Foundations

Accessibility

A quality standard for digital experiences: people with disabilities should be able to perceive, understand, navigate, and complete tasks with comparable independence.

Overview

Accessibility is the practice of designing and evaluating digital experiences so disabled people can use them effectively in real contexts, not just pass a checklist.

Why It Matters

If accessibility is treated as a vague opinion, teams ship barriers and cannot defend quality claims. Shared definitions help teams make accountable decisions.

What to Look For

  • Can people complete the primary task with a keyboard only?
  • Is critical information still clear at 200% zoom and in high-contrast conditions?
  • Are labels, instructions, and error messages explicit and persistent?
  • Do findings cite a source of authority, not only intuition or AI output?

Standards & Guidance

  • WCAG gives technical conformance criteria that can support evidence.
  • Institutional and legal requirements determine accountability context.
  • No single source answers every accessibility question; triangulate evidence.

Authoritative Resources

In This Course

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