What gets reported · The inventory · Element

The maintenance

What keeping it running costs.

The part

What it is

Automated reports cost almost nothing until they break; manual ones cost time every period, and that time is rarely counted.

The total manual maintenance across an estate is frequently a full role that nobody has named.

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.