Application Of Data Warehouse Technology To Enhance Decision-making Ability

Data Warehouse System is a kind of data-oriented Decision Support System(DSS), it breaks a new path for DSS, makes Computer-aided decision reach a new step. The paper starts with the frame of Data Warehouse System, discusses the every part of the Data Warehouse, which includes the Narrow Data Warehouse and the Decision support application-OLAP and DM.OLAP is a kind of data analysis technology, including MD-OLAP and ROLAP.DM deepens the data analysis, it automatically mines the interesting model hiding in mass data. The paper puts forward the model of reference about common corporations and detailed designs based on DW's requirements analysis, then discusses that how a corporation builds the DWS (Data Warehouse System).This paper's main breakthrough lies on: in the information condition of national corporations, how to improve the decision-making ability of corporation by DW technology ;bringing forward the model of reference about common corporation; constructing the DM model to control the quality of products.