Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Heuristic Evaluation(also: Expert Review, Heuristic Review)
- A usability inspection method in which a small group of expert reviewers evaluate a user interface against a set of established design principles or heuristics. Originally developed by Jakob Nielsen, the method is widely used in accessibility assessment where experts review…
- Interaction Logging(also: Event Logging, User Interaction Logging, UI Event Logging)
- The automated capture and recording of user interface events — such as clicks, keystrokes, focus changes, touch gestures, and scrolling — during a person's interaction with a digital system. In accessibility research and evaluation, interaction logging is valuable for…
- SUMI(also: Software Usability Measurement Inventory)
- A standardised questionnaire-based method for measuring software usability from the end user perspective. SUMI assesses five dimensions: efficiency, affect (user satisfaction), helpfulness, control, and learnability. In accessibility contexts, SUMI can be adapted alongside…
- User Testing(also: User Evaluation, End-User Testing)
- A research method in which representative users perform tasks with a product or system while evaluators observe, record, and analyze their behavior. In accessibility contexts, user testing with people with disabilities is considered essential because it reveals real-world…
- WCAG-EM(also: Website Accessibility Conformance Evaluation Methodology)
- A structured methodology published by the W3C for evaluating how well a website conforms to the Web Content Accessibility Guidelines (WCAG). WCAG-EM defines a five-step process: defining the evaluation scope, exploring the website, selecting a representative sample of pages,…
- WebAIM Million(also: WebAIM Million Report, The WebAIM Million)
- An annual accessibility evaluation study conducted by WebAIM (Web Accessibility In Mind) that automatically tests the home pages of the top one million websites against WCAG 2 success criteria. The study has become a key benchmark for measuring the state of web accessibility…
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