In order to provide a content management device that manages content appropriately by giving consideration to changes in interests over time, this content management device (100B) comprises the following: an acquisition unit (301) that acquires first content possessed by a first user, metadata which is attribute information for classifying the first content, and the information of second content, which is content having the same metadata as the metadata of the first content, which relates to the sharing status between the first user and a second user other than the first user; a level of interest calculation unit (106) that calculates a level of interest which is an indicator showing interest in the metadata of the second user on the basis of information related to the sharing status of the second content; and a management unit (304) that manages the first content on the basis of the level of interest of the second user.
展开▼
