Web Accessibility Guidelines Over Time


  1. Initially -- at beginning of Web -- none
    • before many of the accessibility problems arose
  2. Proliferation of different guidelines
    • disability-specific
    • technology-specific
    • legacy-based
  3. "Unified Guidelines" (compiled Trace version)
  4. W3C/WAI WCAG 1.0, ATAG 1.0, UAAG 1.0
  5. WCAG 1.0 subsets and spin-offs, and new versions developed in isolation
  6. ATAG 1.0 & UAAG 1.0 only implemented incrementally
  7. WCAG 2.0 in development
  8. International convergence onto WCAG 2.0, plus ATAG & UAAG?