Glossary

Searchable terminology from accessibility, web standards, and related fields.

27 results found in crowdsourcing.

Annotation (Web Annotation, Content Annotation)
The practice of adding supplementary information, notes, or metadata to existing digital content, typically without modifying the original source. In accessibility, annotation is used to add alternati…
Assistive Services (Crowdsourced Assistive Services, Human-powered Accessibility Services)
On-demand services that pair people with disabilities with remote human helpers, often via crowdsourcing or a dedicated responder network, to answer accessibility questions or perform small assistive …
Citizen Sensing (Citizen Sensor, Participatory Sensing)
A data collection approach in which members of the public use mobile devices or other tools to gather and report information about their environment, contributing to collective datasets that can infor…
Collaborative Accessibility Authoring (Collaborative Authoring, Crowdsourced Accessibility)
An approach to web accessibility in which a community of volunteers collaboratively creates, maintains, and shares accessibility fixes for websites they do not own or control. Rather than relying sole…
Community Sourcing (Community-Driven Accessibility)
An approach to creating accessible content by drawing on community members who have domain expertise or vested interest in the content, rather than relying on professional describers or general crowdw…
Community-sourcing (Community Sourcing, Community-contributed Data)
A data collection approach where members of a specific community contribute information based on their direct experience and local knowledge, as distinct from general crowdsourcing which draws on anon…
Crowd Accessibility (Crowdsourcing for Accessibility, Human-Powered Access Technology)
An approach that combines human intelligence with machine intelligence to create accessible content and services for people with disabilities. In crowd accessibility, micro-tasks that automated system…
Crowdsourced Accessibility (Crowdsourced Accessibility Auditing, Citizen-Sourced Accessibility)
The practice of collecting accessibility information about physical or digital environments through contributions from large numbers of people, rather than relying solely on professional auditors. In …
Crowdsourced Accessibility Mapping (Collaborative Accessibility Mapping, Citizen-Sourced Accessibility Data)
The practice of using contributions from members of the public to identify, report, and map accessibility barriers and features in physical or digital environments. In urban contexts, crowdsourced acc…
Crowdsourced Captioning (Crowd Captioning, Collaborative Captioning)
Crowdsourced captioning is an approach to creating video captions or subtitles by distributing the work across multiple contributors rather than relying on a single professional captionist. This metho…
Curation (Content Curation, Accessibility Curation)
The process of selecting, organizing, and presenting digital content or resources to serve a particular audience or purpose. In accessibility contexts, curation refers to the proactive work of identif…
Distributed Proofreaders (DP, PGDP)
A long-running volunteer crowdsourcing initiative, founded in 2000, that proofreads OCR output for Project Gutenberg using a side-by-side web interface showing the scanned page image and the extracted…
Friendsourcing
A practice where people with disabilities turn to friends, family members, or social network contacts to obtain assistance with accessibility-related tasks, such as describing images, identifying obje…
Gamification
The application of game design elements — such as points, rewards, competition, collection mechanics, and progress tracking — in non-game contexts to increase engagement and motivation. In accessibili…
Gamification (Games with a Purpose, GWAP)
The application of game design elements — such as points, levels, leaderboards, and time challenges — to non-game tasks in order to increase engagement and motivation. In accessibility, gamification h…
Human Computation
A computing paradigm in which humans perform tasks that computers cannot yet do reliably, often embedded within systems that combine human and machine capabilities. The classic example is reCAPTCHA, w…
Human-Powered Accessibility (Human Computation for Accessibility, Crowd-Powered Assistive Technology)
An approach to assistive technology that uses remote human workers — whether paid crowdworkers, volunteers, or trained agents — to provide accessibility services that automated systems cannot yet deli…
Iterative Crowdsourcing (Iterative Human Computation, Multi-Round Crowdsourcing)
A human computation workflow in which multiple rounds of crowd workers build iteratively upon each other's responses to collectively achieve higher quality results than any individual worker could pro…
Legion:Scribe (Scribe, Legion Scribe)
A crowd captioning system developed at the University of Rochester that enables multiple non-expert typists to collectively produce real-time captions by simultaneously typing partial transcriptions o…
Passive Accessibility Sensing (Automatic Barrier Detection, Breadcrumb Sensing)
A data collection approach that uses smartphone sensors (GPS, accelerometers, gyroscopes) to automatically detect potential accessibility barriers in the physical environment without requiring active …