Importance

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Abstract

Each computer system of the computer network according to the present invention has a management information storage portion for storing information with respect to an access authority in accordance with an owner ID and a conversion rule storage portion for storing a rule for converting the formats of a user ID and an access authority. Each computer system adds a machine ID to a user ID and sends the resultant ID to another computer system when a remote access request is issued. In addition, the computer system determines whether or not the formats of the user ID and the access authority being received accord with those of a local computer system when a remote access is accepted. The computer system converts the formats of the user ID and the access authority being received into those of the local computer system in accordance with a predetermined conversion rule when the formats of the local computer system are not matched with those on the remote computer system. Thereafter, the computer system compares the user ID and the access authority whose formats have been converted with information of the access authority stored in the access authority storage portion and determines whether or not to execute the remote access.

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First Claim