Accessibility · The testing · Element
The automated
What tooling checks.
The part
What it is
Contrast, missing labels, structural errors and some interaction problems. Run in the build so that regressions do not ship.
Its value is preventing recurrence rather than finding everything.
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.