We propose a support system to create opportunities of communication in community of Japanese college students using Android phones and SNS. It is difficult to get to know a community member and to find an opportunity of communication with the member who is not a close friend even if he/she belongs to the same community. In our system, users register their interests freely in the form of tags and the system presents a list of the tags on the displays of their Android phones so as to trigger communication with each others. In addition, the users can always easily understand what a community member on campus takes interest in, by viewing the information of only log-on users displayed on the users’ Android phones. As a result of an experiment, it revealed that displaying a list of the log-on users’ information improved the motivation to try to find an opportunity of communication willingly. Furthermore, the form of tags was effective for the person who had high motivation for communication.
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