An information processing system includes an information processing device, a storage unit, a relay unit, and an update unit. The information processing device is an element of an information processing system. The storage unit stores integral information obtained by integrating information about the information processing device expressed as component information of the information processing system. The relay unit receives communication information including an update command for updating of the component information addressed to the information processing device, and transmits first communication information including the update command addressed to the information processing device and second communication information including the update command. The update unit receives the second communication information, and updates the integral information based on an update command included in the second communication information.