C2

D3

D4

D5

D6

Indicator weight WC2

Consistency test

D3

1

1

1/2

1/3

0.141

λ_max = 4.01

D4

1

1

1/2

1/3

0.141

RI = 0.9

D5

2

2

1

1/2

0.263

CR = 0.023 < 0.1

D6

3

3

2

1

0.455

Satisfy consistency