By providing a network photograph service, prompt service can be provided to a customer without losing the advantages of easier understanding of where to access when placing an order and easier collective data management. A service center receiving an order of a printing service, and a minilab or a special laboratory spread across a plurality of places, are able to communicate through a network. A center server in the service center selects and assigns which photo-finishing laboratory will print the ordered picture, in response to order information transferred from a customer via the network. Thus, the printing processing can be carried out by a photo-finishing laboratory specified by the customer, instead of at the center server.