Sales data processing apparatus and sales data processing system

A point-of-sale terminal, comprising:

• a display screen integrated with a touch panel for receiving operator inputs;
• a barcode scanner configured to read barcodes on products and membership cards;
• a communication interface configured to connect to a server;
• and
• a processor configured to:
• receive customer identification information for identifying a customer in a sales transaction from the barcode scanner;
• receive commodity identification information for identifying a commodity in the sales transaction from the barcode scanner;
• based on the received customer identification, acquire privilege information from the server indicating a privilege associated with the customer for the purchase of a specified commodity;
• receive a privilege use instruction, via the touch panel, for declaring an intention by the customer to purchase the specified commodity using the privilege;
• and
• register the commodity in the sales transaction at a discounted price if the commodity is the specified commodity, the privilege use instruction declares the intention to purchase the specified commodity using the privilege, and the privilege associated with the customer satisfies a privilege condition set for the specified commodity.

A sales data processing system, comprising:

• a server storing privilege information indicating a privilege associated with a customer for the purchase of a specified commodity;
• and
• a sales data processing apparatus including:
• a communication interface configured to connect to the server;
• and
• a processor configured to:
• receive customer identification information for identifying the customer in a sales transaction;
• receive commodity identification information for identifying a commodity in the sales transaction;
• acquire privilege information from the server indicating the privilege associated with the customer for the purchase of the specified commodity;
• receive a privilege use instruction for declaring an intention by the customer to purchase the specified commodity using the privilege;
• and
• register the commodity in the sales transaction at a discounted price if the commodity is the specified commodity, the privilege use instruction declares the intention to purchase the specified commodity using the privilege, and the privilege associated with the customer satisfies a privilege condition set for the specified commodity.