Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 100 of 333
- Disambiguation (Target Disambiguation, Touch Disambiguation)
- In accessible interface design, disambiguation is the process of resolving ambiguity when a user's input could correspond to more than one interactive target. This commonly occurs on touchscreens wher…
- Disclaimer (Content Disclaimer, Health Disclaimer)
- A statement accompanying content that clarifies its limitations, purpose, or the credentials of its creator. In health and disability content on social media, disclaimers typically indicate that conte…
- Disclosure of Disability (Disability Disclosure, Self-Disclosure)
- The decision by a person with a disability to reveal their disability status to others, whether in educational, professional, or social settings. Disclosure is a complex and deeply personal decision i…
- Discourse Analysis (Critical Discourse Analysis, CDA)
- A research methodology that examines how language constructs meaning, power relations, identities, and social realities. Critical discourse analysis specifically investigates how language in texts, me…
- Discoverability (Feature Discoverability)
- The degree to which a user can find and become aware of a feature, setting, or capability within a system. In accessibility, discoverability is a critical challenge because users who could benefit fro…
- Discreet AAC (Discreet Assistive Communication, Wearable AAC)
- Augmentative and alternative communication devices designed to be socially unobtrusive and visually inconspicuous, in contrast to traditional tablet-based AAC systems that are physically prominent and…
- Discrete Specification (Discrete Positioning, Grid-Based Positioning)
- In cursor control interfaces, a positioning method where the user selects from a finite set of predefined locations to move the cursor to an approximate position quickly. Examples include grid-based s…
- Discrete Trial Training (DTT, Discrete Trial Teaching, Discrete Trial Instruction)
- A structured teaching method used primarily with autistic children in which skills are broken down into small, distinct components and taught through repeated, controlled trials. Each trial follows a …
- Discrimination Ellipse (Discrimination Ellipsoid, MacAdam Ellipse)
- A region in a color space surrounding a given color within which other colors cannot be distinguished from it by an observer. In two dimensions this region forms an ellipse; in three-dimensional color…
- Discriminative Ability (Discriminative ability of a metric, Discriminability)
- In accessibility research methodology, the property of an evaluation metric to reveal statistically significant differences between stimuli that are known to differ along the dimension being measured.…
- Disenfranchised Grief
- Disenfranchised grief, a concept developed by Kenneth Doka, describes the experience of people who 'incur a loss that is not, or cannot be, openly acknowledged, publicly mourned or socially supported'…
- Disfluency (Dysfluency, Speech Disfluency)
- Any interruption or break in the normal flow of speech, including repetitions, prolongations, blocks, interjections (such as "um" or "uh"), and revisions. While all speakers experience occasional disf…
- Disordered Speech (Pathological Speech, Atypical Speech)
- Speech that differs from typical patterns due to motor, neurological, structural, or developmental conditions. Disordered speech encompasses conditions like dysarthria, apraxia, stuttering, and speech…
- Displayless Interface (Screenless Interface, Eyes-Free Interface)
- A displayless interface is a computer interaction system that operates without a visual display, relying instead on audio, speech, haptic, or other non-visual output modalities. These interfaces serve…
- Disruptiveness index (D index, Disruption index, CD index)
- A bibliometric measure that quantifies the degree to which a scientific paper disrupts or consolidates existing knowledge. Calculated from citation patterns, it ranges from -1 (fully consolidating, wh…
- Distance Education (Distance Learning, Long Distance Education, Remote Education)
- A mode of education in which learners and instructors are physically separated, with teaching and learning mediated through communication technologies rather than face-to-face contact. Distance educat…
- Distant speech recognition (Far-field ASR, Far-field speech recognition)
- Automatic speech recognition performed on audio captured by microphones positioned at a distance from the speaker (typically 2+ meters), rather than close-talk input from headsets or handheld devices.…
- Distractibility (Attentional Distractibility, Susceptibility to Distraction)
- A cognitive characteristic in which a person has difficulty maintaining focus on a task due to sensitivity to irrelevant stimuli in their environment. Distractibility is a feature of many conditions i…
- Distraction Blocker (Focus app, Website blocker, Digital self-control tool, DSCT)
- A category of digital well-being software designed to restrict access to distracting applications, websites, or notifications so that users can sustain focus on work or study. Distraction blockers ran…
- Distraction Control (Distraction Filtering, Focus Mode)
- Features or tools that help users suppress distracting content on web pages to maintain focus on their primary task. Distraction control ranges from manual tools (like Apple's Distraction Control in S…