Table below summarized the possible mode of operation of thevarious stage of an operation cycle.Movement of spreader/contr. Operation mode Trigger byMovement between clear height and final landing on vessel Manual/semi-automated QC operatorMovement between vessel & crane Manual/fully-automated AutoMovement over the wharf Manual/fully-automated AutoMovement between safety height and final landing on chassis Manual/semi-automated QC operator It shall be noted that these stages of operation are divided for illustration purposes only during actual operation there may not be obvious distinction between these stages of operation. During automatic operation, the transition between stages shall be smooth and safe and shall not cause discomfort to the QC operator.