Quality-Oriented Classification of Aircraft Material Based on SVM

Table 2

The material quantization table.

Criteria layer	Subcriteria layer	Quantitative values
		1	3	5
Quality basic-value	Qualification rate	Below 90%	90%~95%	95%~100%
	Quality failure rate	Over 10%	3%~10%	Below 3%
	Quality stability	Less stable	General	Stable
Quality influence value	Mean time to repair	Short processing time	Medium processing time	Long processing time
	Impact depth	Weak	General	Severe
	Influence range	Weak	General	Severe
Quality cost	Quality management cost	Low	Medium	High
	Detection complexity	Simple	General	Complex
	Quality traceability	Complete	Medium	Nonretroactivity