WCAG (Web Content Accessibility Guidelines)
The W3C's testable accessibility standard for web content, organised around perceivable, operable, understandable and robust; version 2.2 is the current recommendation.
- Standards body
- W3C
- Current version
- 2.2 (October 2023)
- Referenced by
- European Accessibility Act
Connected
- European Accessibility ActEU Directive 2019/882, applying from 28 June 2025, requiring listed products and services sold to EU consumers, including e-commerce, banking, e-books and transport booking, to be accessible.
- HTML (.html)The markup language of the web. For agent output it gives people a designed, interactive page, at a token cost that depends on whether the agent re-invents the design each run.
Linked from
- Accessibility testingEvaluation of digital accessibility through automated checks, knowledgeable manual assessment and research with people with different access needs. Conformance evaluation and usability research provide complementary evidence.
- ARIA live regionsPage areas marked with aria-live so screen readers announce their changes; the standard way to announce chat replies and status messages without moving focus.
Field notes that cover WCAG (Web Content Accessibility Guidelines)
More concepts & methods
- machine learningscientific study of algorithms and statistical models that computer systems use to perform tasks without explicit instructions
- deep learningspecialized form of machine learning that uses artificial neural networks to identify patterns in data
- genetic algorithmcompetitive algorithm for searching a problem space
- Altitude, depth and rangeFelix Rieseberg’s framework for ambition with AI models: speed repeats work faster, altitude targets outcomes, depth uses expert instruments and range combines disciplines.
- Outcome-based promptingAsking an AI agent to pursue a specified change for a user or system, with evidence and boundaries, instead of merely producing a named deliverable.
- AI outside judgeAn acceptance check outside an agent’s self-assessment, such as a deterministic test, held-out evaluation, measurement or separately briefed reviewer.