| Acronym | Meaning |
| MSIA | Multispectral Image Analyzer |
| FSR | Final System Release |
| OWDE | One-Way Doppler Extraction |
| CPDS | Crew Procedures Documentation System |
| LRECL | Logical Records Of Fixed Length |
| OBS | Operational Bioinstrumentation System |
| RECP | Receptacle |
| ENT | Entry |
| IMD | Intermediate |
| DDS | Detailed Design Specification |