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mobile and eyes free exploration of graphical information. Sina Bahram Prime Access Consulting @SinaBahram Sina@SinaBahram.com blog.sinabahram.com www.pac.bz. Ground Rules. Please ask plenty of questions … But don’t raise your hand!. My Background.

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mobile and eyes free exploration of graphical information

mobile and eyes free exploration of graphical information

Sina Bahram

Prime Access Consulting

@SinaBahram

Sina@SinaBahram.com

blog.sinabahram.com

www.pac.bz

ground rules
Ground Rules
  • Please ask plenty of questions
  • … But don’t raise your hand!

@SinaBahram

my background
My Background
  • Finishing up PhD in Computer Science (Human Computer Interaction) at North Carolina State University
  • Dissertation focuses on eyes-free exploration of graphical information
  • Passionate about high-tech startups, accessibility, and technology
  • Founder of Prime Access Consulting

@SinaBahram

eyes free interaction
Eyes-free Interaction
  • Traditional audio interface is linear
  • Shortcuts and other navigation hotkeys facilitate non-linear access
  • Semantic markup is key

@SinaBahram

desktop interaction screenreader
Desktop Interaction (screenreader)
  • Disconnect exists between eyes-free interface and visual presentation
  • This makes collaboration more difficult
  • Spatial information is hard to convey

@SinaBahram

mobile interaction
Mobile Interaction
  • Touch offers unique advantages
  • Facilitates eyes-free exploration of spatial layout
  • Facilitates collaboration between sighted and eyes-free users
  • Relies on concept of an access overlay

@SinaBahram

what is an access overlay
What Is An Access Overlay?
  • Invisible software layer that intercepts touch events
  • Provides explore functionality
  • Responds to particular gestures
  • Allows native gestures to still be performed (usually with a small modification)

@SinaBahram

@SinaBahram

thoughts on eyes free interaction
Thoughts on Eyes-free Interaction
  • Selection for sighted user
      • What you see is what you can touch
  • Selection for eyes-free user: Identification and selection are decoupled
      • Discover what can be selected (identification)
      • Activate desired item (selection)

@SinaBahram

eyes free exploration of graphical information
Eyes-free exploration of graphical information
  • How can we use what we’ve talked about to explore graphics such as maps?
    • Remember decoupling of identification and selection
  • Additionally, let’s introduce the concept of reduction of complexity
    • Gives the user control over how much information is available at any given time
    • Allows the users to change this easily

@SinaBahram

variable resolution discretization grid
Variable resolution discretization grid
  • Is an access overlay
  • Provides both absolute and relative addressing (e.g. “4 squares across five squares down” (absolute) or “one square to the right” (relative)
  • User can change the size of the grid (can therefore access more or less information)
  • Responds to various gestures

@SinaBahram

touch it key it speak it tikisi
Touch it, key it, speak it (TIKISI)
  • Uses a variable-resolution discretization grid to make Google maps accessible for eyes-free exploration
  • Is a multi-modal framework (speech, keyboard, and touch input)
  • Extensible to other domains
  • Being used to research why certain techniques work better than other for eyes-free exploration of graphical information

@SinaBahram

demo of tikisi
Demo of TIKISI

@SinaBahram

thoughts
Thoughts
  • Multi-modal facilitates greater access for all users, not just those with functional limitations
  • Access overlays are a powerful technique for facilitating access to touch interfaces
  • Touch offers unique advantages to facilitate eyes-free exploration of graphical information
  • Accessibility of rich graphics should not be limited to static labels

@SinaBahram

questions
Questions

@SinaBahram