The statement · The horizon · Element
The arrival
What happens when the date comes.
The part
What it is
Three outcomes: reached, not reached, or no longer the right vision. Deciding in advance what each triggers is what prevents the date passing unremarked.
A reached vision requires a new one, and organisations are frequently unprepared for that because reaching it was not expected.
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.