A system member of a data processing system 1 operates a terminal 3 to connect a registration-site server 6, and inputs requirements including personal data. The registration-site server 6 creates customer data from the requirements and point data concerning points given, and registers the system member as a point member. The system member clicks an icon of "Side trip" on a point card registration-site at the terminal 3, to transfer the point data and shop code data from the registration-site server 6 to a server 5, so that shop data is automatically made. The terminal 3 is operated to connect the sever 5. Upon a request for shop search, the position of the shop for which the point member is registered is displayed with higher visibility corresponding to use frequency than other shops.