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