| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for performing settlement processing in accordance with identification information previously associated with credit card information of a customer, the system causing identification information to have extensibility so as to be capable of being used at a plurality of affiliated stores.SOLUTION: When a store terminal 2 transmits a customer ID, read from an IC tag 4 by a reader 2b, to a customer information management device 1, the customer information management device 1 extracts card information corresponding the customer ID while referring to a customer information storage part 11 so as to transit it to the store terminal 2. When the store terminal 2 transmits, to a credit information management device 3, together with a credit inquiry request, card information, credit inquiry information, and affiliated store identification information, the credit information management device 3 refers to the credit information storage part 31 and a transaction information storage part 32 so as to determine propriety of credit to a transaction based on card information, and transmits a determination result to the store terminal 2. When as a result of credit inquiry, the credit to the transaction is approved, adjustment of a settlement amount of a compensation to a commodity or a service provided to the customer is executed. |
