Ownership · The custodian · Element
The escalation
What happens when they disagree.
The part
What it is
Usually about whether a change is worth the technical effort, and it needs a route rather than a negotiation.
The route should be short, since these disputes block practical work.
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.