| 摘要 |
PROBLEM TO BE SOLVED: To provide a network shopping system which contributes to prevention against an omission of article purchase and an unnecessary mispurchase. SOLUTION: Information on a device that each customer has is stored in a DB 251. In a relative article DB 257, main bodies and options or articles, etc., which tend to be used at the same time, i.e., mutually relative articles, are stored while being made to correspond to each other. When a user inputs personal identification information for authentication in online shopping, retrieval from the DB 251 is carried out to specify the device that the user has. Then the relative article DB 257 is accessed to retrieve and recommend relative articles to the user. |
