SYSTEM AND METHOD FOR SUPPLYING DIGITAL PURCHASE BENEFIT SERVICE AND PURCHASE INFORMATION USING PURCHASER INFORMATION CAPABLE OF BEING SHARED

摘要

PURPOSE: A system and method for supplying a digital purchase benefit service and purchase information using purchaser information capable of being shared is provided to recognize purchase information such as purchase tendency of a user using a payment unit including user identification. CONSTITUTION: An ID card(140) stores purchaser identification. A payment card includes the ID card(140) integrally or separately. A distribution company system(110) includes the payment card and an ID card reader. An intermediation system(120) exchanges data between the distribution company system(110) and a payment card company system(130), and calculates purchase information based on the data exchange. A communication network(150) connects the distribution company system(110), the intermediation system(120), and the payment card company system(130). A payment company(credit card company) delivers the ID card(140) to a member. The ID card(140) includes user information. The user information includes a sex, an age, a residential district, an occupation, earnings, and so on.