Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- BVI(also: Blind and Visually Impaired, BLV, Blind and Low Vision)
- A widely used abbreviation in accessibility and HCI research denoting "blind and visually impaired" — the inclusive category that covers people who are totally blind, legally blind, or have any form of low vision. Closely related variants include BLV ("blind and low vision"),…
- Binary Search Tree(also: BST)
- A node-based binary tree data structure in which each node has at most two children and satisfies the BST property: every value in the left subtree is less than the node's value, and every value in the right subtree is greater. This ordering enables efficient search, insertion,…
- Blind(also: Blindness)
- A visual impairment severe enough that a person cannot use vision as their primary means of perceiving information, typically defined legally in the United States as best-corrected visual acuity of 20/200 or worse in the better eye, or a visual field of 20 degrees or less.…
- Brute-Force Fallback(also: Reset Strategy, Exhaustive Recovery)
- A workaround strategy employed by assistive technology users when standard interaction methods fail, involving systematically trying all available options or completely restarting a task from a known good state. Brute-force fallbacks are particularly common among screen reader…
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