| Acronym | Meaning |
| POST | Program To OPtimize Simulated Trajectories |
| EAC | Estimate At Completion |
| FBCS | Fixed Base Crew Station (SMS) |
| DISP | Display |
| PRN | Program Release Notice |
| KMS | K-Words X Millions Of Seconds |
| DOH | Discrete Output High |
| ITO | Integration And Test Order |
| CCB | Configuration Control Board |
| MILLS | Modular Integrated Utility Systems |