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Investigating the gravity well algorithm to help in pointing in electronic interfaces by motor‐impaired users

Investigating the gravity well algorithm to help in pointing in electronic interfaces by... Purpose – The purpose of this paper is to design an adaptation algorithm to facilitate pointing in electronic interfaces by users with motor impairment. Design/methodology/approach – First, the algorithm was optimized using a simulator, then the algorithm was validated through a user study involving seven motor‐impaired and six able‐bodied users and three different pointing devices. Findings – The algorithm significantly reduces pointing time overall and most participants pointed quicker with the gravity well than without it. Originality/value – The adaptation algorithm can significantly reduce pointing time for both motor and situational impairment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Assistive Technologies Emerald Publishing

Investigating the gravity well algorithm to help in pointing in electronic interfaces by motor‐impaired users

Pradipta Biswas; Pat Langdon
Journal of Assistive Technologies , Volume 5 (3): 11 – Sep 16, 2011
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References (7)

Publisher
Emerald Publishing
Copyright
Copyright © 2011 Emerald Group Publishing Limited. All rights reserved.
ISSN
1754-9450
DOI
10.1108/17549451111173460
Publisher site
See Article on Publisher Site

Abstract

Purpose – The purpose of this paper is to design an adaptation algorithm to facilitate pointing in electronic interfaces by users with motor impairment. Design/methodology/approach – First, the algorithm was optimized using a simulator, then the algorithm was validated through a user study involving seven motor‐impaired and six able‐bodied users and three different pointing devices. Findings – The algorithm significantly reduces pointing time overall and most participants pointed quicker with the gravity well than without it. Originality/value – The adaptation algorithm can significantly reduce pointing time for both motor and situational impairment.

Journal

Journal of Assistive Technologies – Emerald Publishing

Published: Sep 16, 2011

Keywords: Human factors; Measurement; Assistive technology; Pointing; Adaptation; Gravity well; Programming and algorithm theory; Interactive devices

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