Published on in Vol 7, No 2 (2019): February
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/12425, first published
.

1 Department of Service Design Engineering, Sungshin Women's University, Seoul, Korea, Republic of
2 Graduate School of Technology and Innovation Management, Hanyang University, Seoul, Korea, Republic of