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Locating Widgets in Different Tactile Information Visualizations

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  • First Online:
Computers Helping People with Special Needs (ICCHP 2016)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 9759))

Abstract

Large tactile displays demand for novel presentation and interaction strategies. In this paper, different tactile view types and orientation tools are evaluated with 13 blind users. The study has shown that the different view types are usable for different tasks. Orientation can be kept best in view types with Braille output but these are often not sufficient for graphical tasks. The usage of planar orientation tools, such as structure region or minimap, need to be trained to allow for an efficient support of two-dimensional tactual exploration.

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Notes

  1. 1.

    Note that there are two images in each dialog, both without an alternative text.

  2. 2.

    Only these runs of eight tasks in which the subjects finished all the tasks were considered in the t-tests.

  3. 3.

    Rating scale was defined as: 0 = not located successfully, 1 = very difficult, 2 = difficult, 3 = medium, 4 = easy, 5 = very easy.

  4. 4.

    Subjects with mental model: average time = 40.4 s, average offset = 27.5 mm.

  5. 5.

    Subjects without mental model: average time = 65.9 s, average offset = 37.3 mm.

  6. 6.

    Note that for the image the task was only executed in layout view.

  7. 7.

    Rating scale was defined as: 0 = not helpfully, 1 = a little helpfully, 2 = helpfully, 3 = very helpfully.

References

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Acknowledgements

We thank all blind participants. The HyperBraille project was sponsored by the German Ministry of Economy and Technology (BMWi) under the grant number 01MT07004.

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Authors and Affiliations

  1. Institut Für Angewandte Informatik, Technische Universität Dresden, Dresden, Germany

    Denise Prescher & Gerhard Weber

Authors
  1. Denise Prescher
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  2. Gerhard Weber
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Corresponding author

Correspondence to Denise Prescher .

Editor information

Editors and Affiliations

  1. Institute Integriert Studieren, Universität Linz, Linz, Austria

    Klaus Miesenberger

  2. Rehabilitationswissenschaften, Technische Universität Dortmund, Dortmund, Germany

    Christian Bühler

  3. Masaryk University , Brno, Czech Republic

    Petr Penaz

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Prescher, D., Weber, G. (2016). Locating Widgets in Different Tactile Information Visualizations. In: Miesenberger, K., Bühler, C., Penaz, P. (eds) Computers Helping People with Special Needs. ICCHP 2016. Lecture Notes in Computer Science(), vol 9759. Springer, Cham. https://doi.org/10.1007/978-3-319-41267-2_14

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  • DOI: https://doi.org/10.1007/978-3-319-41267-2_14

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-41266-5

  • Online ISBN: 978-3-319-41267-2

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