Knobology Revisited: A Comparison of User Performance between Tangible and Virtual Rotary Knobs


Simon VoelkerKjell Ivar ØvergårdChat WacharamanothamJan Borchers






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Abstract
We present an experimental comparison of tangible rotary knobs and touch-based virtual knobs in three output conditions: eyes-on, eyes-free, and peripheral. Twenty participants completed a simple rotation task on a interactive surface with four different input techniques (two tangibles and two virtual touch widgets) in the three output conditions, representing the distance from the locus of attention. We found that users were in average 20% faster using tangible knobs than using the virtual knobs. We found that tangible knobs retains performance even if they are not in the locus of attention of the users. We provide four recommendations of suit- able choosing knobs based on tasks and design constraints.

Contact

If you are interested in Knobology Revisited, please contact Simon Voelker.


Publications

2015

Simon Voelker, Kjell Ivar Øvergård, Chat Wacharamanotham, and Jan Borchers. Knobology Revisited: A Comparison of User Performance between Tangible and Virtual Rotary Knobs. In ITS '15: Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces, pages 35–38, New York, NY, USA, November 2015. ACM. PDF Document BibTeX Entry.




Created by voelker. Last Modification: Tuesday 19 of December, 2017 12:21:52 by voelker.

Media Computing Group at RWTH Aachen

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