| Acronym | Meaning |
| GTS | GNS Test Station |
| MOPS | Mission Operations Planning System |
| CIRHS | Critical Items And Residual Hazards List |
| MRS | Management Review System |
| ORR | Operational Readiness Review |
| CECP | Compatibility Engineering Change Proposal |
| S/C | Signal Conditioner |
| CCA | Contract Change Authorization |
| TSSU | Test Signal Switching Unit |
| MML | Master Measurement(s) List |