Glossary
Searchable terminology from accessibility, web standards, and related fields.
212 results found in Web Accessibility.
- Layout Table (Presentational Table)
- An HTML table element used to control the visual positioning of content on a web page rather than to present tabular data. Layout tables were a common web design technique before CSS became widely sup…
- Link Annotation (Link Augmentation, Link Labelling)
- The practice of adding supplementary information to hyperlinks to help users make informed navigation decisions before clicking. In web accessibility, link annotations may include the accessibility le…
- Link Context (Anchor Context, Link Surrounding Context)
- The text and information surrounding a hypertext link that helps users understand the link's purpose and destination. For sighted users, link context is often apparent from the visual layout — heading…
- Link Preview (Link Destination Preview, Link Target Preview)
- Information about the content or nature of a hypertext link's destination page, provided to users before they follow the link. Link previews help users make informed navigation decisions, reducing the…
- Link Purpose (Link Purpose (In Context), WCAG 2.4.4, Link Text)
- A WCAG 2.4.4 Level A success criterion requiring that the purpose of each link be determinable from the link text alone, or from the link text together with its programmatically determined context (su…
- Listenability (Auditory Readability, Speech-Output Quality)
- A web-accessibility usability metric that measures how appropriate a page's rendered text is when read aloud by a screen reader or voice browser — complementary to, and distinct from, raw WCAG conform…
- Logical Navigation (Structural Navigation, Semantic Navigation)
- A non-visual navigation strategy in which a user moves through a web page by its semantic structure — jumping between heading levels, ARIA landmarks, skip links, form fields, or other role-tagged regi…
- Markup Language
- A system of annotations or tags embedded within text that define the structure, presentation, or semantics of content without being displayed as visible text themselves. In web accessibility, markup l…
- MathML (Mathematical Markup Language)
- A W3C standard XML-based markup language for describing mathematical notation and its structure, enabling mathematical content to be rendered visually in web browsers and read aloud by screen readers.…
- Metadata Repository (Metadata Store, Metadata Registry)
- A server-side system that stores and serves descriptive data about other resources — in accessibility contexts, typically information about web pages or their elements that helps assistive technology …
- Microsoft Active Accessibility (MSAA, Active Accessibility)
- Microsoft Active Accessibility (MSAA) is an accessibility API introduced by Microsoft in 1997 that enables assistive technologies such as screen readers to interact with user interface elements in Win…
- Moodle
- An open-source learning management system (LMS) used worldwide by universities, schools, and workplaces for course delivery, assessment, and content hosting. Moodle supports accessibility through them…
- Multilingual Accessibility (Multilingual Web Accessibility)
- The practice of ensuring that web content and digital services are accessible to people with disabilities across multiple languages and cultural contexts. Multilingual accessibility sits at the inters…
- Navigability (Ease of Navigation, Web Navigability)
- The ease and efficiency with which a user can move through a web page, application, or document to reach their intended content. For accessibility practice, navigability is a primary determinant of wh…
- Non-Visual Skimming (Aural Skimming, Accessible Skimming)
- Non-visual skimming is the process of quickly surveying and extracting key information from text content without visual access, typically through auditory means such as screen readers. While sighted u…
- Non-Visual Web Access (Non-Visual Browsing, Nonvisual Web Access)
- The use of the web without relying on visual display, typically through screen readers, voice browsers, or refreshable braille displays that convert web content into speech or tactile output. Non-visu…
- Nonvisual Access (Non-Visual Access, Nonvisual Web Access, Non-Visual Web Access)
- The use of digital content, particularly web pages and applications, through means other than sight. Nonvisual access typically involves screen readers that convert text to speech, braille displays th…
- On Input (WCAG 3.2.2)
- WCAG 2.1 success criterion 3.2.2 (Level A) requires that changing the setting of any user interface component does not automatically cause a change of context (e.g., submitting a form, navigating to a…
- Online Accessibility Act (OAA, US Online Accessibility Act)
- A proposed US federal law (H.R. 1100, introduced in the 117th Congress) that would require consumer-facing websites and mobile apps of covered organisations to comply with Web Content Accessibility Gu…
- Online Braille (Web Braille, Digital Braille, Electronic Braille)
- Online Braille refers to Braille content that is generated, distributed, or accessed through the Internet or digital platforms, as opposed to traditional embossed paper Braille. This includes web-base…