| 摘要 |
PURPOSE:To provide a POS system which calculates points according as how much a customer purchases and performs a deduction process for the purchaser or calculates a deduction rate or a deduced amount of money according to how much the customer purchases and performs a deduction process when the total points of the purchaser reach a specific value. CONSTITUTION:A checker type POS device 108 that a salesclerk operates and a self-check-out type POS device 109 that a purchaser operates by himself or herself are each provided with a means which calculates points or deduction rates (discount amount) by commodity units that customers purchased, classifications of commodities, or purchased amounts units and totalizes the points by the purchasers. When a total value reaches certain service points, a deduction process is performed and the service points are subtracted from the points that the customer has. In another way, the deduction process is performed at check-out time. The rate of points (points per certain amount of money) or the deduction rate, etc., is higher on the device 109 than on the device 108 and made higher in time zones at store busy time or slack time than at usual time. |
