Glossary

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Accelerated Speech(also: Time-Compressed Speech, Speed-Up Speech)

Audio output played at faster than normal speaking rate, commonly used by people with visual impairments when interacting with screen readers and other audio-based assistive technologies. Research shows that experienced screen reader users can comprehend speech at up to 500…

Accessible Comics(also: Digital Comics Accessibility, Comic Book Accessibility)

Approaches and technologies for making comic books and graphic novels accessible to people with visual impairments. Unlike plain text, comics combine visual art, panel layouts, speech balloons, and onomatopoeia that require special consideration for non-visual access. Accessible…

Accessible Graphics(also: Accessible Images, Non-Visual Graphics)

Visual information such as charts, diagrams, maps, and illustrations that has been made perceivable and understandable to people with visual impairments through alternative formats. These formats include tactile graphics (raised line drawings, swell paper, 3D-printed models),…

Achromatopsia(also: Rod Monochromacy, Total Color Blindness, Complete Achromatopsia)

A rare inherited vision condition in which a person has little or no ability to perceive color, seeing the world primarily in shades of grey. People with achromatopsia typically also experience light sensitivity (photophobia), reduced visual acuity, and involuntary eye movements…

Adaptive Typography(also: Context-Aware Typography, Dynamic Typography)

The practice of adjusting text presentation - font size, weight, line spacing, character spacing, contrast, and colour - automatically or semi-automatically in response to the user's current needs and context. Adaptive typography goes beyond static accessibility settings by…

Anomalous Trichromacy(also: Anomalous Trichromatic Vision)

A category of colour vision deficiency where all three types of cone cells are present but one type has a shifted sensitivity range, resulting in altered colour perception that is less severe than dichromacy. The three forms are protanomaly (shifted red cones), deuteranomaly…

Art Accessibility(also: Artwork Accessibility, Cultural Accessibility)

The practice of making visual art, museums, galleries, and cultural experiences accessible to people with disabilities. Art accessibility encompasses a range of approaches including tactile reproductions, audio descriptions, augmented reality overlays, accessible exhibition…

Audio-First Design(also: Audio-Centric Design, Sound-First Design)

A design approach that prioritizes audio as the primary interaction modality rather than treating it as a secondary alternative to visual interfaces. Audio-first design is particularly relevant for creating accessible educational content and AI tools for people with vision…

Auditory Graph(also: Audible Graph, Sonified Chart)

A non-visual representation of data that uses sound properties such as pitch, volume, duration, and timbre to convey the values and patterns typically shown in visual charts and graphs. Auditory graphs are an important assistive approach for making data accessible to people who…

Auto-Aim(also: Lock-On Targeting, Target Assist, Aim Assist)

An accessibility feature in games and virtual environments that helps users locate and track targets without requiring precise manual aiming. Auto-aim typically scans the environment for objects of interest and automatically adjusts the user's view or cursor to face or track the…

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