Table 5.

Basic Analytic Hierarchy Process (AHP) scale of Saaty.

Intensity of Importance	Definition	Explanation
1	Equal importance	Both criteria contribute equally to the objective.
3	Moderate importance	The evaluator’s experience says that one element has little greater importance than the other for the objective
5	Strong importance	The evaluator’s experience says that one element has greater importance than the other for the objective
7	Very strong importance	The evaluator’s experience says that one element has relatively greater importance than the other for the objective
9	Extremely important	The evaluator’s experience says with a high degree of certainty that one element is of greater importance than the other in relation to the objective
2, 4, 6, 8	Intermediate values	Used when an intermediate index of importance is required