| Acronym | Meaning |
| PE | Project Engineer |
| MMRI | Mandatory Mission Rule Item |
| TDD | Technical Discussion Document |
| H/V | Height-velocity |
| TDMA | Time Division Multiple Access |
| DN | Down |
| UIMS | User Interface Management System |
| MP/M | Multiprogramming Control Program For Microprocessors |
| CAIS-A | Common Apse Interface Set - Revision A |
| SEC | Secure |