Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 310 of 333
- Verb Inflection (Sign Language Verb Inflection, Directional Verbs)
- In sign languages, verb inflection refers to the modification of a verb sign's movement path, speed, or direction to encode grammatical information such as subject, object, number, and aspect. Unlike …
- Verbatim Captioning (Verbatim Captions)
- A captioning approach that reproduces every spoken word exactly as uttered, including filler words, false starts, and repetitions. Regulators in many countries (e.g., the Canadian CRTC, the US FCC) em…
- Verbosity (Verbosity Level, Screen Reader Verbosity)
- Verbosity refers to the level of detail that an assistive technology — particularly a screen reader or voice browser — provides when announcing interface elements and content. Most screen readers allo…
- Verbosity Level (Verbosity Setting, Detail Level)
- A configurable setting that controls the amount of detail provided in text or audio descriptions of content, particularly for screen reader users and accessible data visualizations. Verbosity levels t…
- Verbosity Settings (Screen Reader Verbosity, Announcement Settings)
- Configuration options that control the amount of detail a screen reader or accessible application announces to the user. Verbosity settings allow users to adjust the balance between receiving comprehe…
- Verifiable Credential (VC)
- A cryptographically signed statement about a person, organisation, or object that a relying party can verify without contacting the issuer, following the W3C Verifiable Credentials Data Model. Verifia…
- Verification Mechanism (Verification System)
- A feature or process that allows users to confirm that a system has correctly understood and executed their intended action. In accessible calendar design, verification mechanisms are critical because…
- Verification loop (Feedback loop, Edit-verify cycle)
- An interaction pattern in which a user performs an action, receives feedback about the result, evaluates whether the outcome matches their intent, and decides whether to accept, undo, or refine the ac…
- Verified Answer Marker (verified solution marker, accepted answer marker)
- A visible indicator on a forum or Q&A platform signalling that a particular reply has been confirmed as correct or useful — for example, Stack Overflow's green tick, Apple Discussion Forums' top-ranke…
- Version segregation (Parallel versions, Separate accessible version)
- A design practice in which a separate, simplified, or modified version of a product, game, or platform is created specifically for disabled users rather than making the main version accessible. While …
- Vibe Coding
- A programming style, popularised by Andrej Karpathy in 2025, in which developers express high-level goals to an AI code assistant in natural language and let the AI handle implementation details, iter…
- Vibration Feedback (Haptic vibration, Vibrotactile feedback)
- The use of controlled vibration patterns — varying in duration, interval, intensity, and spatial location — to convey information to a user through the sense of touch. In assistive technology for blin…
- Vibro-Audio (Vibrotactile Audio, Vibro-Tactile)
- Vibro-audio is a multimodal interaction technique that combines vibration feedback from a device's built-in motor with auditory cues to convey information non-visually. On touchscreen devices, vibro-a…
- Vibro-Audio Map (VAM, Vibro-Audio Display)
- A multimodal map representation for touchscreen devices that combines vibrotactile feedback with synchronised audio cues to convey spatial information non-visually. Users explore the map by dragging a…
- Vibro-audio Interface (VAI)
- An assistive technology that combines vibration patterns and audio feedback to convey spatial and graphical information through touchscreen devices. Originally developed to make maps and diagrams acce…
- Vibromotor (Vibration Motor, Vibrotactile Actuator, ERM)
- A vibromotor is a small motor that produces vibration, commonly used in haptic feedback devices, smartphones, and wearable technology. The most common types are eccentric rotating mass (ERM) motors, w…
- Vibrotactile (Vibrotactile Feedback, Vibrotactile Stimulation)
- A form of tactile feedback that uses mechanical vibrations applied to the skin to convey information. Vibrotactile stimulation typically operates at frequencies between 10-500 Hz and is perceived thro…
- Vibrotactile Feedback (VTF, Vibration Feedback)
- A form of haptic feedback that communicates information through vibration patterns delivered to the skin, typically via small motors embedded in wearable devices such as armbands, gloves, or watches. …
- Vibrotactile Feedback (Vibrotactile, Vibrotactile Display, Tactile Vibration)
- A form of haptic feedback that uses vibration patterns to convey information through the sense of touch. In accessibility, vibrotactile feedback provides an alternative or complement to visual and aud…
- Vibrotactile feedback (Tactile vibration, Haptic vibration)
- A form of haptic feedback that uses mechanical vibrations applied to the skin to convey information through the sense of touch. Vibrotactile actuators can communicate directional cues, alerts, pattern…