AvSim+ employs Monte Carlo Simulation Methods to estimate system and subsystem parameters such as unavailability, number of expected failures, production
capacity, costs etc. The process involves synthesising system performance over a
given number of simulation runs. Each simulation run in effect emulates how the
system might perform in real life, based on the input data provided by the user. The
input data can be divided into two categories – a failure logic diagram and
quantitative failure and maintenance parameters. The logic diagram (either a fault
tree or a network diagram in the case of AvSim+) informs the computer program
how component failures interact to cause system failures. The failure and
maintenance parameters inform the program how often components are likely to fail
and how quickly they will be restored to service. By performing many simulation
runs, the computer program can build up a statistical picture of the system
performance by recording the results of each run.
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