What is the purpose of reviewing simulation output?

• A. To ensure the results closely approximate the real system performance
• B. To increase the speed
• C. To reduce the number of trials
• D. To avoid validation

Answer: (A)

Reviewing simulation output is about verifying that the results reflect how the real system would behave. After many trials, you inspect the estimated metrics—average outcomes, variability, and the spread of possible results—along with signs of convergence and stability across runs. This helps you judge whether the model’s assumptions are reasonable and whether the results are credible enough to inform decisions. If the output looks plausible and aligns with what you’d expect from the real system, you gain confidence in using the results; if not, you know you may need to refine the model or collect more data. This purpose is not about speeding up computation, reducing the number of trials, or avoiding validation.