Glossary
Searchable terminology from accessibility, web standards, and related fields.
178 results found in web accessibility.
- Reaching Time (Navigation Time, Time to Target)
- A usability metric measuring the time required for a user to navigate to a specific element on a web page. For blind users employing screen readers, reaching time is a key indicator of page navigabili…
- Reading Order (Logical Reading Order, Narration Order)
- The sequence in which content is presented to assistive technology users, particularly screen reader users, when navigating a document or web page. For sighted users, the visual layout of a document (…
- Relative Font Sizing (Relative Units, Scalable Typography, Flexible Font Sizes)
- The practice of specifying text sizes using relative units (such as em, rem, or percentages) rather than absolute units (such as pixels or points), allowing text to scale when users adjust their brows…
- Renarration (Content Renarration, Web Renarration)
- The process of re-telling, re-presenting, or re-styling existing web content to make it accessible to new audiences who face barriers the original content was not designed to address. Renarration goes…
- Rich Internet Application (RIA, Dynamic Web Application)
- A web application that uses JavaScript and related technologies to provide interactive features, dynamic content updates, and sophisticated user interface widgets that approach the functionality of de…
- Rich internet application (RIA)
- A web application that uses client-side scripting (typically JavaScript) to provide dynamic, interactive functionality similar to desktop software, including features like drag-and-drop, real-time upd…
- Screen Reader Compatibility (Screen Reader Support, Screen Reader Accessible)
- The degree to which a digital interface, website, application, or document can be effectively used with screen reader software. Screen reader compatibility requires proper semantic HTML structure, mea…
- Section 508 (508 Compliance, Rehabilitation Act Section 508)
- A provision of the United States Rehabilitation Act that requires federal agencies to make their electronic and information technology accessible to people with disabilities. Updated in 2017 (the "Sec…
- Semantic Accessibility Violation (Semantic A11y Violation)
- An accessibility issue where HTML elements or attributes are technically present but fail to convey meaningful information to users with disabilities. Examples include alt text set to generic values l…
- Semantic Model (Semantic Tree, Semantic Web Model)
- An abstract representation of a web page that captures the meaning and relationships of its content, rather than its raw HTML structure. Unlike the Document Object Model (DOM), which represents syntac…
- Single-Page Application (SPA)
- A web application that loads a single HTML document and dynamically updates its content through JavaScript without requiring full page reloads. SPAs use client-side routing and AJAX requests to fetch …
- Skip Link (Skip Navigation Link, Skip Nav, Bypass Block)
- A hidden or visible hyperlink placed at the beginning of a web page that allows keyboard and screen reader users to jump directly to the main content, bypassing repeated navigation elements. Skip link…
- Skip Navigation (Skip Link, Skip Nav, Bypass Block)
- A mechanism, typically an in-page anchor link placed at the very beginning of a web page, that allows keyboard and screen reader users to bypass repetitive content such as navigation menus and jump di…
- Slide Deck Accessibility (Presentation Accessibility)
- The practice of designing slide presentations to be usable by people with diverse disabilities, encompassing visual design choices (font size, colour contrast, background colour), structural elements …
- Social Media Accessibility
- The practice of making social media platforms, content, and interactions accessible to people with disabilities. This encompasses platform-level features (alt text support, caption generation, screen …
- Social Networking Site (SNS, Social Network, Social Media Platform)
- A social networking site (SNS) is an online platform that enables users to create profiles, connect with others, share content, and engage in social interactions. Examples include Facebook, Twitter/X,…
- Standards Harmonization (Standards Harmonisation, Accessibility Standards Alignment)
- The effort to align web accessibility standards and guidelines across different jurisdictions, organizations, and markets to create a unified set of requirements that developers and content creators c…
- State Abstraction (Page State Abstraction, State Grouping)
- In automated web GUI testing, state abstraction is the process of grouping web pages that exhibit the same behaviour from a testing perspective into a single representative state. Effective state abst…
- Success Criteria (Success Criterion, SC)
- The testable statements within the Web Content Accessibility Guidelines (WCAG) that define specific requirements for making web content accessible. Each success criterion is assigned a conformance lev…
- Tab Order (Focus Order, Navigation Order, Tabbing Order)
- The sequence in which interactive elements receive keyboard focus when a user presses the Tab key to navigate through a web page or application. A logical tab order follows the visual layout and task …