One approach to data warehouse design is to develop and implement a “dimensional model.” This has given rise to dimensional analysis (sometimes generalized as multi-dimensional analysis ).

It was noticed quite early on when data warehouses started to be developed that, whenever decision makers were asked to describe the kinds of questions they would like to get answers to regarding their organizations, they almost always wanted the following:

  • Summarized information with the ability to break the summaries into more detail

  • Analysis of the summarized information across their own organizational components such as “departments” or “regions”

  • Ability to “slice and dice” the information in any way they chose

  • Display of the information ...

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