Chapter 12

Data Quality

Good Decisions Rely on Quality Information

In Chapter 7 we described a process for soliciting data requirements from among the potential consumers of business intelligence (BI) and analytics, and part of that process yielded expectations for the quality of the source data to be used for analytics. Of course, if there are suspicions about the quality of the source data, that will lead to suspicions about the results, which can derail any decision-making process. Yet there is a difference between what is meant by managing the quality of data prior to its incorporation into a data analysis environment such as a data warehouse and cleansing data that has already been destined for the analytical platform.

In fact, we might ...

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