| 摘要 |
PROBLEM TO BE SOLVED: To promote the will of purchase by selecting a correspondent discount rate out of plural prescribed discount rates and displaying it based on the purchase amount data of customer for a fixed period in the past corresponding to the identification data of customer card. SOLUTION: An input means 100 reads the identification data of card storing the identification data of customer, and an operation processing means 200 fetches the identification data from the input means 100. Based on these identification data, the operation processing means 200 reads the purchase amount data of relevant customer from a storage device 300 storing the purchase amount data of customer for the fixed period in the past, selects the correspondent discount rate out of plural discount rates decided in advance and displays this discount rate on a display means 400. Thus, when nothing is newly purchased or the purchase amount is a little, the discount rate is decreased but when merchandise is purchased and the total purchase amount is increased, the discount rate is increased so that the purchase will of customer can be promoted. |
