Knobit of Data modelling · K-111 · Skill

Recognises an absolute statement with its exception unasked

What it means

every, always, never, exactly one, all stated with nobody having asked when it is not true. Usually the optional side has been assumed mandatory because the sample data always had a value.

How it is assessed

Flags the deficient case and passes the acceptable one. Deficient: "Every account has one account holder." Acceptable: "Every sole account has exactly one account holder. A joint account has at least two." (both sourced, or the second as an `open_question`)

Builds on

Explains singular and unambiguous requirement statementsK-151 · Knowledge

Needed by

None