ELECTRONIC COUPON SYSTEM, IDENTIFICATION INFORMATION DISPLAY METHOD, CONTRIBUTION LEVEL CALCULATION METHOD, INFORMATION TERMINAL, IDENTIFICATION INFORMATION DISPLAY PROGRAM, CONTRIBUTION LEVEL CALCULATION PROGRAM, ELECTRONIC COUPON PROCESSING APPARATUS, AND ELECTRONIC COUPON PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an electronic coupon system capable of displaying a tree for promoting the easier discovery of good consumers, thereby studying the method of more effectively distributing electronic coupons.

SOLUTION: The electronic coupon system adds identification information for specifying users to electronic coupons every time electronic coupons are distributed among users, and when the electronic coupons are used, the identification information added to the electronic coupons is acquired as a distribution history of the electronic coupons distributed among the users. The acquired distribution history is displayed in a tree form. Further, a fixed value is given to a user who makes a purchase using a coupon as a contribution level to a shop. A fixed ratio is given from the fixed value to a user relating to the distribution of coupons. A result adding contribution levels of all the transactions of the electronic coupons is described together with said tree display.

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