The basis

What the frequency was set from.

The part

What it is

Capacity, audience expectation or channel convention. Only the first is a constraint; the others are preferences.

A frequency set from ambition rather than capacity is a frequency that will be missed.

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.

Set from
Capacity, audience expectation or convention.
Choice shared type
Production time
What one piece takes, which sets the ceiling.
Duration shared type
Achievable
Whether capacity actually supports it.
Choice shared type