| 摘要 |
PURPOSE: A business method of sales business using a coupon is provided to promote sales and increase benefits of a personal customer member by efficiently managing various discount coupons through the Internet. CONSTITUTION: The personal customer member receives a coupon accumulation storage(CC) by registering member information and a key card(KC), which is selected from credit cards of the personal customer member, to a main operating site operated by a main businessman(M). When the personal customer member buys goods or services from an offline shop(S), a POS(Point-Of-Sale) system of the offline shop reads information of the key card. The main server processes data by applying the information read by the POS system to the coupon accumulating storage.
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