| DETAB/66 | ⊕ 1965 | ↓ ↑ ⊕ Business Data Processing | ⊕ Decision tables | ⊕ United States | Revised version of DETAB |
| DETAP | ⊕ 1965 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Single paragraph COBOL writer |
| KOP | ⊕ 1965 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Online system for batching jobs |
| PET | ⊕ 1965 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Decision table language |
| PET | ⊕ 1965 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ Canada | Decision table language |