A scheme and a device for managing a user state and a plurality of terminal states on a presence server, and for automatically selecting an optimum terminal by using both the user state and the terminal states. The measuring points are formed by a primary vertical line, a primary horizontal line intersecting the primary vertical line at the optical center, a plurality of dots intersecting the primary lines and evenly spaced at a predetermined distance along the primary lines, a plurality of secondary lines intersecting one of the primary lines and evenly spaced between the dots therein. The platform is moved from an article feeding position to a non-feeding position. Note that each disambiguation technique is associated with a different set of constraints on memory references. Electrically conductive paths are formed in the substrate and electrically coupled between the electrically conductive tabs, the electrically conductive contacts, and the electrically conductive external bond terminals. Further, a user may specify that the second process display a list of actions which may be performed upon the selected item and allow the user to select an action from a list.