FlexSim is a 3D simulation modeling software that uses statistical analysis and 3D visualization to help engineers and decision makers improve their processes. It allows users to test "what if" scenarios in a virtual environment to make smarter decisions in the real world. Simulation provides accurate results by accounting for complex, interrelated actions and random behavior that occur in real-world scenarios. FlexSim can help identify areas for improvement and solve problems in production, logistics, and healthcare systems.