Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- ARIA Live Region(also: Live Region, ARIA Live)
- An ARIA live region is a section of a web page marked with the aria-live attribute that announces dynamic content changes to assistive technologies without requiring user focus to move to the updated area. Live regions are essential for making real-time updates — such as status…
- ARIA Live Regions(also: Live Regions, aria-live)
- ARIA live regions are areas of a web page that dynamically update with new content and use WAI-ARIA attributes to communicate those changes to assistive technologies. The aria-live attribute (with values of off, polite, or assertive) tells screen readers how urgently to announce…
- Accessible Name(also: Accessible Label, Acc Name)
- The text string that assistive technologies such as screen readers use to identify and announce a user interface element. The accessible name is computed by browsers following the W3C's Accessible Name and Description Computation algorithm, which checks a priority-ordered…
- Accessible Role(also: ARIA Role, Role)
- An accessible role is a property that defines the type and expected behavior of a user interface element as exposed to assistive technologies through the accessibility tree. Roles communicate what an element is (e.g., button, link, heading, list, table, dialog) so that assistive…
- Accordion Interface(also: Accordion Widget, Collapsible Sections, Disclosure Widget)
- A user interface pattern that presents content in vertically stacked sections, each with a header that can be expanded or collapsed to show or hide the associated content. Accordions are particularly useful for accessibility because they allow users to navigate a hierarchical…
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