4.2.3. Consistency Test

We performed consistency tests on the combined weight values of all the design elements in Table 11, and the operational procedure and results are shown:

$$\mathbf{CI} = \sum\_{j=1}^{m} b\_j \mathbf{CI}\_j = (0.000\ 0.000\ 0.000\ 0.000) \begin{pmatrix} 0.2667\\ 0.2759\\ 0.1909\\ 0.2663 \end{pmatrix} = \mathbf{0} \tag{9}$$

$$\text{CR} = \text{Cl/RI} = 0 \div 1.520 = 0 < 0.1 \tag{10}$$

Based on Equations (9) and (10), CR = 0 < 0.1. The hierarchical total ranking of matrix B was consistent with the consistency test principle, and we found that the calculations of the comprehensive weight values of the scheme-level elements in Table 9 were scientific and reasonable and so could effectively guide the practical analysis [53].
