PROBLEM TO BE SOLVED: To feedback useful learning history information to a learning history referring person.;SOLUTION: In response to a visualization request obtained from a client device through a network in a server, on the basis of time table information preset by the referring person, the presence/absence of learning history information is notified to the client device. In the client device, the presence/absence information is displayed, a cell on the time table is selected to specify a visualization range, and according to the information specified on the server side, the visualized information is generated and given to the client device.;COPYRIGHT: (C)2004,JPO&NCIPI
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