The use of an organisation's operational data as the source data for a BI system is not usually recommended because it ________.
A)considers only external data and not internal data regarding an organisation's functions
B)is not possible to create reports based on operational data
C)requires considerable processing and can drastically reduce system performance
D)is not possible to perform business intelligence analyses on operational data

Question

Quizplus · Accepted Answer

Using an organisation's operational data as the source data for a BI system can require considerable processing and can drastically reduce system performance. It is better to extract data from operational systems and transform it into a suitable format for BI purposes, rather than burdening the operational systems with additional processing.

The Use of an Organisation's Operational Data as the Source