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ACCA Strategic Professional · Advanced Performance Management · Data science and analytics

Zenith Retail plc's performance team found that its customer dashboard shows the same customer under three slightly different name spellings, inflating the active-customer count. Which data quality dimension is most directly breached?

Uniqueness is breached. The same customer appears several times under different spellings, so each entity is not recorded once, which inflates the active-customer count. Timeliness, accessibility and relevance concern currency, ease of access and decision usefulness, not duplication.

  1. AUniqueness (absence of duplicate records)Correct
  2. BTimeliness of the data
  3. CAccessibility of the data
  4. DRelevance to the decision

Explanation

Duplicate records for one customer breach uniqueness, the dimension concerned with each real-world entity being recorded once. Timeliness concerns how current data is, accessibility concerns ease of retrieval, and relevance concerns fit to the decision; none of these explains inflated counts from duplicates.

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