| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide effective price information for judging purchase of an article even for a user who uses a mobile terminal. <P>SOLUTION: A price information providing program uses a computer to compare: base price information on an article that an information gatherer who has a contract with a store or service provider registers; and price information on the article with which user price information on the article that the user registers is merged. Then the program provides price difference information between the price information on the article of at least an arbitrary store that the user registers and that of other stores, and further provides detailed price information at a user's request, thereby providing the effective price information for judging whether the user buys the article even for the user of the mobile terminal whose screen size is limited. <P>COPYRIGHT: (C)2004,JPO |
