Operational and informational systems are generally separated because of which of the following factors?
A) A data warehouse centralizes data that are scattered throughout disparate operational systems and makes them readily available for decision support applications.
B) A properly designed data warehouse adds value to data by improving their quality and consistency.
C) A separate data warehouse eliminates contention for resources that results when informational applications are confounded with operational processing.
D) All of the above

Question

Quizplus · Accepted Answer

Operational and informational systems are separated to centralize data, improve data quality and consistency, and eliminate resource contention, which are all addressed by a data warehouse.

Operational and Informational Systems Are Generally Separated Because of Which