Milestones · The go / no-go record · Element
Stopping authority
Who is empowered to stop the work, and what they would need to see.
The part
What it is
A stop that nobody is empowered to call is not available. Naming the authority in advance is what makes the checkpoint a real decision point.
The threshold matters as much as the name: what evidence would justify stopping.
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.