Predictive error behavior model of on-screen keyboard users
Siddharth Jain, Samit Bhattacharya · 2011
On-screen keyboards are becoming ubiquitous with increasing use in mobile devices and touch-screens. In this work, we present a novel predictive error model which relates accuracy of an on-screen keyboard user to a given layout using the distance between keys. The model is developed from empirical data with the aim to predict the error rate of a user from the layout specification alone. Our proposed model can be combined with the existing quantitative design approaches for designing keyboards having high text-entry speed and accuracy.