PRODUCT SALES DATA PROCESSING SYSTEM, PRODUCT SALES DATA PROCESSING TERMINAL DEVICE, AND PRODUCT SALES DATA PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a product sales data processing system, and the like that can perform product sales data processing for each customer simultaneously and parallelly, and can curb cost rises at the time of initial introduction.SOLUTION: Coordination registration means of a register device is configured to update a coordination state between an individual terminal device and the register device as needed, in which the terminal device is configured to receive an instruction signal of a credit settlement transaction start from the register device, and the register device is configured to transmit sales data associated with a customer to the terminal device, and the terminal device receiving the sales data is configured to transmit settlement information and a credit inquiry authentication about a credit card read by card reading means to a credit settlement center, and transmit a transaction completion result received from the credit settlement center relative to the credit inquiry authentication to the register device, and credit settlement registration means is configured to register a credit settlement according to a transaction completion result received from the terminal device.