| Acronym | Meaning |
| SCAS | Subsystem COMPuter Application Software |
| PTI | Programmed Test Input |
| IPS | IRME Initiator Resistance Measuring Equipment |
| NG | NNG Narrow Gage |
| MSR | Module Support Rack |
| RQMT | Requirement |
| MML | Master Measurement(s) List |
| TG | Ground Systems (KSC Directorate) |
| ADPS | Acceptance Data Package System |
| LOB | Line Of Balance |