| Acronym | Meaning |
| GOMS | GrGOMSGround Operations Management System |
| DY | Deputy Director (KSC Directorate) |
| TP&C | Thermal Protection And Control |
| INNER | GlideInner Glideslope |
| OV | Orbiter Vehicle |
| SS | Station Set |
| OT | Overti Me |
| PRSDS | Power Reactant Storage And Distribution System |
| EL | End Item |
| V/V | Validation And Verification (also V&V) |