Answer:
Operational systems are integrated.
Explanation:
A data warehouse can be defined as a large collection of data gathered or collected from various sources within an organization and managed to provide a guide for making decisions by the management.
This ultimately implies that, a data warehouse avails the management of an organization the ability to collect, analyze and manage data in order to gain meaningful insights and aid in the decision-making process.
In terms of data warehousing and business intelligence, the following statements are true and correct;
I. Does not include information from other operational applications.
II. Operational information is mainly current.
III. Operational information frequently has quality issues.
