| Acronym | Meaning |
| UPP | User Parameter Processing |
| PMS | Performance Management System |
| WUC | Work Unit Code |
| MOPS | Military Operations Phone System |
| TO | Operations Management (KSC Directorate) |
| EED | Electro (Electrical) Explosive Device |
| EVS | Equipment VisibilitY System |
| LA | Low Attitude |
| MTE | Maintenance Test Equipment |
| FRRID | Flight Readiness Review Item DisPosition |