Table 1.

The judgment scale is based on Saaty's rating.

Scale of Importance	Definition	Explanation
1	Equal importance	Both attributes contribute equally to the objective
3	Moderately important	Judgment slightly favors one activity over the other
5	Strongly important	Judgment strongly favors one over the other
7	Very important	One activity is greatly favored over the other
9	Extremely important	There is no doubt that one attribute is of the highest validity
2,4,6,8	Intermediate values	When compromise is needed