Graph builder: constructing non-visual visualizations

McGookin, D. K. and Brewster, S. A. (2007) Graph builder: constructing non-visual visualizations. In: People and Computers XX — Engage, Proceedings of BCS HCI 2006, London, UK, 11-15 Sep 2006. Springer: London, UK, pp. 263-278. ISBN 9781846285882 (doi:10.1007/978-1-84628-664-3_20)

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This paper introduces a novel application called Graph Builder, which allows visually impaired people to interactively construct bar graphs using a force feedback device. We discuss the limitations of current technology to allow such interactive construction and explain why, in educational environments, such interactive construction is important. Evaluations of Graph Builder showed that users could construct graphs accurately. However results showed that a large number of ‘off-by-one’ errors occurred, where the bar was set either one unit too high or too low. Revisions to the mechanism to manipulate bars were made, and further non-speech audio feedback was added. A further evaluation showing that the proportion of ‘off-by-one’ errors had been reduced.

Item Type:Book Sections
Glasgow Author(s) Enlighten ID:Brewster, Professor Stephen and McGookin, Dr David
Authors: McGookin, D. K., and Brewster, S. A.
College/School:College of Science and Engineering > School of Computing Science

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
342381MULTIVIS 11: Multimodal Tools to allow blind people to create and manipulate visualisationsStephen BrewsterEngineering & Physical Sciences Research Council (EPSRC)GR/S86150/01COM - COMPUTING SCIENCE