Data Warehouse
Imagine a company with many departments. Each department keeps data in different Database
Management System depend on each department familiarity and preference. It
appears to be difficult for management to access or view data they would like
to see due to dissimilarity and decentralization of Database Management System
platforms each department using.
Data
Warehouse is the concept of gathering all data across the organization in
one place to support management decision making process. Data Warehouse is
subject-oriented and data stored will be used by Business Intelligence (Query
& Report, OLAP, and Data Mining) approach for the purpose of analysis in order
management to be more comprehensive to the data collected.
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