| Acronym | Meaning |
| MFR | Multifunctional Receiver |
| ICC | Intercomputer Communication |
| OFI | Operational Flight Instrumentation |
| ECLS | Environmental Control And Life Support |
| SDF | System Development Facility (Breadboard) |
| MPL | Mechanical Parts List |
| OMRSD | Operational Maintenance Requirements And Specification |
| PUSS | Pallet Utility Support Structure |
| IPS | IPSL Interface Problem Status Log |
| COMAT | Compatibility Of Materials |