Table 4 Scale method 0.1 to 0.9.

From: Quality function deployment approach to urban ecological public art design centred on resident needs

Scale

Define

Clarification

0.5

Equal important

The two factors are equally important when compared

0.6

Slightly important

Comparison of two factors, one slightly more important than the other

0.7

Clearly important

Comparison of the two factors, with one factor being significantly more important than the other

0.8

Far more important

Comparison of two factors, one much more important than the other

0.9

Vital

Comparison of two factors, one more extremely important than the other

0.1,0.2,0.3,0.4

Inverse comparison

If Factor are compared and a judgment is obtained , then the factor is compared with the factor The judgment obtained by comparing