the biometric information master db 103 b the biometric information and the employee id is outputted to the update managing unit 106 the update managing unit 106 newly registers the biometric information and the employee id in the region based archive db 103 a stored in the storing unit 103 as a result the employee that has been authenticated by personal authentication by the third collation will be authenticated by personal authentication by the second collation even when the employee changes the affiliated store during the predetermined period therefore the employee is authenticated by personal authentication without having to enter the employee id the transmitting and receiving unit 206 in the server 20 1 receives the collation result from the transmitting and receiving unit 101 the transmitting and receiving unit 206 outputs the collation result to the collation result judging unit 207 then the collation result judging unit 207 judges whether the biometric information matching the biometric information of the employee is registered in the biometric information master db 103 b as a result of the third collation step s 113 as a result if the collation result is that the biometric information is registered yes at step s 113 the result of the third collation indicates that the employee has been authenticated by personal authentication the collation result judging unit 207 notifies the attendance information generating unit 205 of the employee id the biometric information that is received with the employee id is outputted to the update managing unit 208 the update managing unit 208 newly registers the outputted biometric information in the biometric information local.