| 摘要 |
A management server (5) manages usage rules in accordance with which terminals use contents, and includes a usage rule database (52), a parental control unit (56), a parental database (53), and a ticket producing unit (54). The usage rule database (53) stores usage rule information (13 &tilde& 14) that associates each user with the usage rules. The parental control unit (56) obtains, from a parent terminal (6), parental information (15 &tilde& 16) that is a request made by the parent terminal (6) for placing a restriction on content usage by a child terminal (7), and the parental database (53) stores the obtained parental information (15 &tilde& 16). On receiving, from the parent terminal (6), a content request made by a user of the child terminal (7) for content use, the ticket producing unit (54) adds a restriction shown in the stored parental information for the child terminal (7) to a usage rule shown in the stored rule information for the child terminal (7) to produce a new usage rule, produces a license ticket that permits content use under the new usage rule, and sends the license ticket to the parent terminal (6). |
