The present invention relates to an e-commerce method of selecting a design desired by a consumer from a database in which the design of a designer is registered and selecting a manufacturer to manufacture a product through reverse auction. According to the present invention, the e-commerce method can provide a designer with profits from the easy sale of design and a manufacturer with the minimization of management risks for consumption prediction. In addition, a consumer can select a design that he/she wants and determine the price of a product.
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