Table 21.

TOPSIS verification results

Scenarios	EISD	UEI	Difficulty	Close value
M-L–H-H	3.584	0.525	0.709	0.9335
H–L-H–L	3.596	0.525	0.793	0
M-M-H-M	3.513	0.516	0.810	0.5968