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web 2.0   & universal design
Introduction <ul><li>From then to now </li></ul><ul><li>Layers of change </li></ul><ul><li>Accessible for whom?  </li></ul...
1. From then to now
1989 - a vintage year <ul><li>Ted Henson releases JAWS (Job Access With Speech) </li></ul><ul><li>Tim Berners-Lee’s origin...
Universality and accessibility <ul><li>&quot; The power of the Web is in its universality. Access by everyone regardless o...
WCAG 1 <ul><li>May, 1999 – WCAG 1 released  </li></ul><ul><li>Adopted widely </li></ul>
The modern web <ul><li>Inclusive/open </li></ul><ul><li>Collaborative </li></ul><ul><li>Interactive/Rich user experience <...
Back to the future <ul><li>The accessibility message is slipping - we seem to be going backwards </li></ul><ul><li>Hostili...
2. Layers of change
The PDF story <ul><li>1993 – release of PDF 1 </li></ul><ul><li>Moving to the Web </li></ul><ul><li>Early PDF not accessib...
The Flash story <ul><li>Demand for the “TV experience”  </li></ul><ul><li>1996 - Macromedia release Flash 1 </li></ul><ul>...
The AJAX story <ul><li>2005 - Jesse James Garret introduces AJAX </li></ul><ul><li>What is AJAX?  </li></ul><ul><li>AJAX i...
Stimulus and process <ul><li>Initial stimulus for PDF and Flash </li></ul><ul><li>Improvements filter down  </li></ul><ul>...
About Pace layering <ul><li>Stuart Brand introduces “Pace Layering” in his book “How Buildings Learn” </li></ul><ul><li>At...
Pace layering - key elements <ul><li>Changes that happen at one layer filter down </li></ul><ul><li>Differing rates of cha...
Pace layering and the web <ul><li>When considering the question of Web 2.0 accessibility, we decided to take a Pace Layeri...
Pace layering and the web
AJAX and pace layering
AJAX and pace layering
AJAX and pace layering
AJAX and pace layering
AJAX and pace layering
Image replacement
Image replacement
3. Accessibility for whom?
Web accessibility 1.0 <ul><li>Vision impairment to where? </li></ul>
Is Flash a valid tool? <ul><li>high impact visual websites </li></ul><ul><li>can be accessible  </li></ul><ul><li>can also...
Dissin’ Flash <ul><li>Text and non-text alternatives </li></ul><ul><li>Who’s afraid of Flash </li></ul>
Is Second Life accessible? <ul><li>Not for screen reader users </li></ul><ul><li>How about people with other disabilities?...
4. Web 2.0 and accessibility
Web 2.0 accessibility <ul><li>Are we more inclusive than before? </li></ul><ul><li>Is it getting easier? </li></ul>
Are we more inclusive? <ul><li>The web has become more inclusive in publishing - blogging, flickr, youtube, facebook, mysp...
Is it getting easier? <ul><li>Should users or applications be responsible for accessibility? </li></ul><ul><li>Ideally too...
5. What is universal design?
The right model? <ul><li>Universality & Accessibility camps </li></ul><ul><li>One-web? </li></ul>
One site doesn’t fit all <ul><li>Different disabilities – different audiences </li></ul><ul><li>Text only </li></ul><ul><l...
Ghettos or narrow-casting <ul><li>Ghettoisation </li></ul><ul><li>Is “text-only” the way to go? </li></ul><ul><li>The brai...
6. Looking to the future
W3C and WAI <ul><li>Limited opportunities for participation </li></ul><ul><li>WCAG 2 </li></ul><ul><li>Last Call Draft (Ap...
Pace layering done right
Pace layering done right
Pace layering done right
Pace layering done right
Pace layering done right
Core driven change
Core driven change
Core driven change ? ?
Core driven change HTML5 Baseline
7. Conclusion
Thank you
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Roger Hudson

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Transcript of "Roger Hudson"

  1. 1. web 2.0 & universal design
  2. 2. Introduction <ul><li>From then to now </li></ul><ul><li>Layers of change </li></ul><ul><li>Accessible for whom? </li></ul><ul><li>Web 2.0 and accessibility </li></ul><ul><li>What is Universal Design? </li></ul><ul><li>Looking to the future </li></ul>
  3. 3. 1. From then to now
  4. 4. 1989 - a vintage year <ul><li>Ted Henson releases JAWS (Job Access With Speech) </li></ul><ul><li>Tim Berners-Lee’s original proposal for the web </li></ul>
  5. 5. Universality and accessibility <ul><li>&quot; The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect .” </li></ul><ul><li>Tim Berners-Lee </li></ul>
  6. 6. WCAG 1 <ul><li>May, 1999 – WCAG 1 released </li></ul><ul><li>Adopted widely </li></ul>
  7. 7. The modern web <ul><li>Inclusive/open </li></ul><ul><li>Collaborative </li></ul><ul><li>Interactive/Rich user experience </li></ul><ul><li>New jargon (web 2.0, mashups) </li></ul><ul><li>Rapid growth in online communities </li></ul>
  8. 8. Back to the future <ul><li>The accessibility message is slipping - we seem to be going backwards </li></ul><ul><li>Hostility towards legislation of accessibility - “How dare they tell us we have to do this” </li></ul><ul><li>Arguments in the web community - such as the Target, Flickr and CAPTCHA </li></ul>
  9. 9. 2. Layers of change
