BrailleType: Unleashing Braille over Touch Screen Mobile Phones

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BrailleType: Unleashing Braille over Touch Screen Mobile Phones

  1. 1. BrailleTypeUnleashing Braille over Touch Screen Mobile Phones
  2. 2. Touch Interfaces
  3. 3. pleasant
  4. 4. Tactile feedbackloss of tactile feedback
  5. 5. Loss of physical stability
  6. 6. Difficult to select targets
  7. 7. Complex interactions
  8. 8. Familiar and simple.
  9. 9. BRAILLETYPE
  10. 10. Less and larger targets
  11. 11. Familar layout
  12. 12. Simple structured Interaction
  13. 13. Speed andTimeouts
  14. 14. User Evaluation
  15. 15. 15 blind users
  16. 16. 24 to 68years old
  17. 17. All but twotext regularly
  18. 18. Only one had previous experience with touch screens mobiles
  19. 19. Practice phase10 to 15 minutesTwo users werenot able to writewith QWERTY(VoiceOver)
  20. 20. Erase wasunavailable
  21. 21. 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
  22. 22. VoiceOver BrailleType2.11 1.45
  23. 23. 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
  24. 24. VoiceOver BrailleType14.1 8.9
  25. 25. 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)
  26. 26. BrailleType simpleralbeit slowerUsers prefer simpler tofasterSeveral close targets andSplit-tapping were the mainerror causes
  27. 27. The FutureBrailleTabLong term study
  28. 28. BrailleTypeUnleashing Braille over TouchScreen Mobile Phones Hugo Nicolau hman@vimmi.inesc-id.pt
  29. 29. Extras
  30. 30. NAVTAP AND BRAILLETAP: NON-VISUAL TEXTING INTERFACESTiago Guerreiro, Paulo Lagoá, Pedro Santana, Daniel Gonçalves, Joaquim Jorge RESNA 2008

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