Default Value and Implicit Value for Role: Many states and properties have default values. Occasionally, the default value when used on a given role should be different from the usual default. Roles that require a state or property to have a non-standard default value indicate this in the "...
4.1.2: MUST: Name, Role, Value WCAG Success Criteria [WCAG 2.0 (A)] 4.1.2: MUST: Name, Role, Value When developers do not use attributes defined in the WAI-ARIA 1.1 W3C Recommendation, they do not properly convey user interface behaviors and structural information to assistive technologies...
Certain ARIA roles must be contained by particular parents WCAG 2.1 (A) WCAG 2.0 (A) blind deafblind mobility critical Axe Core 4.8 ARIA roles used must conform to valid values WCAG 2.1 (A) WCAG 2.0 (A) blind deafblind mobility critical Axe Core 4.8 ARIA attributes must conform ...
The role taxonomy is designed in part to support the common roles found in platform accessibility APIs. Reference to roles found in this taxonomy by dynamic web content may be used to support interoperability with assistive technologies. The schema to support this standard has been designed to be ...
where the value is one ofthe ARIA roles from section 5.4. When the role value is that of an interactive element, the author must make sure the behavior of the underlying element matches the expected interaction. E.g. a button must be focusable and operable with the enter key or spacebar...