The hours

How much production time actually exists.

The part

What it is

Realistically rather than nominally: someone with content as half their job has considerably less than half a week for it.

Including the expert contributors, whose available time is the binding constraint for specialist formats.

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.

Contributor
Who has production time.
Person shared type
Hours per period
Realistically available, not nominally allocated.
Duration shared type
Of their role
What share of their job this is.
Percentage shared type