Abstract: To provide an information processing device management method contrived to improve operability by managing respective information processing devices via a network while eliminating any constraint in place for handling the management. A management device receives a request from an administrator terminal via the network, notifies the information processing device of a process responding to the request, acquires management data as a result of the process from the information processing device and transmits the management data to a requester administrator terminal, and the information processing device executes the process which the management device notifies of, generates the management data in a predetermined format on the basis of the result of the process, and transmits the management data in the predetermined format to the management device.