Patent attributes
In an embodiment of the present invention, region definition data, which defines a touch region, is stored such that the touch region is associated with a display region that is displayed, as an input item to which a touch input can be made, on a display unit, the touch region being a region in which it is recognized that a touch input is made to the input item, the touch region is dynamically changed in accordance with a priority of the input item, control is performed such that at least the input item is displayed on the display unit and a touch input is made to the input item via a touch input unit by a user, and, when a position to which a touch input is made is within the changed touch region, it is determined that an input is made to the input item.