+ All Categories
Transcript
  • 1. Boosting New Media AccessibilityDr Scott HOLLIER Presentation for Web Directions South 2009

2. Who is Media Access Australia?

  • Not-for-profit organisation addressing access issues in:
    • TV
    • Cinema
    • DVD
    • Education
    • New Media
  • Access issues include captioning, audio description, computer-related and Internet-related access issues

3. Who am I?

  • Professional:
    • Project Manager New Media, Media Access Australia
    • Advisory Committee member of the W3C
  • Academic: PhD thesis examined ways to make computers and the Internet more accessible to people with disabilities
  • Personal: Legally blind, first-hand knowledge of access issues

4. Introduction

  • Why should you care for the IT needs of people with disabilities?
  • Brief history of access: benefits and barriers
  • User perspective: how do people with disabilities use computers and the Internet?
  • Developer perspective: W3C, WCAG 2.0 and ATAG 2.0 (draft)
  • Online video: perception and the reality
  • How MAA can support your development projects

5. What is new media?

  • New Media used to be about the emergence of digital technologies: now its about convergence
  • MAA looks at new media in terms of usability and accessibility
  • Usability is generally associated with intuitiveness and ease of use.
  • Accessibility focuses on application and design issues specifically for people with disabilities.Usability is an important part of accessibility

6. Cases for accessibility

  • Moral/Social case: care for others in society, good thing to do
  • Educational case: accessible online resources leads to improved educational opportunities, then to a reductions in unemployment and poverty
  • Corporate case: inaccessibility may prevent customers from purchasing goods and services
  • Legal case: danger of being sued if accessibility not considered (SOCOG, Target USA, HSBC)

7. Brief history of access

  • For the mainstream population, Internet was viewed primarily as an information and communication resource
  • For people with disabilities, Internet was viewed as a gateway to independence

8. Where we are

  • Today, both mainstream and people with disabilities view the Internet as an essential service due to:
    • Choice of media type: text, audio and video on demand
    • Real-time information delivery: Internet TV and radio
    • Real-time AV communication: Skype
    • Collaboration: Cloud computing and social networking

9. Access issues

  • Although these products sound great, people with disabilities are 18% less likely to have any form of Internet access in the home.Issues include:
    • Broadband access remains poor
      • 70% of the population
      • 30% of people with core disabilities
    • Website accessibility issues (social networking)

10. Access issues

    • Limited captioning and audio description availability
    • Cloud computing:some good hardware options (netbooks) but still access issues with phones/PDAs/online applications and OS.

11. Why your work is important

  • Initial premise of PhD study: people with disabilities are not using the Internet as much as the able-bodied population because they try to access computers and the Internet, but give up after running into barriers.
  • Was this true?

12. Why your work is important

  • No!
  • People surveyed were aware of importance of IT and highly knowledgeable
  • Although there were barriers, they dont give up and continue to fight for access
  • How to resolve:
    • Communication and engagement between developers and the end user is the key
    • Improvements to policy and legislative frameworks

13. User experience

  • Today, people with disabilities generally use assistive technologies to help use a computer
  • Assistive Technology is the practical implementation of technology to support and help people
  • OS contains many tools, but additional products often required for full featured access
  • AT software costs about $1200-$2000

14. Windows XP/Vista features

  • Change the icon and text size
  • Adjust cursor width and blink rate
  • Toggle Keys
  • Mouse pointer size and movement
  • Mouse Lock and Toggle Keys
  • Change the colour scheme to high contrast
  • Show Sounds
  • On-screen keyboard
  • Magnifier
  • Narrator

15. Additional Windows products

  • Screen reader (JAWS, Window Eyes)
  • Screen magnifier (ZoomText, MAGic)

16. Mac features

  • Improvements over Windows XP/Vista:
  • Improved screen reader VoiceOver
  • Full-screen Zoom feature
  • Braille display support
  • However
  • VoiceOver doesnt work with the Office suite (only works with Cocoa apps)
  • Hit-and-miss with Safari, although improved with Snow Leopard

17. Whats changing?

  • Mainstream options reducing the need for expensive assistive technology products
  • Windows 7:
    • Full screen magnifier
    • Predictive text in on-screen keyboard
    • Works well on netbooks
  • Free screen readers: WebAnywhere, NVDA
  • Netbooks becoming 3G and touch-capable
  • Reliance on collaboration and the cloud
  • iPhone 3GS with VoiceOver now an option

