Stage 7: Derive data quality rules
Knobit of Data modelling · K-726 · Skill
Recognises an empty population reported as a pass
What it means
A check whose population is empty — the table did not load, the filter matches nothing, the expression errored — reporting 100 % or no failures. The dashboard is green exactly where nothing was looked at.
How it is assessed
Flags the deficient case and passes the acceptable one. Deficient: A completeness check on today's `payment` rows reports 100 % on a day the payment feed failed and loaded nothing Acceptable: The runner reports an empty population as its own outcome, not as a pass; a timeliness or volume check on the same table catches the missing load
Builds on
- Explains the population, measure and threshold of a checkK-753 · Knowledge
Needed by
- None