The mix · The split · Element
The drift
How the split has moved over time.
The part
What it is
It moves towards capture in every organisation that does not actively hold it, because capture reports better every quarter.
Tracking it over years makes a slow reallocation visible before its effect arrives.
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.