| 摘要 |
PROBLEM TO BE SOLVED: To posteriorly impart a special point not imparted in purchase of an article to a customer. SOLUTION: A purchase data storing memory is provided to store an article purchase data of each customer. For example, whether the special point not imparted in the purchase of the article is imparted or not is determined after a shop is closed, service points of the each customer are recalculated based on the article purchase data of the each customer stored in the purchase data storing memory when the special point is executed to be imparted, and an accumulated points managed customer by customer are updated based thereon. |
