Fundamental stages of Data Warehousing

Question

Briefly describe the fundamental stages of Data Warehousing?

Answer 1

Offline Operational Databases: This is the preliminary stage of data warehousing. In this stage the expansion of database of an operational system to an off-line server is finished through basically copying the databases.

Offline Data warehouse: In this phase the data warehouses are updated on a standard time cycle from operational system and the data is kept at it in a reporting-oriented data structure.

Real time Data Warehouse: Data warehouses are updated depended on event or transaction basis in this stage. An operational system carries out a transaction each and every time.

Integrated Data Warehouse: The transactions or activity generation which is transferred into the operational system is done in this stage. Such generated transactions or transactions are employed in the everyday activity of the organization.