Database Design and Implement of Spatial Decision Support System for Water-Saving Agriculture, Based on Five Warehouse Structure

摘要

The key issue to make a decision support system (DSS) is the data description of modeling method and knowledge. The validity of data description directly affects the storage, maintenance, indexing and searching efficiency of the model and the knowledge. This article presents a five warehouse DSS design method based on water saving feature, which describes model, method, and knowledge in relational database. Integrating Database, Knowledge Database, Model Database, Method Database and GIS Space Database with relational database technology solves problems such as the difficulty of system maintenance and interface technology, and system low efficiency. This Spatial Decision Support System for Water-Saving Agriculture (WSA-SDSS) has gotten the copyright of software and is applied in practice..