Utilisation · The idle list · Element

The carrying cost

What the idle asset costs per period while it is not being used.

The part

What it is

Maintenance, licensing, insurance, space and the capital tied up all continue regardless of use.

The total across the list is usually the number that prompts action, because individually each item looks too small to bother with.

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.