DATA WAREHOUSE AND DATA SOURSES

DATA WAREHOUSE AND DATA SOURSES

1. Primary sources

   • Information "and" existing in the company and presumably computerized. As:
   • Number of sick. Claims received.
   • Number of errors in production processes.
   • Manufacturing times.
   • Satisfied claims
   • Balances.

2. A data warehouse is a corporate database that is characterized by integrating and debugging information from one or more different sources, then process allowing for analysis from countless of view and high speed response.

3. Prototype plane

   • characteristics
     • Thematic
     • Integrated
     • Nonvolatile
     • Historical

4. Data Sources

   • The information of all kinds, is absolutely necessary for the development of the company at all levels; information is essential not only as a source of knowledge but as a basis for decision making appropriate.
   • It is divided into primary and secondary sources.

5. Secondary sources

   • The information from secondary sources usually refers to issues not so intrinsically related to the organization, but absolutely necessary to assess their situation.
   • The information is collected outside the company or outside the normal processes of gathering information.