Geographical Information system (GIS) is a newly designed attribute management system based on Geospatial database and supported by both software and hardware of modern computer.
The paper analyzes the appropriateness of geographical boundaries based on the change of attributes between their neighborhood polygons, and gives metric indicator of attribute uncertainties.
本文根据两相邻面域之间属性的变化程度探讨了地理边界的适宜性，并给出了属性不确定性度量指标。
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A geo-spatial entity which can be organized from geometric data, symbol data, entity data, attribute data is regarded as an object to the object oriented geographical information model.