18. Web development

  • World Wide Web Consortium (W3C) formed by Tim Berners-Leein 1992
  • Initially inaccessible as AT products couldnt read out graphics
  • Web Content Accessibility Guidelines 1.0 published in 1999, became definitive standard for web accessibility
  • 65 checkpoints across three Priority levels

19. WCAG 2.0

  • Original WCAG very HTML-specific, became rapidly outdated
  • In 2001, WCAG 2.0 working group formed
  • Shift in focus from developer code compliance to user task achievement

20. WCAG 2.0 controversy

  • Development process went for seven long years:
    • To Hell With WCAG 2: a frustrated Joe Clark felt that 165 pages for the easy to understand manual was too obscure, vague, and a backwards step
    • To Hell With Joe Clark by Martin Kliehm felt that WCAG 2.0 simplified the issues, provided achievable goals and better supported new web technologies

21. WCAG 2.0

  • Released in December 2008
  • Although WCAG 1.0 still used in Australia, 2.0 quickly adopted in US, EU
  • Based around four POUR design principles:
    • Perceivable (adjustable)
    • Operable (finding what you want)
    • Understandable (content)
    • Robust: (other technologies)

22. WCAG 2.0

  • Perceivable:
  • Provide text alternatives for non-text content.
  • Provide captions and alternatives for audio and video content.
  • Make content adaptable; and make it available to assistive technologies.
  • Use sufficient contrast to make things easy to see and hear.

23. WCAG 2.0

  • Operable:
  • Make all functionality keyboard accessible.
  • Give users enough time to read and use content.
  • Do not use content that causes seizures.
  • Help users navigate and find content.

24. WCAG 2.0

  • Understandable:
  • Make text readable and understandable.
  • Make content appear and operate in predictable ways.
  • Help users avoid and correct mistakes.
  • Robust:
  • Maximize compatibility with current and future technologies.

25. Application development

  • W3C also provides the Authoring Tool Accessibility Guidelines
  • ATAG 2.0 supports WCAG 2.0, but still in draft
  • Two parts:
    • PART A: Make the authoring tool user interface accessible
    • PART B: Support the production of accessible content

26. ATAG 2.0 (draft)

  • PART A: Make the authoring tool user interface accessible
    • Authoring tool user interfaces must follow applicable accessibility guidelines
    • Editing views must be perceivable
    • Editing views must be operable
    • Editing views must be understandable

27. ATAG 2.0 (draft)

  • PART B: Support the production of accessible content
    • Production of accessible content must be enabled
    • Authors must be supported in the production of accessible content
    • Accessibility solutions must be promoted and integrated

28. Online video

  • Most online video lacks accessibility features
  • Many arguments as to why its not possible
  • Perception and reality are different

29. Online video

  • The perception:
  • The technology cant support closed captions or audio description.

30. Online video

  • The reality:
  • Flash, Windows Media, Real, QuickTime and open standards all support closed captions.Internet Captioning Forum:http://ncam.wgbh.org/icf/tech.php
  • Only Windows Media doesnt support multiple audio tracks for AD, but Microsoft have released AMP to resolve this:http://www.codeplex.com/amp

31. Online video

  • The perception:
  • Its all too hard and time-consuming.

32. Online video

  • The reality:
  • CaptionTube: an easy way to caption YouTube clipshttp://captiontube.appspot.com
  • Captions can be saved back onto local machine, dont have to be put on YouTube
  • If uploaded to YouTube, captions can be translated in real-time to different languages

33. Online video

  • The perception:
  • Theres no point:hardly anyone is captioning online, and online audio description is like the Yeti: you hear about it but no one's ever seen it.

34. Online video

  • The reality:
  • BBC iPlayer now features both closed captions and audio description
  • In a nutshell: if TV shows are already captioned, it can be easily included online
  • HTML 5 info in Silvias presentation up next

35. AWARe

  • AWARe: Australian Web Access Review
  • 5 websites per month for testing
  • Answer some simple questions
  • MAA will take data to government, industry to create change
  • Forum to discuss access issues
  • http://www.aware.org.au

36. Addressing the issues

  • AWARe home page:

37. Addressing the issues

  • AWARe Participate section

38. Further information

  • Large collection of web resources:www.mediaaccess.org.au/newmedia
  • Advice is free
  • E-mail:[email_address]
  • Phone: (02) 9212 6242

Top Related