Science – Society – Technology
Table 1 The fundamental scale of the analytic hierarchy process (AHP) (Saaty, 1994)
From: Geothermal renewable energy prospects of the African continent using GIS
Intensity of importance on an absolute scale | Definition |
|---|---|
1 | Equal importance |
3 | Moderate importance of one over another |
5 | Essential or strong importance |
7 | Very strong importance |
9 | Extreme importance |
2, 4, 6, 8 | Intermediate values between the two adjacent judgments |
Reciprocals | If activity “i” has one of the above numbers assigned to it when compared with activity “j”, then “j” has the reciprocal value when compared with “i”. i and j are subscripts of “x” in Eq. (1) |