Glossary

OpenScouter Glossary

Concise, source-grounded definitions of the terms we use across behavioural research, accessibility, and B2B UX. Written so a human reader, an LLM, or a journalist can quote the same canonical line.

Behavioural User Research: Behavioural user research observes what people actually do during a session, rather than what they say they did afterwards.
European Accessibility Act: EU Directive 2019/882, the European Accessibility Act, requires in-scope digital services placed on the EU market to meet functional accessibility requirements from 28 June 2025.
Consumer Duty Outcome 3: Outcome 3 of the FCA Consumer Duty requires firms to evidence that consumer communications enable retail customers to make effective, timely and properly informed decisions.
Are A/B Tests Reliable for Accessibility: A/B tests are reliable for confirming hypotheses that already work, but unreliable for discovering whether an interface is accessible, because most A/B variants do not isolate the accessibility variable.
Cognitive Accessibility: Cognitive accessibility is the practice of designing interfaces that work for people with differences in memory, attention, processing speed and executive function, including the neurodivergent population.
Curb-Cut Effect: The curb-cut effect describes how designs created for people with disabilities end up benefiting everyone, named after the urban-design history of kerb ramps.
Neurodivergent User: A neurodivergent user is a person whose cognitive function differs meaningfully from neurotypical norms, including ADHD, autism, dyslexia, dyspraxia, dyscalculia, and Tourette syndrome.
How Many People Are Neurodivergent: Approximately 1 in 5 people in the UK is neurodivergent, including ADHD, autism, dyslexia, dyspraxia, dyscalculia and Tourette syndrome. Global prevalence is broadly similar.
WCAG 2.2: WCAG 2.2 is the W3C Web Content Accessibility Guidelines version 2.2, published as a W3C Recommendation in 2023, adding nine new success criteria over WCAG 2.1.
Vulnerable Customer (FCA Definition): Under FCA Finalised Guidance FG21/1, a vulnerable customer is someone who, due to their personal circumstances, is especially susceptible to harm when a firm is not acting with appropriate levels of care.