Accessibility
  1. Accessibility is intented to ensure that our work will be usable and available to the largest possible number of readers, visitors and customers;
  2. For users who:
    • May not be able to see, hear, move, or process some types of information easily or at all;
    • Have a voice browser;
    • Have difficulty reading or processing information due to cognitive disabilities;
    • May not have or be able to use (or for some reason do not have) a keyboard or mouse;
    • Have a text-only screen, or an older computer;
    • May be using a device such as a cell phone or a PDA;
  3. Users should be able to:
    • Read and react to text and images;
    • Type on a standard keyboard;
    • Point & click on text, images & widgets;
    • Hear and react to sounds played;
  4. Disabilities
    1. Visual impairments & print disabilities
      • Blind and deaf-blind people use screen reading software;
      • Partially sighted people may use font/contrast settings or screen magnification software;
      • Dyslexic [?] people use text to speech software combined with word highlighting;
    2. Physical disabilities
      • Quadriplegics [?] use the keyboard with a mouth stick, on screen keybords, domicile software, speech input software and head/eye tracking mice;
      • One handed typists use sticky-key software;
      • People with ALS [?] or cerebral palsy may use filter keys, word prediction software and single switch devices;
    3. Other disabilities
      • Hearing impaired people need software that do not rely on sound for cues;
      • Color blind people need software that does not rely on color alone;
      • Persons with cognitive and learning disbilities need software with simple layout and messages;
      • Persons with epilepsy [?] need software with no flashing or blinking;
    Ishihara 29 test diagram
    Ishihara 26 test diagram
    Ishihara 45 test diagram
  5. W3C launched WAI with the task to create guidelines ( WCAG 2.0 ) for making web content accesible to people with disabilities;
  6. Section 508 is an american law which is intented to end discrimination against people with disabilities ("equal or equivalent access to everyone");
  7. Example: WAI Site

    Normal View

    Normal View

    Without Images

    Without Images

    Without Style

    Without Style

    Lynx

    Lynx

    Screen Readers

    Screen Readers
  8. Opera Accesibility
  9. Google Accessible Search - promotes results that are accessible;
  10. Lynx Viewer
  11. Opera Mini Simulator
Google Mobile
Know your visitors
  • General Solution: Google Analitics
  • The most popular browser worldwide is IE 6.0. Tech-related web-sites have more Firefox users.
    Browsers
  • The most used screen resolution worldwide is 1024768
    Screen Resolution
  • The most popular OS is Windows XP
    OS