| 摘要 |
PURPOSE: An EC(Electric Commerce) method discounting price according to repeated purchase of the same product is provided to buy goods at the discounted price in case of the repeated purchase of the same product such as computer supplies, and to easily buy the goods by confirming purchase record without searching the goods again. CONSTITUTION: The user logs in to a server computer. The user selects/inputs the goods from the product information provided by the server computer. Based on the inputted product information, the server computer checks that the user previously buys the same product(S31). In the case of the purchase for the same product, a discount ratio is decided. The price discounted by the discount ratio is suggested to the buyer(S34). The buyer buys the product at the discounted ratio.
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