摘要
在地理信息系统的数据原子中加入了数据质量量测指标。提出了地理数据在地理信息系统各阶段的数据质量模型，归纳了影响地理信息系统数据质量的因素和３种质量控制方法。
According to the position in the data flowing graph in GIS, geographic data are classified into the following kinds: first data, database data, middle data and final data. An index for measuring data quality is added to the data “atom” in GIS. The geographic data quality model at different step in GIS is proposed. The analysis of the models indicates that the data quality of first data plays the most important role in GIS products. The factors effecting the data quality in GIS and three quality control ways are generalized.
出处
《武汉测绘科技大学学报》
CSCD
1999年第2期134-137,141,共5页
Geomatics and Information Science of Wuhan University
基金
测绘科技发展基金
