| Acronym | Meaning |
| SPII | Shuttle Program Implementation Instruction |
| MBPS | Megabits Per Second |
| SCOS | Subsystem Computer Operating System |
| MDAC | McDonnell Douglas Astronautics Company |
| ML | PED Mobile Launcher Pedestal |
| H/T | Heat Treat |
| DEIS | Design Engineering Inspection Simulation |
| GCIL | Ground Control Interface Logic |
| IDD | Interface Definition Document(s) |
| MTBD | Mean Time Between Demand |