| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic commerce method and system allowing the easy and accurate provision of materials of low cost and good quality even without business knowledge on the settlement of contract conditions and the specifications of the materials. SOLUTION: A Web server 41 of a center device 40 collects the respective trade terms of various materials from seller side terminals 11 of a plurality of material sellers 10-1-10-n through the Internet 30, selects the optimum material sellers of various materials by assessing the collected trade terms, and presents the selling terms of the selected optimum material sellers 10-1-10-n to buyer side terminals 21 of material buyers 20-1-20-m through the Internet 30. The material buyers 20-1-20-m purchase the desired materials through the Internet 30 on the basis of the selling terms presented on the Internet. |
