| Acronym | Meaning |
| CVAS | Configuration Verification Accounting System |
| UTLM | Up Telemetry |
| GSSI | Ground Support System Integration |
| R | LEO Request Liaison Engineering Order |
| SCARS | Sneak Circuit Analysis Report Summary |
| SAG | E SAILShuttle Avionics Integration Laboratory |
| CAS | Control Augmentation System |
| IV | Interface Volume |
| SPS | Statement Of Prior Submission |
| SXT | Sextant |