Published on in Vol 6 , No 4 (2019) :April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/13485, first published
.

1 Department of Computer Science, University of Saskatchewan, Saskatoon, SK, CA
2 Department of Industrial Design, Eindhoven University of Technology, Eindhoven, NL
*all authors contributed equally