Progress · The markers · Element
The measures
What is measured, and what it indicates.
The part
What it is
Derived from the conditions rather than invented separately, so that progress on a marker means progress on something the vision actually requires.
Three or four is enough. A larger set produces a dashboard nobody reads and a debate about weighting.
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.