| Acronym | Meaning |
| TSM | Tail Service Mast |
| SSDD | Software System Design Document |
| TAP | Telemetry Acceptance Pattern |
| ESA | Explosive Safe Area (KSC) |
| LAIU | Launch Abort Interface Unit |
| GFE | Government Furnished Equipment |
| MDT | Mean Down Time |
| OTLC | Orbiter Timeline Constraints |
| PMIA | Parallel Multiplexer Interface Adapter |
| CCMS | Command Control And Monitor System |