Take data warehouse as foundation, with the aid of on Line Analytical Processing and data Mining technology, the composition and design of enterprise Decision Support System are put forward.

From the point of view of data, this article discusses the concept of data driven decision support system, its connotation, as well as data warehouse, on line Analytical Processing and data mining.

Misunderstanding: XQuery offers nothing to On-Line Analytical Processing (OLAP) and data warehousing applications.