Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- ADA Compliance(also: Americans with Disabilities Act Compliance)
- Adherence to the requirements of the Americans with Disabilities Act (ADA), a 1990 US civil rights law that prohibits discrimination against people with disabilities in public accommodations, employment, transportation, telecommunications, and government services. ADA compliance…
- Accessibility Certification(also: Third-Party Accessibility Certification, Accessibility Accreditation)
- A formal assessment and endorsement of a website or digital product's accessibility by an independent third-party organisation, as distinct from voluntary self-declaration of conformance. Certification schemes exist in several European countries with different national…
- Accessibility Conformance Level(also: WCAG Conformance Level, Conformance Level)
- Accessibility conformance levels are the tiered ratings defined by the Web Content Accessibility Guidelines (WCAG) to indicate the degree to which web content meets accessibility success criteria. WCAG defines three levels: Level A (minimum, addressing the most critical…
- Accessibility Monitoring(also: Web Accessibility Monitoring, Accessibility Observatory)
- Accessibility monitoring is the ongoing process of tracking and measuring the accessibility level of websites or digital products over time. Because web content is frequently updated, changes can inadvertently introduce new accessibility barriers or degrade previously achieved…
- Accessibility Statement(also: Accessibility Page, Accessibility Declaration)
- A public declaration on a website or application that describes its accessibility features, known limitations, conformance level with accessibility standards (such as WCAG), contact information for reporting barriers, and the organisation's commitment to accessibility.…
- Accessibility conformance report(also: ACR, VPAT, Voluntary Product Accessibility Template)
- A document that records the degree to which a product or service meets accessibility standards such as WCAG, Section 508, or EN 301 549. In enterprise settings, conformance reports are a primary deliverable of the accessibility testing process, used to communicate compliance…
- EN 301 549(also: European accessibility standard)
- The European standard for accessibility requirements of ICT products and services, harmonized under the European Accessibility Act. EN 301 549 covers web content, software, hardware, and documentation, incorporating WCAG 2.1 Level AA for web and non-web documents while adding…
- VPAT(also: Voluntary Product Accessibility Template, Accessibility Conformance Report, ACR)
- A standardized document in which vendors report how well their product or service conforms to accessibility standards such as WCAG, Section 508, and EN 301 549. Originally created by the Information Technology Industry Council (ITI), VPATs help procurement teams assess the…
- WCAG Conformance Levels(also: WCAG Levels, Level A, Level AA)
- WCAG defines three levels of conformance that indicate the degree to which web content meets accessibility requirements. Level A is the minimum, addressing the most critical barriers that would completely prevent some users from accessing content. Level AA is the target for most…
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