Title: Assistive typing technologies: a new method based on binary sequences

Authors: Luiz Augusto F. Dantas Da Costa; Rodrigo Bonacin; Rodolfo Ipolito Meneguette; Geraldo Pereira Rocha Filho; Vinícius P. Gonçalves

Addresses: Electrical Engineering Department, University of Brasília (UnB), Brasília, Federal District, Brazil ' CTI Renato Archer and UNIFACCAMP, Campinas, Brazil ' Computer Science Department, University of São Paulo (USP), São Paulo, Brazil ' Department of Exact and Technological Sciences, State University of Southwest Bahia (UESB), Vitória da Conquista, Brazil ' Electrical Engineering Department, University of Brasília (UnB), Brasília, Federal District, Brazil

Abstract: Users with severe motor difficulties may experience problems when interacting with traditional computing devices. This article addresses these problems by setting out a new method that involves interacting through binary sequences. A hardware and software system was designed based on this method. This system enables users to interact using binary movements that are triggered by clicking a single button. Comparative tests were carried out between the proposed method and Switch Control, an assistive technology embedded in iOS devices for the interaction of users with motor difficulties. In terms of typing speed, the results show that the proposed method proved to be more efficient in all the tested cases, and it was, on average, 22% more productive than the Switch Control.

Keywords: communication; binary sequence; assistive technology; simulation; motor disabilities.

DOI: 10.1504/IJCAT.2022.130290

International Journal of Computer Applications in Technology, 2022 Vol.70 No.2, pp.120 - 133

Received: 28 Oct 2021
Accepted: 12 Feb 2022
Published online: 17 Apr 2023 *

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