Sizing · The sanity check · Element
The implications
What the figure implies about share, volume or capacity.
The part
What it is
If the sizing implies a share no company in the category has ever held, or a volume the organisation could not physically serve, the figure is wrong.
Implications are quick to derive and are the fastest available error check.
The smallest level
The attributes it carries
Each attribute is one of the framework’s shared types. What a date is, and how it is written, is defined once for the whole model — the note here says what it means in this particular place.