Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Procedural task analysis(also: Task decomposition, Step-by-step analysis)
- A method of breaking down complex tasks into sequential, discrete steps to understand user workflows and identify points of difficulty. In accessibility contexts, procedural task analysis reveals where users with cognitive, sensory, or motor impairments encounter barriers — such…
- Progressive Disclosure(also: Staged Disclosure, Layered Interface)
- An interaction design pattern that initially presents only the most essential options or information, revealing additional complexity progressively as users need or request it. Progressive disclosure reduces cognitive load and visual clutter by avoiding overwhelming users with…
- Psychometric Evaluation(also: Psychometric Validation, Psychometric Analysis)
- The process of assessing whether a measurement instrument (such as a questionnaire or survey) possesses desirable statistical properties including validity, reliability, and consistency. In accessibility and usability research, psychometric evaluation is used to determine…
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