| Davies decision table simulation language | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Simulation language with decision tables |
| DECTAT | ⊕ 1974 | ↓ ↑ ⊕ Business Data Processing | ⊕ Decision tables | ⊕ United Kingdom | Decision table generator |