| Acronym | Meaning |
| PICRS | Program Information Control And Retrieval System |
| DP | Differential Pressure |
| SCA | Sequence Control Assembly |
| RAS | Requirements Allocation Sheet |
| FRCS | Forward Reaction Control System (Subsystem) |
| ODDS | Operational Data Delivery Services |
| RHS | Rocketdyne Hybrid Simulator |
| MOT | Motor |
| CSI | Crew Software Interface |
| PIECP | Preliminary Impact Engineering Change Proposal |