In the past five years, the data warehouse/data mart marketplace has grown from wishful thinking to reality. In the beginning, there were some concepts that were known as the architected DSS/data warehouse environment. To implement those concepts there were a few immature products. Today the data warehouse/data mart marketplace is flush with new and recycled products, and each new trade show brings even more products and innovations to the marketplace. Figure 1 is a brief depiction of the data warehouse/data mart marketplace segmentation as of the autumn/winter of 1997.

There are many and diverse segments to the data warehouse marketplace. The following are the different components and subcomponents of the data warehouse/data mart marketplace:

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