C3

D7

D8

D9

Indicator weight WC3

Consistency test

D7

1

2

3

0.540

λ_max = 3.009

D8

1/2

1

2

0.297

CI = (λ_max − n)/(n − 1) = 0.046

D9

1/3

1/2

1

0.163

CR = 0.027 < 0.1 Meets consistency