Stage 6: Design the physical data model
Knobit of Data modelling · K-659 · Knowledge
Explains grain and additivity in dimensional models
What it means
One row means one thing; measures are additive, semi-additive or non-additive.
How it is assessed
States the grain of sample fact tables and the additivity of their measures
Builds on
- Explains dimensional modellingK-905 · Knowledge
Needed by
- Recognises a fact table of mixed grainK-626 · Skill
- Recognises a measure without stated additivityK-627 · Skill