1. COMPONENTS OF A DATA-WAREHOUSE:
The primary components of a data-warehouse are
1. Source data component
Production data
internal data
Archived data
External data
2. Data staging component
Extraction of data
Transformation of data
Synonyms
Homonyms
Loading of data
3. Data storage component
4. Information delivery component
Novice users
Casual users
Business analyst
Power user
Senior executives
5. Meta-data component
Operational meta-data
Transformational meta-data
End user meta-data
6. Management & control component
2. Figure 1: Components of a Data-warehouse
Management
& Control
Component
Meta Data
Component
Information
Delivery
Component
Data Storage
Component
Data Staging
Component
Source Data
Component
Components of Data ware house
Production
Data Novice Users
Homonyms
Synonyms
Transformation
of Data
Extraction of
Data
External
Data
Archived
Data
Internal
Data
Loading of
Data
End User
Meta Data
Transformation
Meta Data
Operational
Meta Data
Senior
Executive
Power Users
Business
Analyst
Casual Users