Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 238 of 333
- Reassurance Robot
- A term coined by Grace Barkhuff (CHI 2026) to describe generative AI systems — such as ChatGPT — that, by default, provide reassurance, confession-hearing, and decision-making on demand, thereby accom…
- Reassurance Seeking (Reassurance-Seeking Behavior)
- A compulsive behavior in OCD where individuals repeatedly seek confirmation from others (or from technology, such as internet searches) that feared outcomes have not occurred or will not occur. Reassu…
- Receptive and Expressive Skills (Receptive Signing, Expressive Signing, Receptive Skills, Expressive Skills)
- In language learning, receptive skills are the ability to understand a language — reading and listening in spoken languages, watching and comprehending signing in sign languages — while expressive ski…
- Recipe Progress Tracking (Cooking Progress Monitoring)
- The specific application of procedural task tracking to cooking, where a system monitors which recipe steps have been completed and what remains. For BLV cooks, recipe progress tracking addresses a cr…
- Reciprocity (Conversational Reciprocity, Social Reciprocity)
- The back-and-forth exchange of information, questions, and responses that characterizes natural conversation. Reciprocity includes components like asking questions, responding appropriately, giving fe…
- Recognition-Based Authentication (Cognometric Authentication)
- A type of graphical authentication where users authenticate by recognizing and selecting previously registered images from a set that includes decoy images. Unlike recall-based systems that require us…
- Recreational Accessibility (Leisure Accessibility)
- The design and provision of recreational activities, spaces, and experiences that are inclusive of people with disabilities. Recreational accessibility extends beyond basic physical access to encompas…
- Recreational Exploration (Wandering exploration, Exploratory navigation, Open-ended exploration)
- Movement through an environment driven by interest, curiosity, or enjoyment rather than by a fixed destination — for example wandering a museum, browsing a shopping mall, or exploring a neighbourhood.…
- Recurrent Neural Network (RNN)
- A recurrent neural network (RNN) is a type of artificial neural network designed to process sequential data by maintaining an internal state (memory) that captures information from previous inputs in …
- Red Teaming (Generative Red-Teaming, AI Red Teaming)
- A structured evaluation practice in which an adversarial team probes a system — traditionally a network or application, increasingly an AI model or conversational agent — with realistic attack scenari…
- Red-teaming (Red team testing)
- A structured adversarial-testing practice in which a dedicated team deliberately attempts to break, manipulate, or provoke harmful outputs from a system — originally from military strategy, now widely…
- Redundancy Principle
- A principle from the Cognitive Theory of Multimedia Learning stating that people learn better from graphics and narration than from graphics, narration, and on-screen text presenting the same words, b…
- Redundant Encoding (Redundant Coding, Multi-Channel Encoding)
- A design principle that communicates information through multiple visual channels simultaneously — such as colour plus shape, pattern, text label, or position — so that no single channel is required f…
- Redundant Input (Redundant Input Channels, Multimodal Redundancy)
- A design approach in which a user interface accepts the same command through more than one input channel — for example, voice and gesture, keyboard and pointer, or speech and switch — so that users ca…
- Reference Sonification (Audio reference tone, Origin tone)
- A sonification design pattern in which a fixed, recognisable audio tone represents a known landmark - typically the origin of a coordinate system or another anchor point - and can be re-played on dema…
- Referential Drift
- Referential drift is a failure mode in AI-generated sign language where spatial loci — the established positions in signing space used to refer to people, objects, or locations — shift or are not main…
- Reflection-in-Action (Reflection-on-Action)
- A concept from Donald Schön's theory of reflective practice (The Reflective Practitioner, 1983) describing how skilled practitioners adjust their approach in the moment, based on tacit knowledge and i…
- Reflexive Ethnography
- Reflexive ethnography is an approach to ethnographic research in which the researcher explicitly documents and analyses how their own identity, assumptions, relationships and shifting position in the …
- Reflexive Thematic Analysis (RTA)
- A qualitative data analysis method developed by Braun and Clarke that involves open-coding transcripts, identifying patterns, and organizing findings into themes through iterative refinement. Reflexiv…
- Reflexive thematic analysis (RTA)
- A qualitative research method developed by Braun and Clarke that involves the researcher actively and reflexively generating themes from data, rather than treating themes as pre-existing entities to b…