Service Station Evaluation Problem in Catering Service of High-Speed Railway: A Fuzzy QFD Approach Based on Evidence Theory

Table 2

Inputs and outputs in HOQs of the two-phase F-QFD.

Inputs	Descriptions
	The fuzzy important ratings of where
	The fuzzy relationship score between and , where ;
	The fuzzy relationship score between and , where ;
	The fuzzy correlation score between and , where ;
	The fuzzy correlation score between and , where ;
	The fuzzy correlation score between and , where ;
Outputs	Descriptions
	The fuzzy important ratings of where
	The fuzzy important ratings of where