Glossary
Searchable terminology from accessibility, web standards, and related fields.
30 results found in Usability.
- Reaching Time (Navigation Time, Time to Target)
- A usability metric measuring the time required for a user to navigate to a specific element on a web page. For blind users employing screen readers, reaching time is a key indicator of page navigabili…
- Target Selection (Target Acquisition, Pointing)
- The fundamental interaction task of moving a cursor or pointer to a specific location on screen and confirming selection, such as clicking a button or link. Target selection difficulty is affected by …
- Usability Engineering
- A systematic, structured approach to designing and evaluating user interfaces that applies engineering principles to usability. Usability engineering involves defining measurable usability goals, cond…
- Usability Heuristics (Nielsen's Heuristics, Nielsen Heuristics, 10 Usability Heuristics)
- A set of ten general principles for user interface design developed by Jakob Nielsen (originally with Rolf Molich in 1990, refined in 1994): visibility of system status, match between system and the r…
- Usable Accessibility
- Usable accessibility is the principle that meeting technical accessibility standards (such as WCAG compliance) is necessary but not sufficient for ensuring that people with disabilities can effectivel…
- User Engagement Scale (UES, UES-SF)
- A validated self-report questionnaire for measuring user engagement with digital systems across dimensions including focused attention, perceived usability, aesthetic appeal, and reward. Developed by …
- User Experience Questionnaire (UEQ, UEQ-S, Short UEQ)
- A standardised self-report instrument, developed by Schrepp and colleagues, that captures a user's subjective impression of a product across dimensions such as attractiveness, efficiency, perspicuity,…
- User Research (UX Research, Usability Research)
- The systematic study of users and their needs, behaviours, and experiences to inform the design and development of products and services. User research methods include interviews, surveys, focus group…
- Voice Usability (Auditory Usability, Non-Visual Web Usability)
- The degree to which a web page, application, or document is usable when accessed through a voice browser or screen reader — the audio-first counterpart to traditional visual usability. Voice usability…
- Wizard-of-Oz (WOZ, Wizard of Oz Method, WOZ Study)
- A research methodology where participants interact with what they believe is an autonomous system, but a human "wizard" is secretly operating it behind the scenes. Named after the 1939 film, this tech…