Welcome

Prepared by :

Mohiminul IslamID: 114121044

2. Data warehouse.

1. Competitive advantage of using IT .

What is data warehouse ?

Ralph Kimball

Bill Inmon

Data Warehouse Architecture :

D.MD.M

D.MD.M

D.M

D.M

Datawarehouse

Datawarehouse

Top-Down Approach

Bottom-Up Approach

6

Why use data warehouse ???

I can’t find the data I need. I can’t use the data I found. I need an expert to get the

data. I can’t understand the data I

found.

What is IT ???

Competitive advantage of using IT :

• Communication technology.• Business Sector.• Relationship with customers.• Virtual meeting. • Internet.

Competitive advantage of using IT :

• Make our life easier .• Security.• Cloud computing.• Data center servers. • Programming.

Thank you all