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Data & Analytics · Foundational

Data Accuracy

The data quality dimension measuring how well data values reflect the real-world entities or events they describe.

Definition

Accuracy is verified against an authoritative source or physical reality. A value can be valid (correct format) yet inaccurate (wrong value).

Example

A valid but wrong customer address.

Exam tip

Valid ≠ accurate: a properly formatted phone number can still be someone else's.

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