Seasonal moments · The lead times · Element

The start date

When work has to begin.

The part

What it is

Calculated backwards from the moment using measured production times rather than estimated ones.

For anything requiring an expert contribution or external production, add substantially.

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.