Question

Why is operational data not directly usable for strategic decision making in a data warehouse?

a.

It comes from many old legacy systems

b.

It is classified as complex data

c.

It lacks data integration

d.

It doesn't contain valuable information

Posted under Data Warehousing and OLAP

Answer: (a).It comes from many old legacy systems Explanation:Operational data is not directly usable for a data warehouse because it comes from many old legacy systems, and the data quality may not be sufficient.

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Q. Why is operational data not directly usable for strategic decision making in a data warehouse?

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