| Acronym | Meaning |
| W | Wide |
| DEIS | Design Engineering Inspection Simulation |
| SPR | Subcontractor Performance Review |
| NOC | Network Operation Control |
| SSITP | Shuttle System Integrated Test Plan |
| REJ | Reject |
| TDS | Test Data System |
| ECIO | Experiment Computer Input/Output |
| PSA | Payload Service Area |
| RFCP | Request For Computer Program |