Which of the following is the most important element in the design of a data warehouse?

A.
Quality of the metadata

B.
Speed of the transactions

C.
Volatility of the data

D.
Vulnerability of the system

Explanation:
Quality of the metadata is the most important element in the design of a data warehouse. A data warehouse is a copy of transaction data specifically structured for query and analysis. Metadata aim to provide a table of contents to the information stored in the data warehouse. Companies that have built warehouses believe that metadata are the most important component of the warehouse.