| Acronym | Meaning |
| MESC | Master Events Sequencer Controller |
| SMCH | Standard Mixed Cargo Harness |
| ATE | Automated Test Equipment |
| EXPEN | Expendable |
| LOAP | List Of Applicable Publications |
| SCDR | Shuttle Critical Design Review |
| SCR | Sneak Circuit Report |
| IDTA | Interdivisional Technical Agreement |
| DP | Data Processing |
| RIF | Relative Importance Factor |