Table 2 Important scale of relative importance of numbers in AHP (Saaty 2008)
Power of importance | Description |
|---|---|
1 | Equally important |
3 | Moderately important |
5 | Strongly important |
7 | Very strongly important |
9 | Extremely important |
Reciprocals importance values of the above numbers | If criteria i has one of the above non-zero numbers assigned to it as compared with activity j, then j has the reciprocal importance value as compared with i |
1.1–1.9 | If the criteria’s have very closely important to each other |