Glossary
Searchable terminology from accessibility, web standards, and related fields.
899 results found in Assistive Technology.
- Screen Reader Output (Screen Reader Speech)
- The audio or braille output generated by screen reader software as it interprets and conveys on-screen content to blind and low vision users. Screen reader output quality significantly impacts reading…
- Screen Reader Plugin (Screen Reader Add-on, Screen Reader Script, Screen Reader Extension)
- A small piece of code that extends or modifies the functionality of a screen reader application. Screen reader plugins can make inaccessible applications accessible, customize the screen reader's beha…
- Screen Reader Proxy
- An interface that sits between an automated agent or testing tool and an application, translating programmatic inputs (swipe, double-tap, type) into genuine screen reader gestures and capturing the re…
- Screen Reader User (SRU)
- A person who uses screen reader software as their primary means of accessing digital content, typically someone who is blind or has low vision. Screen reader users interact with web content through au…
- Screen Reader/2 (IBM Screen Reader/2, SR/2)
- Screen Reader/2 was an early screen reader developed by IBM for the OS/2 operating system, first released in the early 1990s. It was one of the pioneering commercial screen readers, providing blind an…
- Screen Recognition
- A computer vision feature in Apple's VoiceOver screen reader that automatically interprets the pixels of a graphical user interface to identify and label interactive elements when applications have no…
- Screen magnifier (Screen magnification software, Zoom software)
- Assistive software that enlarges a portion of the screen display to make content visible for people with low vision. Users navigate the magnified view by panning with the mouse or keyboard, seeing onl…
- Selection Keyboard (On-Screen Keyboard, Scanning Keyboard, Virtual Keyboard)
- A text entry interface where characters are displayed in a grid on screen and users select them by navigating a cursor or highlight to the desired character using an alternative input device such as a…
- Self-Adaptive System (Self-Adapting System, Adaptive Interface)
- A software or hardware system that automatically monitors user behaviour and adjusts its configuration or interface to better suit the user's needs without requiring explicit manual intervention. In a…
- Self-Monitoring (Self-Recording, Self-Observation)
- Self-monitoring is the practice of systematically observing and recording one's own behavior, emotions, or activities, typically as part of a broader self-management or behavioral intervention program…
- Self-Voicing Browser (Self-Voicing Web Browser, Talking Browser, Self-Talking Browser)
- A self-voicing browser is a web browser that includes built-in text-to-speech capabilities, allowing it to read web content aloud without requiring a separate screen reader application. Unlike traditi…
- Self-Voicing Interface (Self-Voicing, Self-Voicing Application)
- A software application or interface that includes its own built-in speech output capability, rather than relying on a separate screen reader to interpret and voice its content. Self-voicing interfaces…
- Self-localization (Indoor Localization, Position Estimation)
- The process by which a system or device determines its own position within an environment, typically using a combination of sensors, maps, and reference points. In assistive technology for blind and v…
- Semantic Description (SD, Navigational Semantic Description)
- A formal representation of the meaningful structure and navigational relationships within a complex document component such as an HTML table, frame, or XML fragment. Semantic descriptions capture what…
- Semantic Disambiguation (Word Sense Disambiguation)
- Semantic disambiguation is the process of determining the intended meaning of a word, symbol, or input when multiple interpretations are possible. In accessibility and assistive technology contexts, s…
- Semantic Enrichment (Semantic Annotation, Semantic Markup Enhancement)
- Semantic enrichment is the process of adding meaningful structural and contextual information to content that may lack it in its original representation. In the context of web accessibility, this ofte…
- Semantic Hierarchy (Semantic Tree, Component Hierarchy)
- A structured, tree-based representation of a complex object that organizes its components by meaning and relationship rather than by raw data. In accessible 3-D modeling, a semantic hierarchy breaks d…
- 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…
- Semantic Network (Semantic Web, Associative Network)
- A knowledge representation structure in which concepts are represented as nodes and the relationships between them as links or edges. In accessibility and AAC contexts, semantic networks model how wor…
- Semantic Transcoding (Annotation-driven Transcoding, Ontology-based Transcoding)
- Semantic transcoding is the transformation of web content using explicit semantic information about the structure, role, or meaning of page elements — typically supplied through external annotations, …