The parameters of the simulation experiment are all obtained through a large number of previous experiments. The purpose of simulation experiment is to save raw materials, and at the same time, the results of simulation experiment can be compared with the results of real experiment, and the correctness of various theorems and laws summarized from the experiment can be tested.

Simulation, that is, the uncertainty specific to a specific level is transformed into their impact on the target by using the project model, which is manifested at the overall level of the project simulation project. The project simulation uses computer model and specific level of risk estimation, and generally uses Monte Carlo method for simulation.