PROBLEM TO BE SOLVED: To provide a technique capable of managing customer information at holding an event and confirming the effect of the event.;SOLUTION: A coming customer management system managing customers coming to a shop or the like comprises: an event cost information referring means for referring to a cost generated by holding the event; a coming customer information acquisition means for acquiring coming customer information relating to the coming customer in the event; a calculation means for calculating the event cost per coming customer from the event cost information and the coming customer information; and means for displaying an alarm when the event cost per coming customer exceeds a prescribed value.;COPYRIGHT: (C)2004,JPO
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