There are included: a processing-result-information-acquiring-unit that acquires, from each equipment, processing result information associating communication device identification information for identifying a communication device being installed corresponding to the equipment and processing request information regarding a processing request; a layout-information-acquiring-unit that acquires layout information associating, with each piece of the communication device identification information, area information indicating an area where the communication device indicated by the communication device identification information is installed; a proposal-information-acquiring-unit that acquires proposal information associating, for each type of area, a proposal condition and a proposed content; a determining-unit that determines, for each area, whether the proposal condition is satisfied or not, based on a plurality of pieces of the processing result information, the layout information, and the proposal information; and an output-control-unit that causes, when the proposal condition is satisfied, an output unit to output a proposed content associated with the proposal condition.