| Acronym | Meaning |
| OI | Operational Instrumentation |
| MP | Management Package |
| VAST | Versatile Avionics System Tester |
| PPS | Pneumatic Power Subsystem |
| DDT&E | Design |
| RCC | Range Commanders Council (DOD) |
| INTERCHANGE | Interchangeability And Replacement |
| MSOB | Manned Spacecraft Operations Building (O&C Preferred) |
| SSR | Station Set Requirement |
| TSR | Technical Status Review |