Table 2.
Linguistic variables for pairwise comparisons of criteria and sub-criteria.
| Linguistic variable | Fuzzy triangular scale | Triangular fuzzy reciprocal scale |
|---|---|---|
| Extremely important | (9,9,9) | (1/9, 1/9, 1/9) |
| Intermediate | (7,8,9) | (1/9, 1/8, 1/7) |
| Very important | (6,7,8) | (1/8, 1/7, 1/6) |
| Intermediate | (5,6,7) | (1/7, 1/6, 1/5) |
| Important | (4,5,6) | (1/6, 1/5, 1/4) |
| Intermediate | (3,4,5) | (1/5, 1/4, 1/3) |
| Moderately important | (2,3,4) | (1/4, 1/3, 1/2) |
| Intermediate | (1,2,3) | (1/3, 1/2, 1) |
| Equally important | (1,1,1) | (1, 1, 1) |
Source: adopted from Ayhan (2013); Emrouznejad and Ho (2017); Kannan et al. (2013).