| Acronym | Meaning |
| CS | Change Status |
| DDI | Dedicated Display Indicator |
| ICAO | International Civil Aviation Organization |
| MB | Management Baseline |
| LSF | Laboratory Simulation Facility |
| OTDA | Office Of Tracking And Data Acquisition (now OSTDS) |
| CCP | Configuration Control Phase |
| MMT | Mass Memory Test |
| CBX | C-Band Transponder |
| SMC | Scientific ManPower Commission |