| Acronym | Meaning |
| PREVLV | Prevalve |
| RFP | Requirements And Formulation Phase |
| ECF | Equivalency Capability File |
| MTU | Master Timing Unit |
| R/S | RedundantSet |
| SRAG | Space Radiation Analysis Group |
| QDS | Quality Data System |
| GG | Gravity Gradient |
| MEA | Maintenance Engineering Analysis |
| BARB | Ballast Aerating Retrieval Boom |