Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Preference Customization(also: User Preference Configuration, Personalization Settings)
- The ability for users, particularly those using assistive technologies, to configure how they receive and interact with digital content based on their individual needs, preferences, and context. In accessibility, preference customization goes beyond basic assistive technology…
- Presumed Competence(also: Least Dangerous Assumption)
- The principle that all individuals should be assumed capable and intelligent regardless of whether their abilities are displayed in ways that conform to societal norms. Advocated particularly by nonspeaking neurodivergent individuals and those with intellectual disabilities,…
- Privacy by Design(also: PbD)
- A framework that embeds privacy protections into the design and architecture of systems and business practices from the outset, rather than adding them as afterthoughts. In the context of visual assistance technologies, privacy by design encompasses on-device processing, data…
- Procedural Accessibility
- An aspect of web accessibility that addresses the consistency and clarity of interaction sequences and workflows within digital systems. Procedural accessibility ensures that similar services follow the same patterns of interaction — for example, all online purchasing processes…
- Psychological Accessibility
- A dimension of accessibility concerned with whether users find a product or service useful, appropriate, and satisfying, beyond being merely technically operable. Psychological accessibility addresses factors such as user confidence, willingness to engage with technology, and…
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