Skilirium

Stage 5: Derive the logical data model

Knobit of Data modelling · K-565 · Knowledge

Explains derived data and point-in-time snapshots

What it means

A derivable value can be computed and need not be stored; a snapshot keeps a value as it stood and is not derived.

How it is assessed

Classifies sample attributes as derivable, snapshot or base data and says what each derivation reads

Builds on

  • None

Needed by