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Three Data Warehouse Models

  • Enterprise warehouse
    • collects all of the information about subjects spanning the entire organization
  • Data Mart
    • a subset of corporate-wide data that is of value to a specific groups of users. Its scope is confined to specific, selected groups, such as marketing data mart
      • Independent vs. dependent (directly from warehouse) data mart
  • Virtual warehouse
    • A set of views over operational databases
    • Only some of the possible summary views may be materialized

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