Modeling non-Expert Text Entry Speed on Phone Keypads Misc

Andriy Pavlovych, Wolfgang Stuerzlinger


For mobile phones, previous research has created models that can be used to predict expert performance. However, one important factor that influences the success of new interaction techniques is the users' initial experience with them. In this work, we present a new model to predict text entry speed on 12-button mobile phone keypads for novices. The model is based on Fitts' law, letter digraph probabilities, and a model of the mental processing time before key presses.

Date of publication: Nov - 2003
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