Text size
  • Small
  • Medium
  • Large
Contrast
  • Standard
  • Blue text on blue
  • High contrast (Yellow text on black)
  • Blue text on beige

    Effect of Fidelity in Diagram Presentation

    People and Computers XXII
    Culture, Creativity, Interaction

    Proceedings of HCI 2008
    The 22nd British HCI Group Annual Conference
    Liverpool John Moores University, UK

    1 - 5 September 2008

    AUTHORS

    Louise Yeung, Beryl Plimmer, Brenda Lobb & Douglas Elliffe

    ABSTRACT

    The visual fidelity (fidelity) of a design diagram affects perception and design performance. Hand-drawn diagrams are more effective working documents for early design tasks such as user interface designs than the equivalent computer-prepared formal representation. However people prefer more formal representations because they feel that hand-drawn diagrams look unprofessional. Sketch-based design tools make it possible to present partially tidied designs. We have postulated intermediary levels of visual fidelity in a systematic manner and implemented these levels into a sketch tool to evaluate the effect of computerization and fidelity on perception and design performance. Our findings show that: performance decreased systematically with increased fidelity; that computer presented designs decreases performance and that performance was decreased by computerization of the hand-drawn diagrams. In contrast, user satisfaction was higher with increasing levels of fidelity. These results pose challenges to the sketch tools community and further questions for effective computer support for early design.

    PAPER FORMATS

    PDF filePDF Version of this Paper (642kb)

    HCI 2008: People and Computers XXII Culture, Creativity, Interaction (cover)

    Print copies of People and Computers XXII Culture, Creativity, Interaction (Vol. 1)
    ISBN 978-1-906124-04-5
    RRP £85

    Available from the BCS bookshop

    People and Computers XXII Culture, Creativity, Interaction (Vol. 2)
    ISBN 978-1-906124-06-9
    RRP £85

    Available from the BCS bookshop