The Technology and Application of Spatial Data Warehouse
空间数据仓库的技术与实践

As the combination of Data Warehouse and GIS, Spatial Data Warehouse is a large database designed to support the needs of decision making. For this purpose, it has some new features that are different from those of the traditional database, such as integrated, subject oriented, time and spatial variant. The emergence of Spatial Data Warehouse extends the scope of the applications of GIS and supports the research on global change, development of region and complex analysis of commerce. The system of Spatial Data Warehouse mainly includes four components. These are data source, tools of data transformation, warehouse, and analytical tools. All of these components involve some new and key technologies. We must find answers about how to define an efficient spatial data structure, integrate various data source, and find information from raw data. They are critical to the success of building spatial data warehouse.From emergence system architecture to building an application of Spatial Data Warehouse, this article discusses this very new GIS application.