A Zoomable User Interface for Presenting Hierarchical Diagrams on Large Screens

  • Authors:

  • Christian Geiger;Holger Reckter;Roman Dumitrescu;Sascha Kahl;Jan Berssenbrügge

  • Affiliations:

  • Düsseldorf University of Applied Sciences, Düsseldorf, Germany;Harz University of Applied Sciences, Wernigerode, Germany;Heinz Nixdorf Institute / University Paderborn, Paderborn, Germany;Heinz Nixdorf Institute / University Paderborn, Paderborn, Germany;Heinz Nixdorf Institute / University Paderborn, Paderborn, Germany

  • Venue:
  • Proceedings of the 13th International Conference on Human-Computer Interaction. Part II: Novel Interaction Methods and Techniques
  • Year:
  • 2009

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Abstract

We present the design, implementation and initial evaluation of a zoomable interface dedicated to present a large hierarchical design model of a complex mechatronic system. The large hierarchical structure of the model is illustrated by means of a visual notation and consists of over 800 elements. An efficient presentation of this complex model is realized by means of a zoomable user interface that is rendered on a large Virtual Reality wall with a high resolution (3860 x 2160). We assume that this visualization set-up combined with dedicated interaction techniques for selection and navigation reduces the cognitive workload of a passive audience and supports the understanding of complex hierarchical structures. To validate this assumption we have designed a small experiment that compares the traditional visualization techniques PowerPoint and paper sheets with this new presentation form.