Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

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I. Hartmann, M. Schirmer, F. Echtler
BinarySwipes: Fast List Search on Small Touchscreens
Proceedings of Mensch Und Computer 2019 (bib)

Smartwatches and other wearables generally have small screens, thereby complicating touch-based interaction. Selection from a long list, e.g. to locate a contact or a music track, is particularly cumbersome due to the limited interaction space. We present BinarySwipes?, an interaction technique based on binary search which is designed to speed up list search tasks on space-constrained screens. We evaluate a prototypical implementation of BinarySwipes? on a smartwatch. Results from our evaluation with 21 participants show improved performance over a plain linear search on lists with 100, 200 and 500 entries, but also increased mental load on the users.
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