The cadence · The floor · Element
The drop order
What is given up first when capacity is short.
The part
What it is
Decided in advance so that the reduction is orderly rather than whatever happened not to get done.
The order should follow the job mapping: the formats serving the least critical gaps go first.
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.