| Acronym | Meaning |
| MIA | Multiplexer Interface Adapter |
| POM | Pallet-Only Mode |
| VAA | Viewpoint Adapter Assembly |
| MOU | Memorandum Of Understanding |
| MOF | Manned Orbital Flight |
| HISAM | Hardware Initiated Standalone Memory |
| RTIF | Real-Time Interface |
| SUMS | Shuttle Upper Atmosphere Mass Spectrometer |
| HD | Highly Desirable |
| DCR | Design Certification Review |