| Acronym | Meaning |
| VE | Vehicle Engineering (KSC VBO Directorate) |
| TDD | Task Description Document |
| IOC | Input/Output Controller |
| SCL | Specification Change Log |
| DA | Deployed Assembly |
| LUCS | Instrumentation Unit Update Command System |
| COP | Contingency Operations Plan |
| VO | Velocity Initial |
| PRE | Personal Rescue Enclosure |
| MDE | Mission Dependent Equipment |