| Acronym | Meaning |
| SID | Standard Interface Document |
| SGOS | Shuttle Ground Operations Simulation (Simulator) |
| ECC | Engineering Critical Component |
| SCD | Source Control Document |
| REC | Record (RCD Preferred) |
| CSC | Computer Sciences Corporation |
| CO | Carbon Monoxide |
| MDRS | Mission Data Retrieval System |
| SOMS | Shuttle Orbiter Medical System |
| HSL | Hardware Simulation Laboratory |