Capacity to act · The reserve · Element
The protection
What stops it being allocated.
The part
What it is
A named owner who can decline requests, and a rule that it is not available for planned work however good the case.
Without both, it is allocated by the second quarter every year.
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.