BrailleType: Unleashing Braille over Touch Screen Mobile Phones
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BrailleType: Unleashing Braille over Touch Screen Mobile Phones

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BrailleType: Unleashing Braille over Touch Screen Mobile Phones BrailleType: Unleashing Braille over Touch Screen Mobile Phones Presentation Transcript

  • BrailleTypeUnleashing Braille over Touch Screen Mobile Phones
  • Touch Interfaces
  • pleasant
  • Tactile feedbackloss of tactile feedback
  • Loss of physical stability
  • Difficult to select targets
  • Complex interactions
  • Familiar and simple.
  • BRAILLETYPE
  • Less and larger targets
  • Familar layout
  • Simple structured Interaction
  • Speed andTimeouts
  • User Evaluation
  • 15 blind users
  • 24 to 68years old
  • All but twotext regularly
  • Only one had previous experience with touch screens mobiles
  • Practice phase10 to 15 minutesTwo users werenot able to writewith QWERTY(VoiceOver)
  • Erase wasunavailable
  • 4.0 BrailleType3.5 VoiceOver3.02.52.01.51.00.50.0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Participants
  • VoiceOver BrailleType2.11 1.45
  • 45.0 BrailleType40.0 VoiceOver35.030.025.020.015.010.0 5.0 0.0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Participants
  • VoiceOver BrailleType14.1 8.9
  • Easy to Quickly write Would use this Easy to use. * comprehend. * text. system.BrailleType 5 (0) 5 (1) 3 (1) 3 (2)VoiceOver 4 (2) 4 (2) 4 (3) 3 (1) (Median, Inter-quartile Range)
  • BrailleType simpleralbeit slowerUsers prefer simpler tofasterSeveral close targets andSplit-tapping were the mainerror causes
  • The FutureBrailleTabLong term study
  • BrailleTypeUnleashing Braille over TouchScreen Mobile Phones Hugo Nicolau hman@vimmi.inesc-id.pt
  • Extras
  • NAVTAP AND BRAILLETAP: NON-VISUAL TEXTING INTERFACESTiago Guerreiro, Paulo Lagoá, Pedro Santana, Daniel Gonçalves, Joaquim Jorge RESNA 2008