Glossary

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Rollator(also: Wheeled Walker, Rolling Walker)

A walking frame equipped with wheels, handbrakes, and typically a built-in seat, designed to provide stability and support for people with mobility difficulties. Unlike standard walkers that must be lifted with each step, rollators roll forward continuously, reducing the…

Route Learning(also: Route Familiarization)

The process by which a traveler — particularly a blind or low-vision person — acquires a mental representation of a specific path through an environment, including its turns, landmarks, distances, surface changes, and points of interest. Route learning is a core component of…

Row-Column Scanning(also: RCS, Grid Scanning, Two-Switch Scanning)

The most widely used single-switch selection method for augmentative and alternative communication (AAC) devices and on-screen keyboards. Options are arranged in a two-dimensional grid, and the interface sequentially highlights each row. When the user clicks their switch, the…

Runtime Accessibility(also: dynamic accessibility, on-demand accessibility adaptation)

Runtime accessibility refers to the ability to modify, adapt, or enhance the accessibility of a software application or digital environment while it is actively running, rather than through static design-time configurations or developer-authored presets. Traditional…