PROBLEM TO BE SOLVED: To improve the degree of empathy for exchanged information in exchanging the information between users.;SOLUTION: An action sharing system comprises: a management server device 100 that collects information regarding actions of a plurality of users as setting information, matches users to other users on the basis of the collected setting information, and executes mediation processing for exchanging or sharing information such as messages between matched users as exchanged information; and a plurality of communication terminal devices 200 that transmit the setting information and the exchanged information to the management server device and receive the exchanged information of the matched users from the management server device.;COPYRIGHT: (C)2013,JPO&INPIT
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