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Which of the following is the MOST critical and contributes the greatest to the quality of data in a data ware

Which of the following is the MOST critical and contributes the greatest to the quality of data in a data warehouse?

A. Accuracy of the source data

B. Credibility of the data source

C. Accuracy of the extraction process

D. Accuracy of the data transformation

Explanation:

Accuracy of source data is a prerequisite for the quality of the data in a data warehouse. Credibility of the data source, accurate extraction processes and accurate transformation routines are all important, but would not change inaccurate data into quality (accurate) data.


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