Accessibility is a readiness standard

Accessibility critique asks whether people can perceive, operate, understand, and use the interface with assistive technology.
Not all accessibility testing can be automated.
Acceptance criteria should protect accessibility decisions from regression.

Quality lens

PerceivableCan users perceive the content?

OperableCan users operate the controls?

UnderstandableCan users understand content and behavior?

RobustCan assistive technologies interpret it reliably?