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Data quality

Data quality expresses the extent to which information is fit for a particular use

What it means, how it is used and where it comes up, with its related concepts.

What it is and how it works

It can take into account accuracy, completeness, consistency, timeliness and other dimensions. Controls should respond to specific decisions and consequences. A data set may be good enough for exploring trends but not for carrying out an individual operation.

Variants and linked concepts

  • Deduplication. Deduplication identifies repeated records to avoid double counting or duplicated actions, using rules that must preserve valid information.

Related concepts

Data quality: what it is and how it works · Zorraquino