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Back of the Steering Wheel Interaction: The Car Braille Keyer

  • Sebastian Osswald
  • Alexander Meschtscherjakov
  • Nicole Mirnig
  • Karl-Armin Kraessig
  • David Wilfinger
  • Martin Murer
  • Manfred Tscheligi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7683)

Abstract

In this paper, we present a novel text input approach for car drivers: The Car Braille Keyer combines a keyer concept (defined as keyboard without an actual board) and the braille code (i.e. blind writing method) at the back of the steering wheel. This concept allows eyeless text input while driving and simultaneously leaving the hands on the steering wheel. We present a prototype of the Car Braille Keyer along with an expert evaluation and a user study. The prototype consists of two sets of three buttons each, both of which are fixed on the back side of the steering wheel (one on the left, the other on the right side). The six buttons are designed to match a braille character like they can be found in the braille language. This approach allows for entering a character or command with only a single input combination without the need to look at the keys. In our prototype we added visual output in the head up display (HUD) as well as auditive feedback to enhance the interaction. To evaluate the system, we performed a heuristic evaluation with five HCI experts. Based on their feedback, we iterated the design of the prototype and added a learning tool for interaction using the Car Braille Keyer. An initial user study with the iterated prototype and twelve participants showed a good overall usability (SUS score=73.75) as well as a good acceptance rate based on the Technology Acceptance Model (TAM).

Keywords

automotive user interface steering wheel braille keyer chorded keyboard acceptance user studies 

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References

  1. 1.
    Bangor, A., Kortum, P., Miller, J.: Determining what individual sus scores mean: Adding an adjective rating scale. Journal of Usability Studies 4(3), 114–123 (2009)Google Scholar
  2. 2.
    Barón, A., Green, P., Michigan, U.: Transportation Research Institute of Safety and usability of speech interfaces for in-vehicle tasks while driving: A brief literature review. Tech. rep., University of Michigan, Transportation Research Institute (2006)Google Scholar
  3. 3.
    Baudisch, P., Chu, G.: Back-of-device interaction allows creating very small touch devices. In: CHI 2009, pp. 1923–1932. ACM, New York (2009)Google Scholar
  4. 4.
    Braille, L.: Procedure for writing words, music and plain song using dots for the use of the blind and made available to them. Royal Institution of Blind Youth, Paris (1829)Google Scholar
  5. 5.
    Brooke, J.: Sus-a quick and dirty usability scale. Usability Evaluation in Industry 189, 194 (1996)Google Scholar
  6. 6.
    Davis, F.D.: Perceived usefulness, perceived ease of use, and user acceptance of information technology. MIS Quarterly 13(3), 318 (1989)CrossRefGoogle Scholar
  7. 7.
    Döring, T., Kern, D., Marshall, P., Pfeiffer, M., Schöning, J., Gruhn, V., Schmidt, A.: Gestural interaction on the steering wheel: reducing the visual demand. In: CHI 2011, pp. 483–492. ACM, New York (2011)Google Scholar
  8. 8.
    Engelbart, D., English, B.: A research center for augmenting human intellect. In: Proceedings of the 1968 Fall Joint Computer Conference, San Francisco, CA, vol. 33, pp. 395–410 (December 1968)Google Scholar
  9. 9.
    Enriquez, M., Afonin, O., Yager, B., Maclean, K.: A pneumatic tactile alerting system for the driving environment. In: PUI 2001, pp. 1–7. ACM Press, New York (2001)CrossRefGoogle Scholar
  10. 10.
    Gärtner, U., König, W., Wittig, T.: Evaluation of manual vs. speech input when using a driver information system in real traffic. In: Human Factors in Driver Assessment, Training and Vehicle Design. University of Iowa Public Policy Center, Iowa (2001)Google Scholar
  11. 11.
    González, I.E., Wobbrock, J.O., Chau, D.H., Faulring, A., Myers, B.A.: Eyes on the road, hands on the wheel: thumb-based interaction techniques for input on steering wheels. In: GI 2007: Proceedings of Graphics Interface 2007, pp. 95–102. ACM, New York (2007)CrossRefGoogle Scholar
  12. 12.
    Kern, D., Schmidt, A., Arnsmann, J., Appelmann, T., Pararasasegaran, N., Piepiera, B.: Writing to your car: handwritten text input while driving. In: CHI EA 2009, pp. 4705–4710. ACM, New York (2009)Google Scholar
  13. 13.
    Kun, A.L., Shyrokov, A., Heeman, P.A.: Spoken tasks for human-human experiments: towards in-car speech user interfaces for multi-threaded dialogue. In: AUI 2010, pp. 57–63. ACM, New York (2010)Google Scholar
  14. 14.
    Lyons, K., Starner, T., Plaisted, D., Fusia, J., Lyons, A., Drew, A., Looney, E.W.: Twiddler typing: one-handed chording text entry for mobile phones. In: CHI 2004, pp. 671–678. ACM, New York (2004)CrossRefGoogle Scholar
  15. 15.
    Murer, M., Wilfinger, D., Meschtscherjakov, A., Osswald, S., Tscheligi, M.: Exploring the back of the steering wheel: Text input with hands on the wheel and eyes on the road. In: AUI 2012. ACM (2012)Google Scholar
  16. 16.
    Nielsen, J., Molich, R.: Heuristic evaluation of user interfaces. In: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems: Empowering People, pp. 249–256. ACM (1990)Google Scholar
  17. 17.
    Noder, S.: Talking and texting while driving: A look at regulating cell phone use behind the wheel. Val. UL Rev. 44, 237–1243 (2009)Google Scholar
  18. 18.
    Osswald, S., Meschtscherjakov, A., Wilfinger, D., Tscheligi, M.: Steering wheel-based interaction: Potential reductions in driver distraction. In: International Joint Conference on Ambient Intelligence, AmI 2011 (2011)Google Scholar
  19. 19.
    Pfeiffer, M., Kern, D., Schöning, J., Döring, T., Krüger, A., Schmidt, A.: A multi-touch enabled steering wheel: exploring the design space. In: CHI EA 2010, pp. 3355–3360. ACM, New York (2010)Google Scholar
  20. 20.
    Romero, M., Frey, B., Southern, C., Abowd, G.D.: Brailletouch: designing a mobile eyes-free soft keyboard. In: MobileHCI 2011, pp. 707–709. ACM, New York (2011)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Sebastian Osswald
    • 1
  • Alexander Meschtscherjakov
    • 1
  • Nicole Mirnig
    • 1
  • Karl-Armin Kraessig
    • 1
  • David Wilfinger
    • 1
  • Martin Murer
    • 1
  • Manfred Tscheligi
    • 1
  1. 1.CD Laboratory, ICT&S CenterUniversity of SalzburgSalzburgAustria

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