To easily confirm whether an attendant attends or leaves and to record the confirmation result.
When the 2D code ID of a two-dimensional bar code added to the invitation card that an attendant shows is obtained in a step S21, it is decided in a step S22 whether or not the 2D code ID is registered; when it is registered, it is decided in a step S22 whether or not an attendance flag is set to the individual information stored corresponding to the 2D code ID and when not, an advance to a step S25 is made to register the current date and time as attendance information and further sets the attendance flag (update the individual information) in a step S26. In a step S27, the confirmation of the attendance is displayed. Thus, the attendance is confirmed and the current date and time are recorded as the confirmation result.
IHARA KEIGO
REKIMOTO JIYUNICHI
SUEYOSHI TAKAHIKO
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