| 摘要 |
A vendor system, accessible via a cellular phone network, WiFi or wired network responds to purchase inquiries with iterative pricing. If an initial offer is declined, the vendor system can initiate a series of interactions with a customer to help determine a follow-up price for the same or a related product (or product bundle). The customer interface is provided by a self-service front end, while price determinations are made by a virtual customer service representative using a rule-based expert system. Once an offer is accepted, an order is placed.
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