Glossary
Searchable terminology from accessibility, web standards, and related fields.
212 results found in Web Accessibility.
- WAI-ARIA (ARIA, Accessible Rich Internet Applications, WAI-ARIA Specification)
- A W3C technical specification that defines a set of HTML attributes (roles, states, and properties) to make dynamic web content and custom user interface widgets accessible to people using assistive t…
- WCAG Compliance (WCAG Conformance, Web Accessibility Compliance)
- The degree to which a website or web application meets the requirements specified in the Web Content Accessibility Guidelines (WCAG). WCAG defines three conformance levels (A, AA, AAA) with increasing…
- Web Accessibility Audit (Accessibility Audit, WCAG Audit)
- A systematic evaluation of a website or web application against accessibility standards (typically WCAG) to identify barriers that prevent people with disabilities from accessing content. Audits may b…
- Web Accessibility Barrier (WAB, Accessibility Barrier)
- Any element, design pattern, or technical implementation on a web page that prevents or hinders people with disabilities from accessing, understanding, or interacting with content. Common web accessib…
- Web Accessibility Barrier Score (WAB, WAB Score)
- A quantitative metric for measuring the accessibility level of a website, defined as the mean value of the failure rate of accessibility checkpoints on a page, weighted by the priority of each checkpo…
- Web Accessibility Quantitative Metric (WAQM)
- An accessibility evaluation metric that calculates a quantitative score for a website based on automatically generated evaluation reports. WAQM computes the failure rate for each tested page, then der…
- Web Agent (Autonomous Web Agent, Browser Agent)
- An AI system that can autonomously perform tasks on websites by interpreting user goals and executing actions such as clicking, typing, and navigating. Web agents often use large language models or mu…
- Web Authoring (Web Authoring Tool, Content Authoring, Website Authoring)
- Web authoring is the creation and editing of webpage content and structure, historically by writing HTML, CSS, and JavaScript, and increasingly through graphical WYSIWYG tools (Figma, Wix, Squarespace…
- Web Complexity (Page Complexity, Website Complexity)
- A measure of the technical sophistication and structural density of a web page, typically assessed by the number and types of HTML elements, scripts, embedded objects, and interactive features present…
- Web Compliance Engineering
- A discipline within Web Engineering focused on the application of quality assurance, testing, and management processes to ensure that web applications conform to standards, policy environments, and ot…
- Web Composition (Component-Based Web Development)
- Web composition is the practice of building web pages by dynamically combining smaller, reusable pieces of HTML markup — often called snippets, components, or fragments — into complete pages. Modern w…
- Web Content Filtering (Content Filtering, Page Filtering)
- The process of selectively displaying or hiding elements on a webpage based on specified criteria. Web content filtering encompasses both type-based filtering (e.g., ad blockers that remove advertisem…
- Web Interaction Environment (WIE)
- A modelling concept defined as a particular audience group's set of intrinsic characteristics upon which tailored evaluation procedures can be applied to a website. Introduced by Lopes and Carrico (20…
- Web Intermediary (Web Proxy, Transcoding Proxy)
- A system that sits between a user's web browser and the web server, intercepting and modifying HTTP requests and responses to adapt web content before it reaches the user. In accessibility contexts, w…
- Web Mediation (Web Content Mediation, Web Accessibility Mediation)
- The process of automatically modifying web content as it passes between a web server and a user's browser, typically through a proxy server or browser extension, to improve its accessibility or usabil…
- Web Mobility (Hypertext Mobility, Web Navigation Mobility)
- A conceptual framework that applies principles of physical mobility and wayfinding to web navigation, particularly for visually impaired users. Web mobility encompasses the ability to move through hyp…
- Web Navigation (Website Navigation, Web Browsing Navigation)
- The process of moving through and finding information on websites, encompassing strategies like following links, using search, scanning headings, and interacting with menus and filters. Web navigation…
- Web Page Complexity (Page Complexity, Structural Complexity)
- A measure of how much a web page contains in terms of interactivity, embedded media, and structural richness. The W3C's WCAG-EM defines complexity through three factors: level of interactivity, source…
- Web Page Preview (Page Preview, Link Target Preview)
- A summary or representation of a web page's content provided to users before they navigate to that page, allowing them to assess its relevance without committing to a full visit. For sighted users, vi…
- Web Proxy (HTTP Proxy, Intermediary, Edge Service, Proxy Server)
- A web proxy (or intermediary) is a server that sits between a user's browser and the origin web server, intercepting and potentially modifying HTTP requests and responses as they pass through. In the …