There are included: a step for receiving, through communication, pieces of operation information each including (a) operating state information of a device and (b) user information for identifying a user, in association with each other； a step storing the pieces of the operation information received in the receiving into a first storage unit； a step for reading, from a second storage unit, behavior tendency information including, in association with each other, (c) operating state information of at least one device and (d) a predetermined user behavior tendency of the user； and a step for specifying the predetermined user behavior tendency which corresponds to the operating state information of at least one device, by searching the pieces of the operation information for the operating state information of at least one device which is included in the behavior tendency information.
