Fixed points · The assumed-fixed · Element
The test
What happens if it moves.
The part
What it is
Moved once, deliberately, and the consequences observed. Usually less than expected.
Where nothing happens, permanent flexibility has been gained for the cost of one year’s inconvenience.
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.
The other elements in the assumed-fixed
The candidates
Which dates have no external authority behind them.
LearnThe dependencies
What has grown up around the date.
Learn