Content management system, content management method, content management program and integrated circuit

摘要

In order to provide a content management system having regard to the time variation of interest, to manage the appropriate content, the content management apparatus according to the present invention (100B), the first content by the first user has, the first and metadata is attribute information for classifying the contents of 1, users other than the said first of the second content is a content having metadata is the same as the metadata, the user of the first Based acquisition unit that acquires information about the shared state between the second user is (301), the information about the shared state of the second content, the interest in the metadata of the second user and an interest level calculation unit that calculates the interest level is an index indicating the (106), the management unit on the basis of the degree of interest of said second user, to manage the content of the first and (304).