| 摘要 |
Organization definition information M 31 is stored in an organization definition information storage unit 31 , contents M 33 to be provided to a user is stored in a contents storage unit 33 and filter definition information M 22 which is sent from a filter definition information generation unit 22 is stored in a filter definition information storage unit 32 . A filtering execution unit 23 obtains information M 10 c on the contents, in which necessary information is stored, from the user, obtains filter definition information M 32 on the contents, specified by the information M 10 c, from the filter definition information storage unit 32 , obtains user's organization definition information M 31 , specified by filter definition information M 32 , from an organization definition information storage unit 31 , builds a filter, and executes filtering to the contents M 33.
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