| Acronym | Meaning |
| DCC | DCCUDigital Command And Control Unit |
| T/C | Temperature Compensating |
| MPI | Mission Payload Integration |
| PVA | Propellant Valve Actuator |
| POS | Position |
| GPL | Goal Processing Language |
| DECOM | Decommutate |
| HPOTP | High Pressure Oxidizer Turbopump |
| CWSU | Caution And Warning Status Unit |
| MCPS | Major Cost Proposal System |