Qualifying · The deadline · Element
The window
How long the opportunity is available.
The part
What it is
Established by asking, since the person offering it usually knows and is rarely asked.
Where it is genuinely open-ended, the opportunity is probably not exceptional.
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.