  10. 10. The PDF story <ul><li>1993 – release of PDF 1 </li></ul><ul><li>Moving to the Web </li></ul><ul><li>Early PDF not accessible </li></ul><ul><li>Accessibility gradually improves </li></ul>
  11. 11. The Flash story <ul><li>Demand for the “TV experience” </li></ul><ul><li>1996 - Macromedia release Flash 1 </li></ul><ul><li>Poor accessibility </li></ul><ul><li>2002 - Flash MX and Player 6 released </li></ul><ul><li>2002 - JAWS 4.5 released (with MSAA support) </li></ul>
  12. 12. The AJAX story <ul><li>2005 - Jesse James Garret introduces AJAX </li></ul><ul><li>What is AJAX? </li></ul><ul><li>AJAX inaccessible under WCAG1 </li></ul><ul><li>2006 - JAWS 7.1 released with some support for AJAX </li></ul><ul><li>2008 - JAWS 8 released - better support </li></ul>
  13. 13. Stimulus and process <ul><li>Initial stimulus for PDF and Flash </li></ul><ul><li>Improvements filter down </li></ul><ul><li>Reflected in guidelines </li></ul><ul><li>Process slow </li></ul><ul><li>AJAX - process quick </li></ul>
  14. 14. About Pace layering <ul><li>Stuart Brand introduces “Pace Layering” in his book “How Buildings Learn” </li></ul><ul><li>At the core level change happens slowly </li></ul><ul><li>At the surface level change happens rapidly </li></ul><ul><li>Change often causes tension and friction between layers </li></ul>
  15. 15. Pace layering - key elements <ul><li>Changes that happen at one layer filter down </li></ul><ul><li>Differing rates of change cause friction between layers </li></ul><ul><li>The different rates of change are beneficial </li></ul>&quot;The fast parts learn, propose, and absorb shocks; the slow parts remember, integrate, and constrain. The fast parts get all the attention. The slow parts have all the power.” Steward Brand, The Long Now Foundation
  16. 16. Pace layering and the web <ul><li>When considering the question of Web 2.0 accessibility, we decided to take a Pace Layering look at the development of the web. </li></ul>
  17. 17. Pace layering and the web
  18. 18. AJAX and pace layering
  19. 19. AJAX and pace layering
  20. 20. AJAX and pace layering
  21. 21. AJAX and pace layering
  22. 22. AJAX and pace layering
  23. 23. Image replacement
  24. 24. Image replacement
  25. 25. 3. Accessibility for whom?
  26. 26. Web accessibility 1.0 <ul><li>Vision impairment to where? </li></ul>
  27. 27. Is Flash a valid tool? <ul><li>high impact visual websites </li></ul><ul><li>can be accessible </li></ul><ul><li>can also be used to present complex ideas in simple ways </li></ul><ul><li>ideal for cognitive and learning difficulties </li></ul><ul><ul><li>http://www.trans-active.org.uk/teenz/transit/index.htm </li></ul></ul><ul><ul><li>http://www.starfall.com/ </li></ul></ul><ul><li>very few websites in this area - why? </li></ul>
  28. 28. Dissin’ Flash <ul><li>Text and non-text alternatives </li></ul><ul><li>Who’s afraid of Flash </li></ul>
  29. 29. Is Second Life accessible? <ul><li>Not for screen reader users </li></ul><ul><li>How about people with other disabilities? </li></ul><ul><li>Video </li></ul>
  30. 30. 4. Web 2.0 and accessibility
  31. 31. Web 2.0 accessibility <ul><li>Are we more inclusive than before? </li></ul><ul><li>Is it getting easier? </li></ul>
  32. 32. Are we more inclusive? <ul><li>The web has become more inclusive in publishing - blogging, flickr, youtube, facebook, myspace </li></ul><ul><li>But what about accessing this new content? </li></ul>
  33. 33. Is it getting easier? <ul><li>Should users or applications be responsible for accessibility? </li></ul><ul><li>Ideally tools/applications should carry the burden </li></ul><ul><li>Flickr default alt </li></ul>
  34. 34. 5. What is universal design?
  35. 35. The right model? <ul><li>Universality & Accessibility camps </li></ul><ul><li>One-web? </li></ul>
  36. 36. One site doesn’t fit all <ul><li>Different disabilities – different audiences </li></ul><ul><li>Text only </li></ul><ul><li>Different presentation - same CONTENT </li></ul><ul><li>Different content - same CONCEPT </li></ul><ul><li>One site does not fit all </li></ul>
  37. 37. Ghettos or narrow-casting <ul><li>Ghettoisation </li></ul><ul><li>Is “text-only” the way to go? </li></ul><ul><li>The brain machine </li></ul><ul><li>Narrow-casting </li></ul>
  38. 38. 6. Looking to the future
  39. 39. W3C and WAI <ul><li>Limited opportunities for participation </li></ul><ul><li>WCAG 2 </li></ul><ul><li>Last Call Draft (April 2006) </li></ul><ul><li>What about people with cognitive and learning difficulties </li></ul><ul><li>Baseline hostility – why? </li></ul>
  40. 40. Pace layering done right
  41. 41. Pace layering done right
  42. 42. Pace layering done right
  43. 43. Pace layering done right
  44. 44. Pace layering done right
  45. 45. Core driven change
  46. 46. Core driven change
  47. 47. Core driven change ? ?
  48. 48. Core driven change HTML5 Baseline
  49. 49. 7. Conclusion
  50. 50. Thank you
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