Section 4.3.2 describes how to change Entity pictures. Section 4.3.3 describes how to add Resource pictures. Model 4-1 records cycle time, also. The Exercise has number of details, so be careful. The grade form is attached to help you review the details.
Exercise 4-4 is shown below
Two different part types arrive at a facility for processing. Parts of Type 1 arrive
with interarrival times following a lognormal distribution with a log mean of 11.5 hours
and log standard deviation of 2.0 hours (note that these values are the mean and standard
deviation of this lognormal random variable itself); the first arrival is at time 0. These
arriving parts wait in a queue designated for only Part Type 1's until a (human) operator is
available to process them (there's only one such human operator in the facility) and the
processing times follow a triangular distribution with parameters 5, 6, and 8 hours. Parts
of Type 2 arrive with interarrival times following an exponential distribution with mean
of 15 hours; the first arrival is at time 0. These parts wait in a second queue (designated
for Part Type 2's only) until the same lonely (human) operator is available to process
them; processing times follow a triangular distribution with parameters 3, 7, and 8 hours.
After being processed by the human operator, all parts are sent for processing to an automatic machine not requiring a human operator, which has processing times distributed as
triangular with parameters of 4, 6, and 8 hours for both part types; all parts share the same
first-come, first-served queue for this automatic machine. Completed parts exit the system. Assume that the times for all part transfers are negligible. Run the simulation for
5,000 hours to determine the average total time in system (sometimes called cycle time)
for all parts (lumped together regardless of type), and the average number of items in the
queues designated for the arriving parts. Animate your model, including use of different
pictures for the different part types, and use resources that look different for busy vs. idle.