| Acronym | Meaning |
| HRAA | High Rate Acquisition Assembly |
| FSIWG | Flight System Interface Working Group |
| RFL | Reflect |
| FWB | Fahrenheit Wet Bulb |
| INTRG | Interrogate |
| ECP | Engineering Control Proposal |
| RSS | Rotating Service Structure |
| SRR | Software Requirements Review |
| IB | Instruction Book |
| OPS | Orbiter Project Schedules |