| 摘要 |
A provider managed top-down auction system optimized to material industry products is provided to offer an auction style, which is optimized to a material industry such as steel, paper and drug, for Enabling Contract Price Is Determined by provider leading while dropping a price from the top price set by a seller at predetermined time intervals. A user authenticator(21) authenticates a buyer and the seller by managing and registering buyer/seller information including class/type discrimination information to a user information database(25). An article register(22) assigns bidding qualification to the buyer by receiving an auction condition from the authenticated seller and registers an auction article to an auction information database(26) by receiving auction article/progress information from the seller. An auction progressing unit(23) determines a successful bidder and bid by progressing the auction while periodically dropping the price from the top price from the bottom price of the registered auction article according to the auction progress information. A successful bid processor(24) processes payment for the knock-down article.
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