Study and modeling of user errors for virtual scanning keyboard design

Authors:
Samit Bhattacharya;Debasis Samanta;Anupam Basu
Affiliations:
IIT Kharagpur, Kharagpur, India;IIT Kharagpur, Kharagpur, India;IIT Kharagpur, Kharagpur, India
Venue:
CHI '08 Extended Abstracts on Human Factors in Computing Systems
Year:
2008

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Abstract

Virtual scanning keyboards are text entry systems used by individuals with severe speech and motion impairments. In this paper, we present results of our empirical study on user errors for such keyboards. We also propose a computational error model and a method for evaluation of such keyboards taking errors into account. The work is aimed to help designers make appropriate choice from a large number of design alternatives with minimum user involvement.