To improve customer satisfaction for on-demand printing.

A center server 18 having a designer data memory 44 in which data indicating a profile of each designer are registered (stored) is connected to a network 24. A user accesses the center server 18 from a user PC 12 or a store PC 22 to browse the profiles of the designers, select a preferred designer by himself/herself and request a design. The center server 18 also has a bid data memory 46 for storing bid list data indicating an item under bidding for which the user selects a designer by bidding. When a designer accesses the center server 18 from a designer PC 14 to browse the bid list and participate in the bidding, the center server 18 notifies the user of the bid, and the user requests the design of a preferred designer among the bidding designers.