A first step in simulating this process with SimQuick is to draw a flowchart of the process using SimQuick’s building blocks. SimQuick has five building blocks that can be combined in a wide variety of ways. Four of these types are used to model this process. An entrance is used to model the arrival of passengers at the security process. A buffer is used to model each of the two waiting lines, one before each type of inspection, as well as the passengers that have finished the process. Each of the four inspection stations is modeled with a workstation. Finally, the random selection of passengers for the second inspection is modeled with a decision point. Figure B.7 shows the flowchart.