| Acronym | Meaning |
| MSD | MARS Supplemental Data |
| PDI | Payload DePloyment And Retrieval System |
| DEMUX | Demultiplexer |
| RPT | Resident Provisioning Team |
| MPHE | Material And Personnel Handling EqLjipment |
| DDM | Discrete Data Management |
| MPM | Manipulator Positioning Mechanism |
| LRU | Line-replaceable Unit |
| PRR | Preliminary Requirements Review |
| MC&C | Measurement |