Voluntary stop supports of video viewing for children

Video viewing with smartphones has health problems for children. In addition, rulemaking tendency for a use of smartphones is weaker than television in Japn. In this study, we propose a system to support voluntary stops of children in a video viewing context for video viewing problem of children. One of unique approach is to implement "once more" function for encouraging voluntarily stops of children. The child has interested in the video contents during a certain time. The parent preferred to use our system because the system provides the snapshot of playing videos to the parents and limit the contents and the viewing time for children. We continue to improve on our system with user´s feedback, and plan to conduct evaluation experiment of the system again.