| Acronym | Meaning |
| FIL | Filament |
| FQI | Flight Qualification Instrumentation |
| FSS | Flight Support Structure |
| OF | Operational Instrumentation MDM-FWD |
| CIS | Communication Interface System |
| STSOPO | Shuttle Transportation Systems Operations Program |
| FCMU | Foot Controlled Maneuvering Unit |
| MRR | Mission Reconfiguration Request |
| PSS | Pad Safety Supervisor |
| ORD | Orbital Requirements Document |