Glossary

Searchable terminology from accessibility, web standards, and related fields.

6660 terms — page 40 of 333

Barrier Pointing (Edge-Based Pointing)
An interaction technique for touch screens that uses the physical edges of a device as barriers to assist with target acquisition. When a target is placed near a screen edge, users can slide their fin…
Barrier Walkthrough (BW Method)
The Barrier Walkthrough is a structured expert evaluation method for assessing web accessibility in which evaluators systematically examine a website against a predefined set of accessibility barriers…
Barrier Walkthrough (Structured Walkthrough)
A systematic accessibility evaluation method that guides evaluators through the process of identifying barriers that people with disabilities may encounter on a website. Unlike a standard conformance …
Barrier Walkthrough Method (BW Method, Barrier Walkthrough)
An accessibility evaluation method developed by Giorgio Brajnik that groups Web Content Accessibility Guidelines (WCAG) success criteria by user categories such as blind users, people with low vision,…
Barrier-Free Housing (Accessible Housing, Barrierefrei)
Housing designed or modified to be usable by people with disabilities, typically addressing physical access features such as step-free entry, wide doorways, accessible bathrooms, and adjustable fixtur…
Bayesian Network (Bayes Network, Belief Network, Probabilistic Graphical Model)
A statistical model that represents probabilistic relationships among variables using a directed graph structure. In accessibility and assistive technology applications, Bayesian networks are used for…
Be My AI
An AI-powered feature within the Be My Eyes app that uses GPT-4o to provide on-demand image descriptions for blind and low vision users. Users can take a photo or upload an image and receive a detaile…
Be My Eyes
A mobile application that connects blind and low-vision users with sighted volunteers or AI-powered visual assistance for help with visual tasks. Originally launched in 2015 as a crowdsourced human-to…
Beauty Accessibility (Accessible Beauty, Inclusive Beauty)
The design and practice of making beauty and personal grooming products, tools, services, and information accessible to people with disabilities. Beauty accessibility encompasses tactile and braille p…
Becker Muscular Dystrophy (BMD)
A genetic neuromuscular disorder caused by mutations in the dystrophin gene on the X chromosome, resulting in progressive muscle weakness and wasting. Becker Muscular Dystrophy is similar to Duchenne …
Beep Baseball (Beepball)
An adapted version of baseball designed for players who are blind or visually impaired. The game uses an oversized softball containing electronic beepers that emit sound, and bases that buzz when acti…
Beepball (Beep Baseball, Blind Baseball)
An adaptive version of baseball designed for players who are blind or visually impaired. The game uses a softball modified with a sound sensor that emits a beeping sound, and bases that buzz when acti…
Before-After Comparison (Before and After Feedback, Edit Comparison)
A feedback mechanism that describes the differences between an image or content before and after an edit has been applied, helping users understand the impact of their changes. For blind users editing…
Behavior Change (Behavior Modification, Behavioral Intervention)
Behavior change refers to the systematic process of modifying specific behaviors through structured intervention techniques. In accessibility and disability contexts, behavior change strategies are us…
Behavior Rehearsal (Behavioral Rehearsal)
Behavior rehearsal is a structured practice technique, introduced by Brownsmith in behavioural psychology and widely used in social-skills training, in which a learner repeatedly practises a target be…
Behavioral Intervention (Behavior Intervention, Applied Behavior Analysis, ABA)
A systematic approach to understanding and modifying behavior, most commonly applied to support children with autism, ADHD, and other neurodevelopmental conditions. Behavioral intervention uses eviden…
Behaviour-Driven Development (BDD, Behavior-Driven Development)
A software development methodology that extends Test-Driven Development by writing test cases as human-readable scenarios in natural language, describing expected system behaviour from the user's pers…
Behavioural and Psychological Symptoms of Dementia (BPSD, Behavioural Disturbance, Neuropsychiatric Symptoms)
A range of non-cognitive symptoms and behaviours associated with dementia, including agitation, aggression, wandering, repetitive behaviours, sleep disturbances, anxiety, depression, delusions, and ha…
Benchmark dataset (Evaluation dataset, Test benchmark)
A standardized dataset used to evaluate and compare the performance of AI models, algorithms, or systems against established baselines. In accessibility, the absence of benchmark datasets that include…
Bespoke Accessibility (Personalised Accessibility, Individualized Access)
An approach to accessibility that recognises each person's access needs are unique and may conflict with those of others, requiring individually tailored rather than one-size-fits-all solutions. Bespo…