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Data warehousing is a collection of decision support technologies, aimed at enabling the knowledge worker to make better and faster decisions. A data warehouse is a subject-oriented, integrated, time varying, non-volatile collection of data that is used primarily in organizational decision making. Data warehouse supports on-line analytical processing, the functional and performance requirements of which are quite different from those of the on-line transaction processing applications traditionally supported by the operational databases. In this paper author suggest that for a strategic solution, the hub and spoke / centralised architecture is the more likely choice

Sandeep Singh and Sona Malhotra

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