Definition of Data warehousing and data mining

Extracting data from legacy systems and other resources; cleaning, scrubbing and preparing data for decision support; maintaining data in appropriate data stores; accessing and analysing data using a variety of end-user tools; and mining data for significant relationships. The primary purpose of these efforts is to provide easy access to specially prepared data that can be used with decision support applications such as management reports, queries, decision support systems, executive information systems and data mining.

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