Evaluation of SpreadKey System with Motor Impaired Users

  • Bruno Merlin
  • Mathieu Raynal
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6180)


We recently presented a new soft keyboard: SpreadKey. The keyboard is based on a QWERTY layout and dynamically recycles the needless characters. The needless characters are determines by a predictive system in function of the previous input characters. The recycling aims at providing several times the characters with a high probability to be typed. This article resume the concept of SpreadKey and explain the experimentation we conduct to evaluate its. The experimental results show that SpreadKey is an interesting solution to assist motor impaired users (with motor impairment of the superior limbs) in the text input task.


Text entry Fitts’ law soft keyboard assistive technology 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Bruno Merlin
    • 1
  • Mathieu Raynal
    • 1
  1. 1.IRITUniversité Paul SabatierTOULOUSE CEDEX 9

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