suggests the following six aspects of development trends; 1. Spatial relations theory 2. The application of artificial intelligence and development of expert system 3. Data aggregation and generalization 4. Exploratory data analysis 5. Data basa queries 6. Modeling