Micro-task

A small, self-contained unit of work that can be completed independently, typically in seconds to minutes, often distributed through crowdsourcing platforms. In accessibility contexts, micro-tasks such as image description, transcription, and content tagging are commonly used both as employment opportunities for people with disabilities and as mechanisms for generating accessible content like alt text and captions at scale. The design of micro-task interfaces — including task complexity, step decomposition, and search mechanisms — significantly affects their accessibility for workers with cognitive and developmental disabilities.