| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electronic commerce system which performs article (service) sale using coupon thickets. SOLUTION: The coupon tickets are sold via an electronic commerce using a communication means such as the Internet and when an article is purchased, the coupon tickets are used. The coupon tickets to which their term of validity is set are sold via the electronic commerce and the term of validity is changed under a certain condition. When an article is purchased, authentication processing accompanying settlement processing is not needed and the process load is lightened. Further, the frequency of transfer of a credit card number, etc., decreases, so the danger of a leak of secret items is reduced. Further, sales promotion on a coupon ticket vending site side is actualized.</p> |
