摘要
该文从空间数据仓库(SDW)的产生与发展入手,对SDW的内容及功能要求作了比较详细的描述,并对SDW中空间元数据与地理实体及地理空间数据的关系进行了分析,以信息流程的方式对SDW的基本体系结构模型进行了详尽的描述。
This paper introduces the generation and developments of Spatial Data Warehouse(SDW),and some subjects included the contents and functions of the SDW have been described in detail. Meanwhile, the relationship between spatial metadata, geographical entities and geographical spatial data is analyzed. At last, the basic structuresof the SDW are explained in the form of info--flow chat.
出处
《计算机工程与应用》
CSCD
北大核心
1999年第12期16-18,共3页
Computer Engineering and Applications
基金
国家自然科学基金!59478013
关键词
空间数据仓库
空间数据库
元数据
GIS
Data warehouse, Spatial data warehouse, spatial database, geospatial metadata, metadata