Answer: The Diagram / Simulator interface (Special Menu > Diagram / Simulator Interface) displays the list of components existing in both environments. Across from each one, an "X" in the "diagram" box indicates that it is present in the diagram editor, and an "X" in the simulator box indicates that it is present in the simulator. You can easily check whether your model is described consistently in both environments. Note: Some diagram editor components do not have any equivalent in the simulator (the texts, the balances, and the utilities) and the process-points and the exchange processes are differentiated in the diagram editor but not in the simulator.