Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Listenability(also: Auditory Readability, Speech-Output Quality)
- A web-accessibility usability metric that measures how appropriate a page's rendered text is when read aloud by a screen reader or voice browser — complementary to, and distinct from, raw WCAG conformance. Listenability penalises meaningless or placeholder ALT text (such as…
- Listening Rate(also: Comprehension Speed, Listening Speed)
- The maximum speed at which an individual can accurately comprehend spoken or synthesized speech, typically measured as a normalized value or in words per minute. Research shows that experienced screen reader users can achieve listening rates far exceeding typical human speech…
- Logical Navigation(also: Structural Navigation, Semantic Navigation)
- A non-visual navigation strategy in which a user moves through a web page by its semantic structure — jumping between heading levels, ARIA landmarks, skip links, form fields, or other role-tagged regions — rather than reading the content sequentially or sampling fragments by…
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