In the hand simulation of the simple processing system, suppose that the queue discipline were changed so that when the drill press becomes idle and f nds parts waiting in queue, instead of taking the f rst one, it instead takes the one that will require the shortest processing time (this is sometimes called an SPT queue discipline). To make this work, you’ll need to assign a second attribute to parts in the system when they arrive, representing what their service time at the drill press will be. Redo the hand simulation. Is this a better rule? From what perspective?