1. Testing and validating the model : Any simulation model must represent the system under study. This requires comparing a model with actual system validation process.
2. Designing of the experiment : It refers to controlling the conditions of the study, such as the variables to include. In this situations where observations are taken but the conditions of the study are not controlled.
3. Run the simulation model : The computer to get the results in the form of operating characteristics.
4. Evaluating the result : The simulation process is complete, then select the best course of action, otherwise make desired changes in model decisions variables.