Product Purchase System, Product Purchase Method, a Storage Medium for Storing a Program for Executing the Product Purchasing Method, and a Server Used Therefor

摘要

A product purchase system using a network comprises a server connected to a network 1, a database 5 included in the server 2 for storing order sheet data for each user, means connected to the network 1 for updating the order sheet data via the network 1, means for inhibiting the updating of the order sheet data after a predetermined date, means for aggregating the order sheet data of all users by summing up the quantities of ordered products for each type of the ordered products to obtain aggregated data after the predetermined date, and means for fixing, as order data, the order sheet data for each user and the aggregated data after the predetermined date.