Information management system retrieving recorded information version from server-side or duplicate local-side information storage

摘要

An information management system records in a server contents that need not be updated for a fixed time-period. The system accesses desired contents in a local device or the server storing the contents. A request for information is made from an information browsing unit to a local request relaying unit which receives the request and analyzes the request contents. The local request relaying unit acquires a server-side control file managed by the server to which the request is directed and also acquires a local-side control file from a duplicate information storing unit. Confirmation is made as to whether the latest version of the requested information exists in the duplicate information storing unit. If the latest version of the requested information exists in the duplicate information storing unit, the requested information is fetched from the duplicate information storing unit; otherwise the information is fetched from the server computer.