Data Warehouse and Business Intelligence Systems
The purpose of Data Warehouse (DW) and Business Intelligence processes and systems is to unearth and exploit the valuable nuggets of information buried in mountains of operational data of scant informational value, retrieving them from company Databases distributed across disparate and heterogeneous platforms.
Specifically, Data Mining tools have become essential to understanding, maintaining, incentivizing and expanding a company's customer base, through market segmentation, popularity rating analyses and targeted marketing campaigns.

Fig 4. Architecture of a data warehouse
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* Contributed by -
Siddharth Mohan Patnaik, B.Tech. (Electronics),
Ravulpathi Janaki, B.Tech. (Mechanical),
II Year, IIM Lucknow.