Using analytic network process for evaluating mobile text entry methods

College

Gokongwei College of Engineering

Department/Unit

Industrial Engineering

Document Type

Article

Source Title

Applied Ergonomics

Volume

52

First Page

232

Last Page

241

Publication Date

1-1-2016

Abstract

This paper highlights a preference evaluation methodology for text entry methods in a touch keyboard smartphone using analytic network process (ANP). Evaluation of text entry methods in literature mainly considers speed and accuracy. This study presents an alternative means for selecting text entry method that considers user preference. A case study was carried out with a group of experts who were asked to develop a selection decision model of five text entry methods. The decision problem is flexible enough to reflect interdependencies of decision elements that are necessary in describing real-life conditions. Results showed that QWERTY method is more preferred than other text entry methods while arrangement of keys is the most preferred criterion in characterizing a sound method. Sensitivity analysis using simulation of normally distributed random numbers under fairly large perturbation reported the foregoing results reliable enough to reflect robust judgment. The main contribution of this paper is the introduction of a multi-criteria decision approach in the preference evaluation of text entry methods. © 2015 Elsevier Ltd and The Ergonomics Society.

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Digitial Object Identifier (DOI)

10.1016/j.apergo.2015.07.022

Disciplines

Industrial Engineering

Keywords

Text messaging (Cell phone systems); Keyboards (Electronics); Cell phones; Multiple criteria decision making

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