| Acronym | Meaning |
| ESDU | Event Storage And Distribution Unit |
| DYN | Dynamic |
| HSD | High Speed Data |
| NP | Neptunium |
| SPIDPO | Office (JSC) |
| MTO | Modification Task Outline |
| R&OA | Reliability And Quality Assurance |
| SDVF | Software DeveloPment And Verification Facilities |
| TGOWG | Teleoperator Ground Operations Working Group |
| IGV | Inlet GUide Valve/Vanes |