Knobit of Data modelling · K-126 · Skill

Recognises a requirements register describing no events

What it means

Requirements describe nouns and their attributes, and nothing about what happens to them: status changes, reopenings, payments, corrections, cancellations. Events carry most volume, history and temporal rules.

How it is assessed

Flags the deficient case and passes the acceptable one. Deficient: Twelve requirements about account attributes, none about how an account becomes dormant or blocked, or what a status change must record Acceptable: "Every change of account status must record the date, the new status and the reason." "Every payment reversal must record …"

Builds on

Explains the scope, events and questions a data register must stateK-158 · Knowledge
Explains the types of modelled dataK-902 · Knowledge

Needed by

None