Consider an airport security system. Determine the system model considering that there are two classes of customers - regular and VIP (business, elite...), and considering the bag check, personal check, extra checking when something triggers it at the X-ray machine, etc. The objective of the simulation for such a system would be the delay experienced in the system. 1. Determine the system entities - draw a block diagram of the system 2. What are the main attributes of the system