Year Wheel · Fixed points · Component
The immovable
The dates that genuinely cannot move — a short list, and shorter than the one most organisations carry.
The deliverable
What it is
Statutory filings, regulatory deadlines, contractual dates and a small number of external events. Everything else is negotiable at some price.
The list is worth writing because it is short, and because everything not on it becomes available as planning flexibility.
One level in
What it is made of
Each element is a constituent part of the component. Follow one to see the attributes it carries.
Where no authority can be named for a date, the date is probably not fixed.