Table 1 The scale of preference between two factors in AHP (Saaty 1980)
Preference factor | Degree of preference | Definition |
|---|---|---|
1 | Equally | two factors have equal importance to the desired objective |
3 | Moderately | One factor slightly has more importance than the other to the desired objective |
5 | Strongly | A factor strongly has higher importance than the other towards achieving the desired objective |
7 | Very strongly | Here a factor has very strong importance more than the other towards achieving its objective |
9 | Extremely | One factor is extremely more important than the other toward achieving the desired objective |
2,4,6,8 | Intermediate | when factor importance is between 1,3,4,7 and 9 |