Whether it works · The decision · Element

The action

What was done.

The part

What it is

Kept, simplified, or removed. Simplification is underused: a personalisation with three signals and one doing the work can be reduced.

Removal frees maintenance capacity and reduces the untested surface, both of which are worth more than they appear.

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.