Glossary

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Panning(also: Screen Panning, Viewport Panning)

The act of moving the visible area of a screen magnifier or viewport across a webpage or application to view content that extends beyond the currently displayed portion. For screen-magnifier users, panning is a fundamental but often arduous interaction technique, requiring…

Perceptual Guidance

An instructional technique that directs a user’s attention to specific perceptual features of a target — most commonly color and on-screen location — to help them detect or disambiguate it. In accessibility contexts, perceptual guidance is used in screen-reader cues, tutorial…

Pie Menu(also: Radial Menu, Circular Menu)

A pie menu is a circular or ring-shaped menu interface in which command options are arranged radially around a central point, allowing selection by moving the cursor or making a directional gesture toward the desired item. Unlike linear drop-down menus, pie menus leverage…

Playhead(also: Play Head, Cursor Position)

The visual indicator on a video or audio timeline that shows the current playback position, typically a vertical line or triangle marker that moves in time with the media. Playheads are a core primitive of timeline-based media tools (video editors, DAWs, subtitle authoring…

Preset(also: Default Configuration, Template Setting)

A predefined combination of settings or options that can be applied as a group, reducing the number of individual decisions a user needs to make. In accessibility interfaces, presets help users with cognitive disabilities by offering curated starting points rather than requiring…

Progress Bar(also: Progress Indicator)

A UI element that visually communicates the proportion of a task, process, or timeline that has been completed. In media players it indicates playback position; in forms and wizards it signals completion across steps; in file transfers it shows elapsed progress. Accessibility…

Progress Tracking(also: Progress Indication, Progress Visualization)

The use of visual or auditory indicators to show how far a user has advanced through a task, document, or process. In cognitive accessibility, progress tracking serves multiple functions: it provides a sense of accomplishment that motivates continued engagement, reduces anxiety…

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