Quality-Oriented Classification of Aircraft Material Based on SVM

Table 1

Quality-oriented material classification list.

	Types	Quality eigenvalue	Quality influence value	Quality cost	Attention
Quality; -oriented material classification	General material	High	Low	Low	Unnecessary
	Key material	High	Low	High	**
	Lever-type material	High	High	Low	**
	Core material	High	High	High	****
	Adjustable material	Low	Low	Low	**
	Risk material	Low	Low	High	****
	Bottleneck-type material	Low	High	Low	***
	Strategic material	Low	High	High	*****

More “∗” represent that we need to pay more attention to this type. For example, we should pay enough attention to strategic material with five “∗” during material management, whereas we can pay less attention to key material which just has two “∗”.