The review · The exceptions · Element

The explanation

Why each exception occurred.

The part

What it is

Established rather than proposed. A plausible explanation offered in the meeting becomes the accepted cause without anyone checking.

Where the cause is unknown, saying so is better than accepting the first available story.

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.