Integrity · The gap log · Element
Movement
How the gap has changed since it was first recorded.
The part
What it is
Gaps that have been open for three years without movement are not being closed, whatever their status says. The column exists to make that visible.
Movement is also the only real evidence that the log is being used rather than maintained.
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.