| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a system which allows a seller and a buyer for determine a bidding price by holding a dialogue with each other through a network. SOLUTION: The seller presents an item to be sold in a file on an Internet chat system, that a service company presents. The buyer obtains information on the presented item through a dialogue format, and submits a bidding price and pays for the article.</p> |
