Honestly
Where the model is weakest for a manufacturer
Capacity is a single number: revenue a head can serve per month, starting at 21,000 dollars. That is a poor description of a factory. There is no bill of materials, no routing, no machine, no changeover, no shift pattern and no work in progress. If your question is about a bottleneck between two cells, or the effect of a changeover regime, this model cannot see it and a discrete event simulation can.
Inventory is not modelled as a buffer. Real manufacturers absorb months of disruption with stock, and a twin that does not carry it will make a supply shock look sharper and earlier than it will feel. Read the timing on a supply scenario as the shape of the event rather than the date of it.
The engine runs monthly, so anything that resolves inside four weeks is invisible. A two week outage, an expedited shipment, a short tooling failure: none of these have anywhere to live in the run.
And pass through starts as a single assumption applied across the book. In reality it differs by account and by contract clause. If your contracts have indexation terms, upload them, because that is the one thing that would materially change a supplier scenario.
- No shop floor: no routing, no machines, no changeovers, no bill of materials
- No inventory buffer, so shocks land earlier in the model than in the building
- Monthly steps, so short disruptions disappear
- Pass through is one number until your contracts say otherwise