There is a problem that update of a structure of an information group is complicated since it is impossible to effectively ask an administrator who manages other database whether the administrator approves update. In order to assure matching with a structure of an information group stored in a database which makes an update request, an update management system stores in a storage unit in advance, reference relationship information for identifying other database containing associated information which should be updated upon update of the structure of the information group stored in the database which has made the update request. The system judges whether the content of the update request relates to a structure update. If yes, other database containing an associated information group which should be updated to assure the matching is extracted. For the extracted database, it is judged whether update is enabled. The judgment result is sent to the database which has made the update request.
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