Table 4 Relationship levels, their respective symbols, and fuzzy numbers.
Relationship level | Linguistic variable symbol | Fuzzy numbers | ||
|---|---|---|---|---|
a | m | b | ||
Very low | VL | 0.0 | 0.0 | 0.25 |
Low | L | 0.0 | 0.25 | 0.5 |
Average | A | 0.25 | 0.5 | 0.75 |
Strong | S | 0.5 | 0.75 | 1.0 |
Very strong | VS | 0.75 | 1.0 | 1.0 |
Non-existent | – | – | – | – |