| Abbreviation | Definition |
|---|---|
| PWID | Pacific Walrus International Database |
| QAID | Question Answer Information Database |
| QBA | Query By Assertion |
| QBE | Query Before Entry |
| QBH | Query By Humming |
| QC | Query Calling |
| QC | Query Containment |
| QC | Questionable Content |
| QCD | Query Content Description |
| QDB | Query Data Base |
| QDB | Query DataBase |
| QDB | Quick DataBase |
| QDB | Quick Database But |
| QDB | Quicken DataBase |
| QDF | Quick Data Fix |
| QDM | Quintet Data Model |
| QDUK | Qureshi Database United Kingdom |
| QFD | Quality function deployment |
| QG | Quasi-Global |
| QI | Quality of Information |