Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- PDF Form(also: PDF Fillable Form, Interactive PDF Form, AcroForm)
- A PDF document that contains interactive form fields — text boxes, checkboxes, radio buttons, signatures, dropdowns — that users can fill in and submit electronically, rather than a static PDF meant only for reading. PDF forms are widely used for government applications,…
- Pa11y
- An open-source automated accessibility testing tool that runs from the command line and in continuous-integration pipelines. Pa11y can drive either axe-core or HTML CodeSniffer as its underlying rule engine, returning JSON-formatted results classified by severity (critical,…
- Perceived Accessibility(also: Subjective Accessibility, Accessibility-in-Use)
- Perceived accessibility refers to the subjective quality by which users experience the accessibility of a website or application, as opposed to its objective compliance with accessibility standards. Research has shown that guideline-conformant websites can still be perceived as…
- Personalized Accessibility(also: Personalized Web Accessibility, User-Tailored Accessibility)
- An approach to accessibility evaluation and design that considers the specific disability profile, capabilities, and needs of individual users rather than treating accessibility as a single universal property. Personalized accessibility evaluation tools filter WCAG success…
- Probabilistic Sampling(also: Random Sampling, Statistical Sampling)
- A sampling method in which every member of a population has a known, non-zero probability of being selected for the sample. In accessibility evaluation, probabilistic sampling of web pages allows auditors to make statistically valid generalisations about the overall…
- Proxy Feedback(also: Proxy User Testing, Surrogate Feedback)
- A user research method in which feedback on designs or prototypes is gathered from people who are close to the target users — such as carers, therapists, family members, or support workers — rather than from the users themselves. This approach is used when direct communication…
6 results.