| BASEBALL | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | Constrained natural language for querying attribute value pairs |
| ETF | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | Early query language |
| GIRLS | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | Generalized Information Retrieval and Listing System |
| Legal Retrieval | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | Information retrieval system for legal documents |
| Minuteman | ⊕ 1961 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | GEC information retrieval system |