| Acronym | Meaning |
| CDRR | Contract Documentation Requirements Records |
| DD | Mechanical And Facilities Engineering (KSC DE Dir.) |
| CRR | Critical Requirements Review |
| SPO | Shuttle Projects Office |
| DDT&E | Design |
| CPM | Critical Path Method |
| MM | Man-Month |
| IUS | Interim/intermediate UPper State |
| MF | Middeck Forward |
| LC | Intercom (Orbiter To Ground Via Hardline) |