Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Understandability(also: Understandable, Comprehensibility)
- The quality of information or interface elements being cognitively accessible — meaning a user can not only perceive the content but also internalise its meaning and know how to act on it. Understandability is one of the four principles of WCAG 2.0, requiring that information…
- Universe of One(also: Universe-of-One, Personalized Prompting)
- A design approach in assistive technology where content, prompts, and guidance are tailored to each individual user rather than providing generic or standardized instructions. The concept is particularly important for people with cognitive impairments, who often struggle with…
- Useful Field of View(also: UFOV, Functional Visual Field)
- The useful field of view (UFOV) is the area of the visual field from which a person can extract information in a single glance without moving their eyes or head. Unlike the anatomical visual field, the UFOV is a measure of functional vision that depends on cognitive processing…
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