There is much conversation about building data warehouses, cost justifying data warehouses and different forms of database design, but there is little talk about what management should expect when the warehouse has been successfully built. Exactly what should management look for when the money has been spent, the consultants have gone home and the data warehouse has been declared a success?
The first payoff a manager should see is that when a request is made for information, it should be answered in a short amount of time. If the request is a study looking at huge amounts of data with a statistics package, the results may be returned in a week or two. However, if the request is for a summarization of all Northeast sales for the past three years when there has been a blizzard, the results should be returned in a matter of hours (or occasionally even less time than that).
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