A Grey-Fuzzy Multiobjective Model for Supplier Selection and Production-Distribution Planning Considering Consumer Safety

Table 2

Supplier’s performance rating with respect to product safety criteria.

Suppliers	Materials
	O11	O12	O21	O22	L1	L2
1	[1.90,3.64]	[2.36, 3.83]	N/A
2	[3.06, 4.47]	[3.75, 4.89]	N/A
3	[3.17, 4.49]	[3.24, 4.72]	N/A
4	[4.69, 5.97]	[5.04, 6.48]	N/A
5	N/A		[2.28, 3.82]	[1.88, 3.61]	N/A
6	N/A		[2.96, 4.35]	[2.96, 4.46]	N/A
7	N/A		[3.23, 4.60]	[3.82, 4.94]	N/A
8	N/A		[4.70, 5.97]	[5.22, 6.52]	N/A
9	N/A		N/A		N/A	[3.45, 4.68]
10	N/A		N/A		N/A	[3.75, 4.89]
11	N/A		N/A		N/A	[3.82, 4.94]
12	N/A		N/A		[4.82, 6.01]	N/A
13	N/A		N/A		[5.04, 6.48]	N/A
14	N/A		N/A		[6.78, 8.79]	N/A

Note. N/A = this material is not available from supplier.