【摘要】 空间数据质量问题是GIS系统建设成功与否的关键。首先对GIS中空间数据质量问题的引起原因和表现方式进行分析,并通过对元数据方法的分析和扩充,试图探寻一种能对数据质量进行有效管理的方法,以提高GIS空间数据库质量问题的可靠性和可控性。更多还原

【Abstract】 Spatial data quality is the key factor of the successful conslructing of GIS. This paper firstly analyzes the causation and representation type of spatial data quality, then analyzes and extend the metadata method. The main idea is to find out an efficiency method of quality management, the final aim is to improve the quality control efficiency and reliability.更多还原