| 摘要 |
Operation of a publicly accessible purchasing system, including receiving, on a receipt date, from a purchaser in a publicly accessible purchasing system, a deferred purchase request ("DPR") for an item to be purchased; soliciting at least one bid from at least one vendor; receiving at least one bid from one or more bidding vendors; selecting a selected vendor, in dependence upon the at least one received bid; and issuing, in dependence upon the DPR, a purchase order to the selected vendor on a date subsequent to the receipt date. A DPR can include an instruction to solicit bids. A DPR can include an indication of a minimum number of bids to be solicited, the method further comprising terminating the DPR if the received bids number less than the minimum number of bids indicated by the bid number indication.
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