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Accessible Websites Removing the Barriers

Accessible Websites Removing the Barriers. Anne L. Allen University of Florida, Academic Technology Center for Instructional Technology and Training. Accessibility. "The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect."

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Accessible Websites Removing the Barriers

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  1. Accessible WebsitesRemoving the Barriers Anne L. Allen University of Florida, Academic Technology Center for Instructional Technology and Training

  2. Accessibility "The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect." Tim Berners-Lee, W3C Director and inventor of the World Wide Web

  3. What is accessibility on the web? • Web sites are accessible when individuals with disabilities can access and use them as effectively as people who do not have disabilities.

  4. Who, me? • I don’t have any students with disabilities. • This seems like a lot of trouble for a small number of people who might possibly use the material.

  5. What do these have in common? • Carbon paper • Typewriter • Curb cuts

  6. Who benefits? • Carbon paper • First developed for blind and partially sighted clerks who could not tell when their quill pens ran out of ink.

  7. Who benefits? • Typewriter • The first working typewriter was built by Pellegrino Turri in 1808 for his blind friend Countess Carolina Fantoni da Fivizzono so she could write legible love letters.

  8. Who benefits? Curb Cuts

  9. What kinds of disabilities? • Blindness • Other visual impairments • Learning disabilities • Mobility impairments • Photosensitive seizure disorders • Hearing impairments

  10. What Kinds of Difficulties? • Blindness • Inability to access graphical information • Solution • Provide a text equivalent for every non-text element

  11. What Kinds of Difficulties? • Visual impairments • Difficulty reading tables and charts • Inability to make sense of pages when magnified • Solution • Design sites using relative rather than absolute values for width and height of rows and columns and images

  12. What Kinds of Difficulties? • Learning disabilities • May have difficulty understanding cluttered websites and layout changes from screen to screen • Solution • Follow usability and accessibility guidelines when creating sites – better design for all

  13. What Kinds of Difficulties? • Mobility impairments • May not be able to respond that call for a timed response (such as quizzes) • Solution • Allow users to adjust the timing of responses

  14. What Kinds of Difficulties? • Photosensitive seizure disorders • Flickering images and text may trigger seizures • Solution • Avoid the use of flickering elements

  15. What Kinds of Difficulties? • Hearing impairments • Unable to hear multimedia presentations using sound, such as recorded lectures or videos • Solution • Multimedia presentations must be captioned or provided in alternate formats

  16. Assistive Technology • How do people with disabilities use the Web? • How do you use the Web without a mouse?

  17. Assistive Technology How does Quick Glance work? Camera mounted on computer monitor is focused on user's eye. It determines where user is looking-- --the gaze point cursor is placed at the gaze point. "Mouse clicks" are done with a slow eye blink, an eye dwell, or a hardware switch.

  18. Assistive Technology Sip and Puff

  19. Foot Mouse one pedal controls cursor movement, the other for mouse clicks Assistive Technology Add-on Touch Screen

  20. Assistive Technology • Alternative Keyboards

  21. Assistive Technology • On Screen Keyboards

  22. Assistive Technology Roller Switches Power Braille

  23. Accessibility • What are the challenges of using the web without seeing the page? • How does a screen reader read images? Audio files? Video files?

  24. Web Page Reader • Home Page Reader • www.ufl.edu • www.nytimes.com

  25. HPR Exercise • Find forecast high temperature for today at www.usatoday.com or www.cnn.com • Find what the latest hurricane warnings are at www.weather.com • What trains go from Los Angeles to Chicago around 7:00 AM on October 1, 2004 (www.amtrak.com) • At www.aa.com find the lowest round trip fare from Los Angeles to Honolulu

  26. Accessibility • Could you complete your task? • If not, what were the barriers?

  27. Accessibility is not “in” the Web page • Accessibility is experiential • User is able to use data, information, and services as effectively as someone without a disability • Accessibility is environmental • It depends on the interaction of the document with user agents, assistive technologies--and people

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