| Acronym | Meaning |
| MSEC | Master Separation Events Controller |
| PMEL | Precision Measurements Equipment Laboratory |
| MCIU | Master Control And Interface Unit |
| NCR | No Calibration Required |
| PSE | Payload Servicing Equipment |
| CTA | Controlled ThrustAssembly |
| EMT | Electro-Mechanical Test |
| FCRT | Flight Display CRT |
| N/C | Numerical Control |
| SIRR | Software Integration Readiness Review |