| Acronym | Meaning |
| LLS | Launch And Landing Site |
| TIM | Time Interval Monitor |
| PFTA | PaY[oad Flight Test Article |
| LDEF | Long Duration ExPosure Facility |
| MWPR | MMWPRMonthly Work Package Report |
| LIMS | Logistics Inventory Management System |
| MIS | Mission Information Subsystem |
| SECS | Shuttle Events Control |
| IWBS | Indirect Work Breakdown Structure |
| RPV | Remotely Piloted Vehicle |