Table 1: Triangular fuzzy conversion scale.

Linguistic scale for importance degreesTriangular fuzzy scaleTriangular fuzzy reciprocal scale

Equally important(1/2, 1, 3/2)(2/3, 1, 2)
Weakly important(1, 3/2, 2)(1/2, 2/3, 1)
Moderately important(3/2, 2, 5/2)(2/5, 1/2, 2/3)
Fairly important(2, 5/2, 3)(1/3, 2/5, 1/2)
Strongly important(5/2, 3, 7/2)(2/7, 1/3, 2/5)
Strongly more important(3, 7/2, 4)(1/4, 2/7, 1/3)
Very strongly important(7/2, 4, 9/2)(2/9, 1/4, 2/7)
Absolutely important(4, 9/2, 5)(1/5, 2/9, 1/4)