Elevator SMART D. S. S (Destination Selecting System) is a special elevator operation system which allocates elevator when registering destination floor at elevator hall. Efficient floor arrangement of D. S. S saves 35% energy, reduces waiting time and increases building security. SMART D. S. S of HYUNDAI ELEVATOR is an innovative product which reduces floor selection errors. SMART D. S. S divides high rise buildings into zones according to its use and displays involved floors when selecting applicable zone.