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 decreases value to data.
C) A separate data warehouse increases contention for resources.
D) Only operational systems allow SQL statements.

Question

Quizplus · Accepted Answer

Operational and informational systems are separated because a data warehouse centralizes data from various operational systems, making it available for decision support, which is crucial for informed decision-making.

Operational and Informational Systems Are Generally Separated Because of Which