miércoles, 24 de agosto de 2016

Las 10 de reglas de oro para el diseño web accesible (según la Comisión Europea)

En 10 golden rules in accessible Web design encontramos:


  1. Provide text alternatives
    1. Non-text content (images, audio and video…)
    2. Equivalent purpose
    3. Multiple ways of providing alternatives
    4. CAPTCHA needs accessible alternatives
    5. Decorative content
    6. Images of text
  2. Structure contents
    1. Headings
    2. Lists
    3. Data tables
    4. Markup vs. style sheets
    5. Resize text
    6. Bypass blocks
  3. Avoid dependence on a single sense
    1. Captions and audio descriptions
    2. Use of colour
    3. Sensory characteristics
    4. Contrast
    5. Background audio
  4. Make all functionalities keyboard accessible
    1. Keyboard access
    2. No keyboard trap
    3. Focus order and visibility
    4. Unexpected behaviour
    5. Drop down menus, accordions, carousels…
  5. Give users enough time
    1. Timing adjustable
    2. Automatic redirections
    3. Long processes
    4. Banners
  6. Avoid interferences
    1. Seizures and flashes
    2. Audio control
    3. Blinking, moving, auto-updating
    4. Opening new windows
    5. Unexpected behaviour
  7. Identify hyperlinks and contents
    1. Link purpose
    2. Page titles
    3. Language of page and parts
    4. Form labels
    5. Section headings
    6. Opening new windows
  8. Make navigation interfaces consistent
    1. Consistent navigation
    2. Consistent identification
    3. Multiple ways
    4. Information architecture
  9. Help users avoid mistakes
    1. Labels and instructions
    2. Error identification
    3. Error suggestion
    4. Error prevention
    5. Good information architecture
  10. Ensure compatibility
    1. Web standards and code validation
    2. Accessible use of technologies
    3. User tests
    4. JavaScript, PDF and Flash
    5. WAI-ARIA: Accessible Rich Internet Applications

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