A system comprising: a plurality of first servers; and an image forming device, including at least one of a scanner and a plotter, connectable to each of the first servers via a network, wherein each of the first servers includes: a control unit that transmits, to the image forming device in accordance with a request from the image forming device which includes at least region information indicating a geographical position where the device is installed and device information for identifying the device, Web content data including at least display information indicating an application for using at least one of the scanner and the plotter available to the image forming device related to the combination of the region information and the device information and indicating an application command causing the image forming device to execute processing in connection with the application, and the image forming device includes: a Web browser including a display control unit that performs control to display, on a display unit, a screen based on the Web content data received from the first server, and an executing unit that is provided by an application programming interface and requests the image forming device to perform processing in connection with the application related to the application command included in the Web content data by executing the application command in accordance with user's operation via the screen; and a processing executing unit that, based on a request from the Web browser, performs processing in connection with the application related to the request. a plurality of first servers; and an image forming device, including at least one of a scanner and a plotter, connectable to each of the first servers via a network, wherein each of the first servers includes: a control unit that transmits, to the image forming device in accordance with a request from the image forming device which includes at least region information indicating a geographical position where the device is installed and device information for identifying the device, Web content data including at least display information indicating an application for using at least one of the scanner and the plotter available to the image forming device related to the combination of the region information and the device information and indicating an application command causing the image forming device to execute processing in connection with the application, and the image forming device includes: a Web browser including a display control unit that performs control to display, on a display unit, a screen based on the Web content data received from the first server, and an executing unit that is provided by an application programming interface and requests the image forming device to perform processing in connection with the application related to the application command included in the Web content data by executing the application command in accordance with user's operation via the screen; and a processing executing unit that, based on a request from the Web browser, performs processing in connection with the application related to the request. a Web browser including a display control unit that performs control to display, on a display unit, a screen based on the Web content data received from the first server, and an executing unit that is provided by an application programming interface and requests the image forming device to perform processing in connection with the application related to the application command included in the Web content data by executing the application command in accordance with user's operation via the screen; and a display control unit that performs control to display, on a display unit, a screen based on the Web content data received from the first server, and an executing unit that is provided by an application programming interface and requests the image forming device to perform processing in connection with the application related to the application command included in the Web content data by executing the application command in accordance with user's operation via the screen; and a processing executing unit that, based on a request from the Web browser, performs processing in connection with the application related to the request.