Model for unistroke writing time
Poika Isokoski · 2001
Unistrokes are a viable form of text input in pen-based user interfaces. However, they are a very heterogeneous group of gestures the only common feature being that all are drawn with a single stroke. Several unistroke alphabets have been proposed including the original Unistrokes, Graffiti, Allegro, T-Cube and MDITIM. Comparing these methods usually requires a lengthy study with many writers and even then the results are biased by the earlier handwriting experience that the writers have. Therefore, a simple descriptive model can make these comparisons easier. In this paper we propose a model for predicting the writing time for an expert user on any given unistroke alphabet thus enabling sounder argumentation on the properties of different writing methods. Keywords Modeling of motor performance, handwriting, pen input INTRODUCTION Unistrokes were introduced as a text input method for penbased user interfaces by Goldberg and Richardson in their 1993 paper [8]. Unistrokes are an alte...