| Acronym | Meaning |
| SIA | Software Impact Assessment |
| DARTS | Digital Automated Radar Tracking System |
| TMC | Test Monitoring Console |
| VDA | Valve Driver Assembly |
| LSP | Least Significant Portion |
| IDWA | Interdivisional Work Authorization |
| T&O | Test And Operations |
| MMOS | Multimode Optical Sensor |
| PEM | Plant Engineering And Maintenance |
| CTA | Computer Technology Associates (GSFC) |