An acquiring unit configured to connect via a network to a device management system that manages functions of devices, and acquire device management information based on which a device usable by a user and a function usable by the user among functions of the device are managed from the device management system; a generating unit configured to generate a WebAPI based on the device management information acquired, and generate a virtual device configured to respond to an access to the WebAPI in cooperation with the device; an informing unit configured to inform a terminal used by the user of information including how to access the WebAPI; and an accessing unit configured to access the device via the virtual device are provided.