POINT OF SALE SYSTEM FOR RETAIL HAVING AUTOMATIC INCLUSION OF PRICE REDUCTIONS IN A FLEXIBLE MANNER WHILE PROTECTING CUSTOMER DATA

摘要

The present invention comprises a sales terminal data processing device (2) including an input device (3) for recognizing an external customer identification code and identifying an article, and calculating a cost paid according to the function of the product identification indication A sales terminal process comprising a terminal device 1 and a data processing system 20 connected to a sales terminal data processing device by a data transmission network 12 composed of a first server 24 and a second server 21, / RTI Wherein the first server identifies a price discount associated with each article identifier and stores a set of price discount data each comprising a price discount data set identifier associated with a first internal customer identification code, The code may be matched to or calculated separately from the external customer identification code, the first server receiving the external customer identification code by the data transmission network, and using the external customer identification code, The discount data set is generated, and when the cost to be paid is calculated, the same is returned to the sales terminal data processing apparatus including the data. The second server is comprised of an article list containing customer data, the customer data is associated with a second internal customer identification code to generate item identification data from the list of the pools, and allowing access to the provider's customer data , The data being accessible by the data processing device (11) of the discount provider, the data being received from a discount provider specifying the price discount of the at least one article in the article list, To the first server storing the data as a set of price discount data and the set of price discount data stored in the first server to be associated with a first internal customer identification code, And the first internal customer identification code is generated from the second internal customer identification code. Only the second server and the sales terminal data processing device can access the first server.