Data Warehousing Has More Colours Than Just Black White

摘要

Data warehouses are frequently described to be orthogonal to operational database systems. In this paper, we show that such a point of view is often misleading as a data warehouse (a) often has to share structures and issues with the OLTP systems that are linked to the data warehouse and (b) serves as an infrastructure element to support other tools for strategic management. We describe how data warehousing requirements evolve in that context.