The final lesson states the boundary: this is deterministic inventory-position arithmetic.
highlighted = computed this step
Exact rule
The exact rule uses reorder point 10 and order quantity 12.
rule: order when position≤R
Constant inputs
The model assumes constant demand rate and constant lead time.
constant demand and lead time
Not modeled
It does not model service-level probability, lead-time uncertainty, lost sales, or demand forecasting.
outside scope: uncertainty and lost sales
Honesty note
This is deterministic constant-demand, constant-lead-time arithmetic only. It does not model service-level probability, lead-time uncertainty, lost sales, or demand forecasting.