Manager might face with troubles if she wants to find data about past events since most firms only make the current data immediately available.
- Data Warehousing address all of these problems.
Data Warehouse makes the data available for anyone to access, as needed. However, data on Warehouse cannot be altered by the users.
A Data Warehouse System also provide a range of Ad-hoc and Standardized
Query tools, Analytical tools, and Graphic reporting facilities.
Many Companies use Intranet Portals to make the Data Warehouse Information widely available across the firm.