To display appropriately the progress status for each processing device in one series of print operations so that the person in charge of each processing device may visually confirm the status. A management server transmits the processing information adapted to one series of print operations to any of the processing devices, collects the notification information notified from each processing device, generates the display data for displaying relevantly the progress status of each print operation and the process state of each processing device, and transmits the generated display data to each processing device. Each processing device acquires the display data transmitted from the management server, and displays and switches dynamically the progress status of the processing devices in linkage with a processing device selected from among a plurality of processing devices.