Decision points · The date · Element
The diarising
Whether the date actually arrives.
The part
What it is
In a calendar, with the people who need to be there, booked when the plan is made.
A decision point not booked is a decision point that passes unnoticed, which is the most common failure of the whole mechanism.
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.