| Acronym | Meaning |
| DDAS | Digital Data Acquisition System |
| LETF | Launch Equipment Test Facility (KSC) |
| MSS | Maintenance Status System |
| OPR | Office Of Primary Responsibility |
| KBIM | Keyboard Interface Module |
| EVSS | Extravehicular Space Suit |
| SSFGSS | Space Shuttle Flight And Ground System Specification |
| PROM | Programmable Read-Only Memory |
| OCM | Organic Content Monitor |
| CM | Center Of Mass |