Bentham & Hooker's Classification. along with the merits and demerits of the ...
Data mining
1.
2. Data mart is a subset of a data warehouse
Date mart means part of the data warehouse
It single subject like for example
Sale,HR,accounts
3.
4. Extract
Transformation
Load
Extract data from the operational database.
Transform the data accroding the
requirnment of the data warehouse.
Various data integrated the data warehouse
5.
6. HR manager want only HR details.
Sales manager analyze only sales data.
Data warehouse is a high level managements
Data mart is a middle level managements
7. Top down
Bottom up
Top down means first create data warehouse
and create data mart
Bottom up means first create data mart and
data mart integrated the data warehouse.
