| Acronym | Meaning |
| VDD | Version Description Document |
| UNCRYPT | Universal Cryptological Processor Training |
| MSL | Mission Simulation |
| TMP | Technical Manual Plan |
| MAINT | Maintenance |
| SIM | Subsystem Interface Unit |
| MESM | Mission Essential Subsystem Matrix |
| GAFC | General Airframe Change (tdc 71) |
| FFIB | Fuel Filter Impending Bypass |
| VIB | Vast Interface Bulletin (tdc 88) |