Graph Builder: Constructing Non-visual Visualizations

  • David K. McGookin
  • Stephen A. Brewster
Conference paper

DOI: 10.1007/978-1-84628-664-3_20

Cite this paper as:
McGookin D.K., Brewster S.A. (2007) Graph Builder: Constructing Non-visual Visualizations. In: Bryan-Kinns N., Blanford A., Curzon P., Nigay L. (eds) People and Computers XX — Engage. Springer, London

Abstract

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.

Keywords

haptics visual impairment non-speech audio graph construction 

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Copyright information

© Springer-Verlag London Limited 2007

Authors and Affiliations

  • David K. McGookin
    • 1
  • Stephen A. Brewster
    • 1
  1. 1.Department of Computing ScienceUniversity of GlasgowGlasgowUK

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