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Data Warehouse—Integrated

  • Constructed by integrating multiple, heterogeneous data sources
    • relational databases, flat files, on-line transaction records
  • Data cleaning and data integration techniques are applied.
    • Ensure consistency in naming conventions, encoding structures, attribute measures, etc. among different data sources
      • E.g., Hotel price: currency, tax, breakfast covered, etc.
    • When data is moved to the warehouse, it is converted.

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