How to use the the real-time data of MES to do the Factory Flow Simulation

The DELMIA R2026xFD01 has one new enhancement for the Factory Flow Simulation as below:

Using a Manufacturing Execution System:

"You can simulate a factory flow based on real-time manufacturing data and modify them to optimize your production processes before they are implemented on the factory floor.

A Manufacturing System Execution (MES) software collects and records production data in real time from various sources on the factory floor such as machines and operators. This software increases visibility across the operation and helps you monitor the production."

I would like to know this capability can apply which scenario? Who has the experience or use case can guide me ?