| 摘要 |
An information processing system includes: a terminal device including a purchase information generating unit generating purchase information for relating a user who purchased a product to the purchased product, the purchase information identified by a predetermined identifier, a verification means generating unit generating verification means verifying correctness of the identifier, and a communication unit sending a purchase verification including the verification means and the identifier verified by the verification means to a terminal of the user; and an information processing device including a communication unit receiving word-of-mouth information entered by a user and a purchase verification when the word-of-mouth information involves it, a validation unit validating correctness of the identifier contained in the received purchase verification using the verification means, and a data holding unit holding purchaser word-of-mouth information having the identifier with correctness verified by the validation unit and non-purchaser word-of-mouth information as the word-of-mouth information other than the purchaser word-of-mouth information. |
