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Converging research towards AccessForAll

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  • Transcript

    • 1. Research convergence to enable accessibility to be customised for individual users Liddy Nevile La Trobe University Australia
    • 2. Ideas …
      • Concepts behind AccessForAll
        • personal choice of adaptation
        • accessibility for everyone
        • discovery of what “I” need
        • interoperability
      • Approaches to accessibility
        • universal design and/or
        • distributed and cumulative metadata
    • 3. AccessForAll Accessibility
      • What do we want to achieve?
      • Flexibility with respect to resources and services so everyone can use them as they choose.
      • Let’s see what TILE does: http: //inclusivelearning .ca/tile/
    • 4. TILE
      • E-learning environment that enables learner-centric transformation of learning content and delivery
          • Authoring support for transformable content and Metadata
          • Browser
          • Learning Object Repository
          • Learner Preference System
    • 5.  
    • 6.  
    • 7.  
    • 8.  
    • 9.  
    • 10.  
    • 11.  
    • 12.  
    • 13. So what’s happening?
    • 14. DRD metadata
    • 15. In fact, ……
    • 16. TILE is …
      • A centralised system
      • All resources are digital
      • All resources standards compliant
      • All resources are ‘atomic’
      • All resources are appropriately described
    • 17. Digital resources (Microsoft research)
    • 18. Digital resources (Microsoft research)
    • 19. AfA definition of accessibility
      • the accessible relationship between the user and the resource enables the user to make sensory and cognitive contact with the content of the resource.
      See http://www. imsglobal .org/accessibility/
    • 20. Sensory needs and preferences
      • I can’t see now
      • I like Braille but screen-reading is OK
      • I can’t see well now
      • I may have an epileptic seizure if I see flashing
      • I read (Braille) slowly and may need extra time
      • Note - no mention of disabilities!
    • 21. Relationship Descriptions
      • So how do we describe sensory and other accessibility needs and preferences for digital resources?
      • We have opted for display , control and content as the three relationships that can be affected and can change.
    • 22. Adapting to all devices & contexts
    • 23. Adaptive technologies
      • Some replace standard technologies and some have special requirements.
      • Many have features users like to use.
      • In addition, there may be requirements for other display characteristics, and there may be separate needs for content adjustment.
    • 24. Adaptive technologies
      • Some requirements can conflict, eg an on-screen keyboard and a ‘full-screen’ resource.
      • For this reason, descriptions of needs and preferences for display, control and content characteristics need to be separated.
    • 25. Needs and preferences
      • Some people can choose between several alternative resources
      • Some people can use only one
    • 26. Multiple PNPs
      • Descriptions of users needs and preferences (PNPs) will be used according to the context or circumstances and may differ according to the occasion.
      • PNPs may be personal, situational, contextual, etc.
      • PNPs should be stored and available any time, anywhere.
    • 27.
      • Accessible resource components
        • in general this means WCAG compliance
        • BUT …..
      • resources may be distributed
      • resources may be produced ‘just in time’
      Dependencies
    • 28. What else is happening?
      • IMS and Dublin Core and IEEE/LOM and CEN ISSS/LT and INCITS/V2 and W3C and ISO JTC1 SC …. and
    • 29. Metadata is …
      • Structured, machine-readable information about resources
        • (data about data)
      • Used when Google can’t help…
      • Human-input is valued
      • but interoperability is not implied….
      • And now it might be tagging as well….
    • 30. Personal Needs and Preferences (PNPs)
      • Display:
        • how resources are to be presented and structured,
      • Control:
        • how resources are to be controlled and operated, and
      • Content:
        • what supplementary or alternative resources are to be supplied.
    • 31. Display preferences
      • Where the person can’t see text, it may need to be transformed into another mode - auditory or tactile (Braille).
      • Text may need to be bigger and a different colour.
      • Images may need to be bigger.
    • 32. Control preferences
      • Some assistive technologies effectively replace the typical mouse and keyboard combination without any adjustment
      • but others use technologies that require special configuration.
      • An on-screen keyboard will use screen space e.g.
    • 33. Content preferences
      • A dyslexic person may need additional images to avoid excessive text density
      • a ‘foreigner’ may need an alternative language
      • a eyes-busy person may need a text description of an image.
    • 34. Digital Resource Description (DRDs)
      • Display:
        • how the resource can be presented and structured,
      • Control:
        • how the resource can be controlled and operated, and
      • Content:
        • what supplementary or alternative resources are supplied with the resource.
    • 35. Basic DRD metadata includes:
      • Access Mode: vision, hearing, touch, text
      • Access Mode Usage: informative or ornamental
      • Display: amenability of a resource to transformation of the display
      • Control: how the method of control is flexible
      • Alternatives: any known alternatives
    • 36. and, where appropriate,
      • Components: any parts that make up this resource (a sound file, an image, etc.) or a composite resource of which it is a part
      • Hazards: any dangerous characteristics
      • Support tools: electronic tools associated with the resource (calculator, dictionary, etc.)
    • 37. & DRD for alternatives also includes:
      • Identity of the original resource
      • Type: kind of alternative
      • Extent: extent of coverage of original resource
      • Detailed description of the alternative: description of its characteristics necessary for matching it to details of the PNP.
    • 38. AfA is an approach … PNP DRD  Dlfkng fg jhgj fglhk fgh Rt hrtj hlkjg hklj thkkj tt Rt grlkthklj thk thl kjrthk Rthnk tlhkk jthk rth th lrt Framework PNP DRD
    • 39. Resource metadata
    • 40. With abstract models …
    • 41. The conversations flow …
    • 42. Multi-lingual/multi-cultural
      • Definition of languages and cultures
      • etc….
    • 43. Accessibility of events and places, ….
      • Location-based
        • Location dependent
        • Location independent
      • What divisions?
        • Physical needs?
        • Electronic needs?
    • 44. Thank you!
      • To participate, please contact me…
        • [email_address]
        • [email_address]
      • Check the new standards and work at
        • http://dublincore.org/groups/access