Glossary
Searchable terminology from accessibility, web standards, and related fields.
212 results found in Web Accessibility.
- DOM Manipulation (DOM Modification, Document Object Model Manipulation)
- The programmatic modification of a webpage's Document Object Model (DOM) to change its structure, content, styling, or behavior. In accessibility contexts, DOM manipulation is used by browser extensio…
- Dark Pattern (Deceptive Pattern, Manipulative Design)
- A user interface design deliberately crafted to trick, manipulate, or coerce users into making unintended choices that benefit the service provider rather than the user. Dark patterns include hidden c…
- Data Table (Genuine Table)
- An HTML table element used to present structured, tabular information where data cells have a logical relationship to header cells. Accessible data tables require proper semantic markup including th e…
- Defluffing (Content Defluffing, Clutter Removal)
- The process of removing non-essential visual elements from a web page — such as banners, advertisements, decorative images, and sidebar content — to expose the core information content more directly t…
- Distraction Control (Distraction Filtering, Focus Mode)
- Features or tools that help users suppress distracting content on web pages to maintain focus on their primary task. Distraction control ranges from manual tools (like Apple's Distraction Control in S…
- Document Engineering (Document Design, Document Processing)
- Document engineering is the discipline concerned with the principles, tools, and processes for creating, managing, transforming, and presenting documents in ways that optimise their use across differe…
- Document Object Model (DOM)
- A programming interface that represents the structure of an HTML or XML document as a tree of objects, where each element, attribute, and piece of text becomes a node that can be programmatically acce…
- Document Object Model (DOM)
- A programming interface for web documents that represents the page as a tree of objects, where each HTML element is a node that can be accessed and manipulated programmatically. The DOM is fundamental…
- Document Semantics (Page Semantics, Web Document Semantics)
- Document semantics refers to the layers of meaning embedded in a web page that go beyond the raw HTML markup — including layout semantics (spatial relationships between visual elements), content seman…
- Document accessibility (Accessible documents)
- The practice of creating digital documents (PDFs, Word files, presentations, spreadsheets) that can be read and navigated by people using assistive technologies. Key requirements include semantic stru…
- Domain Specific Language (DSL)
- A Domain Specific Language (DSL) is a small, specialised programming language designed for writing programs within a particular application domain, as opposed to a general-purpose language like Python…
- Dynamic Content Filtering (Intelligent Content Filtering, AI-Based Filtering)
- The automated process of selectively showing or hiding web content based on computed relevance to a user's goals, preferences, or context. Dynamic content filtering uses AI models (such as large langu…
- E-Commerce Accessibility (Accessible E-Commerce, Online Shopping Accessibility)
- The degree to which online shopping experiences — product discovery, evaluation, checkout, fulfilment, customer support, and (on peer-to-peer platforms) selling — are usable by people with disabilitie…
- EVITA (Enabling Visually Impaired Table Access)
- A specialized table browser developed at the University of Manchester designed to enable visually impaired users to navigate, browse, and read HTML data tables non-visually in a manner analogous to ho…
- External Metadata (Accessibility Metadata Overlay, Third-Party Metadata)
- External metadata in the context of web accessibility refers to supplementary information stored separately from a web page that can be applied to improve the page's accessibility without modifying th…
- Failure Rate (FR (accessibility metric))
- An accessibility metric introduced by Sullivan and Matson (2000) that, for a given page and a given checkpoint, divides the number of checkpoint violations found by the maximum number of violations th…
- Focus Indicator (Focus Ring, Visible Focus, Focus Outline)
- A visual cue that shows which interactive element on a page or in an application currently has keyboard focus. Focus indicators are typically rendered as an outline, border, or highlight around the fo…
- Focus Management (Focus Control, Programmatic Focus)
- The practice of controlling which element on a web page or application receives keyboard focus, and ensuring that focus moves in a logical and predictable manner as users interact with the interface. …
- Focus trap (Keyboard trap, Focus lock)
- A web accessibility barrier in which keyboard focus becomes confined to a particular element or region of a page, preventing the user from navigating away using standard keyboard commands. Focus traps…
- Gist Summary (Gist, Page Gist, Web Page Summary)
- A gist summary is a brief, automatically or manually generated overview of a document or web page that captures its central theme or focus, enabling a reader to quickly assess the content's relevance …