PROBLEM TO BE SOLVED: To display a detailed attendance/leaving status of an attendance/leaving display target person.;SOLUTION: Acceptance means of an attendance/leaving display device 12 accepts at least one of a first instruction indicating deletion of identification information on a first user and biometric authentication information stored in first storage means predetermined from anyone other than an attendance/leaving display target person in advance, or new registration of biometric authentication information, and a second instruction indicating deletion of identification information on a second user and private information stored in second storage means predetermined from anyone other than the attendance/leaving display target person in advance, or new registration of private information. When a privilege corresponding to the accepted identification information is a first privilege, update means performs deletion of biometric authentication information stored in the first storage means or new registration of biometric authentication information according to the accepted first instruction, and when a privilege corresponding to the accepted identification information is a second privilege, the update means performs deletion of private information stored in the second storage means or new registration of private information according to the accepted second instruction.;COPYRIGHT: (C)2013,JPO&INPIT
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