| Maximal production rate |
| Continuous time and finite state Markov process |
| System state |
| Stochastic process of machine states |
| Set of system modes |
| Set of admissible production capacities for each |
| Transition matrix |
| Probability limit |
| Discount rate |
| Instantaneous cost |
| Total cost function |
| Optimal inventory level of product type j |
| Inventory cost |
| Shortage cost |
| CM cost |
| LOTO cost |
| Operation cost under CM at state |
| Rate of transition from state to |
| CM rate without human error (CM - WOHE) with demand d1 |
| CM rate with human error (CM - WHE) with demand d1 |
| CM rate without human error (CM - WOHE) with demand d2 |
| CM rate with human error (CM - WHE) with demand d2 |
| Increment of the variable x |
| Value function of inventory x |
| Approximation of the value function for increment |