DIFFERENTIAL PRODUCT SALE SERVICE PROVIDING METHOD WITH MULTIPLE PURCHASING GROUPS CHARACTERIZED BY PURCHASING PRICE SUGGESTED BY CONSUMERS

摘要

PURPOSE: A differential product sales service providing method dividing purchasing groups according to a desired price suggested by a purchaser is provided to sell products having different prices by dividing purchasers into two or more purchasing groups. CONSTITUTION: A server provides product information to a purchaser terminal, receives a desired purchase price from a purchaser, and participates the purchaser in the purchase of a product(S200,S300). The server makes a purchase contract, determines a reference price, and classifies the purchaser according to the satisfaction of transaction limitations(S400,S500). The server grants a product purchase right to a classified purchasing group(S600). The server transmits purchase-related information to the purchaser(S700). [Reference numerals] (AA) Start; (BB) End; (S100) Step of receiving products set by a seller; (S200) Step of providing product information to a purchaser terminal; (S300) Step of receiving a desired purchase price input by a purchaser and involving the purchaser in purchase of products; (S400) Step of making a purchase contract when transaction limitations are satisfied; (S500) Step of determining a reference price and classifying the purchaser into one of purchasing groups; (S600) Step of granting product purchase rights with different discount rates to the purchasing groups; (S700) Step of transmitting a purchase contract approval message, the reference price, and the discount rate of a product and a purchasing group to which the purchaser belongs;