| Acronym | Meaning |
| EDA | Electronic DisPlay Assembly |
| DDI | Discrete Digital Input |
| FCIT | First Computer Interface Tester |
| ISS | Integrated System Schematic |
| FSSR | Flight Systems Software Requirements |
| KOI | Kano |
| HYD | Hydraulic Subsystem |
| SPADS | Shuttle Problem Action Data System |
| PROM | Programmable Read-Only Memory |
| STDN | Space Tracking And Data Network |