| Acronym | Meaning |
| ST | SimPlification Task |
| OSOP | Orbiter Systems Operating Procedures |
| PM | Power Management And Distribution |
| CRS | Course |
| SSFS | Space Shuttle Functional Simulator |
| MSI | Maintenance Significant Items |
| CIS | Communication Interface System |
| MORD | Mission Operations Requirements Document |
| TV | Thermal Vacuum |
| DI | Display Interface |