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

Pradipta Biswas (Research Associate, Department of Engineering, Engineering Design Centre, University of Cambridge, Cambridge, UK)
Pat Langdon (Senior Research Associate, Department of Engineering, Engineering Design Centre, University of Cambridge, Cambridge, UK)

Journal of Assistive Technologies

ISSN: 1754-9450

Article publication date: 16 September 2011

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.

Keywords

Citation

Biswas, P. and Langdon, P. (2011), "Investigating the gravity well algorithm to help in pointing in electronic interfaces by motor‐impaired users", Journal of Assistive Technologies, Vol. 5 No. 3, pp. 112-122. https://doi.org/10.1108/17549451111173460

Publisher

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Emerald Group Publishing Limited

Copyright © 2011, Emerald Group Publishing Limited