Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 244 of 333
- Rhetorical Question (ASL) (ASL Rhetorical Question, RHQ)
- In American Sign Language, a grammatical construction in which the signer poses a question and then immediately answers it, used as a cohesive rhetorical device rather than as a genuine inquiry. ASL r…
- Rheumatoid Arthritis (RA)
- A chronic autoimmune disorder that causes inflammation, pain, stiffness, and swelling in the joints, particularly in the hands, wrists, and fingers. Rheumatoid arthritis can significantly affect a per…
- Rhythm Game (Music Game, Music/Rhythm Game)
- A genre of video game in which players must perform actions — such as pressing buttons, tapping a screen, or moving a controller — in time with music or a rhythmic pattern. Popular examples include Gu…
- Rhythm-Action Game (Rhythm Game, Music Rhythm Game, Beat-Matching Game)
- A genre of video game in which players must make timed inputs (button presses, key strokes, or physical movements) synchronised with musical beats or rhythmic patterns. Popular examples include Dance …
- Rich Internet Application (RIA, Dynamic Web Application)
- A web application that uses JavaScript and related technologies to provide interactive features, dynamic content updates, and sophisticated user interface widgets that approach the functionality of de…
- Rich Text (Formatted Text, Styled Text)
- Text content that includes visual formatting attributes beyond plain characters, such as font size, font family, color, bold, italic, underline, and other styling properties. On the web, rich text is …
- Rich internet application (RIA)
- A web application that uses client-side scripting (typically JavaScript) to provide dynamic, interactive functionality similar to desktop software, including features like drag-and-drop, real-time upd…
- Right to Education (RTE, Right to Education Act)
- Legal frameworks guaranteeing the right to free and compulsory education for all children, including children with disabilities. India's Right to Education Act (2009) mandates free education for all c…
- Right to Erasure (Right to be Forgotten, GDPR Article 17)
- A user right under the EU General Data Protection Regulation (Article 17) to have their personal data deleted by a data controller when certain conditions are met (e.g., data no longer needed, consent…
- Right to Repair
- A movement advocating for consumers' ability to repair, modify, and maintain their own devices and equipment, including access to diagnostic information, repair manuals, and replacement parts. For peo…
- Right-of-Way (Pedestrian Right-of-Way, ROW)
- Right-of-way refers to the legal right of a pedestrian, vehicle, or other entity to proceed with precedence over others in a specific area of public space. In accessibility, pedestrian right-of-way is…
- Rigid Scoping
- A voice navigation strategy that requires users to explicitly navigate through a hierarchical structure before issuing commands to specific targets. In rigid scoping, the user must first select a cont…
- Rigidity (Muscle Rigidity, Stiffness)
- Increased muscle tone causing stiffness and resistance to passive movement, commonly experienced in Parkinson's Disease and other neurological conditions. Unlike spasticity (which varies with movement…
- Risk-Free Exploration (Safe Exploration)
- Risk-free exploration is a design principle for making touchscreen interfaces accessible to blind users by enabling them to explore the screen surface without accidentally triggering interface actions…
- Robo-Identity (Robot Identity, Robot Persona)
- An emerging concept in human-robot interaction research referring to the identity or persona a robot takes on, as perceived and co-constructed by the people it interacts with. Robo-identity is not a f…
- Robodebt (Online Compliance Intervention)
- An automated debt-recovery scheme run by Services Australia (Centrelink) from 2016 to 2020, which used income-averaging algorithms to calculate alleged welfare overpayments and issue hundreds of thous…
- Robot-Assisted Feeding (Assistive Feeding Robot, Robotic Feeding System, RAF)
- A robotic system designed to help people with upper-limb motor impairments eat independently by automating the process of acquiring food from a plate and transferring it to the user's mouth. Robot-ass…
- Robotic Arm (Robot Arm, Assistive Robotic Arm, Manipulator Arm)
- A programmable mechanical device with jointed segments that can grasp, move, and manipulate objects, controlled through various input methods. In assistive technology contexts, robotic arms are used t…
- Robotic Guide Dog (Robot Guide Dog, Quadruped Guide Robot)
- A mobile robot — typically a quadruped platform — designed to provide navigation and obstacle-avoidance support for blind and low-vision users, filling a role analogous to that of a trained guide dog.…
- Robotic Social Attributes Scale (RoSAS, RoSAS-SF, Robotic Social Attributes Scale Short Form)
- A validated psychometric instrument developed by Carpinella et al. (2017) that measures how people perceive the social attributes of a robot along three subscales: Warmth (how likable, friendly, and c…