| Acronym | Meaning |
| M | Matrix |
| RSMM | Redundant System Monitor Model |
| MMAS | Material Management Accounting (Accountability) System |
| TBD | To Be Defined |
| IOA | Input/Output Adapter |
| RACS | Remote Automatic Calibration System |
| SOM | Standard Operating Manual |
| QDS | Quality Data System |
| OMRB | Operating Material Review Board |
| BS | Block Specification |