Time-Shifted Co-Dining Communication: KIZUNA Design

For the people who are difficult to have a meal together with their families or close partners because of the time-zone difference or the life-rhythm difference, KIZUNA design is proposed that provides time-shifted co-dining experience.

The design includes the dining-speed synchrony by means of dining status recognition and comparison between in the video and on the table. Experimental study was conducted and found that the design improved communication and increased social presence.


  • Mamoun Nawahdah, Tomoo Inoue, Virtually dining together in time-shifted environment: KIZUNA design, Proc. of the 2013 ACM SIGCHI Conference on Computer Supported Cooperative Work (CSCW'13), pp.779-788, 2013.
  • Yuichiro Otsuka, Mamoun Nawahdah, Tomoo Inoue, Development of KIZUNA system capable of time-shifted co-dining communication, IEICE Technical Report, Vol.112, No.75, pp.85-90, 2012.

interaction Lab. 2016