Production · The constraint · Element

The queues

How long work waits at each step.

The part

What it is

Measured as the time between arriving at a step and leaving it, not as the time somebody spent on it. The gap between those two is the whole finding.

A week of measurement is usually enough. The pattern is rarely subtle.

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.