| Acronym | Meaning |
| DAIS | Data Avionics Information System |
| OPIDF | Operational Planning Identification File |
| SP-PAI | Project Assessment And Integration Staff (KSC) |
| MRA | Mechanical Readiness Assessment |
| MCF | Mission Control Facility |
| SI | Solar Inertial |
| HE | Heat Exchange (Exchanger) |
| SOW | Sox Supercritical Oxygen |
| PREF | Preference |
| HIP | Hardware Interface Program |