Incorporating Variability in Lean Manufacturing: A Fuzzy Value Stream Mapping Approach

Table 5

The NFNs corresponding to cycle time and WIP.

	NFN
Raw material inventory (days)	(2.01, 0.31)
Cutting (s)	(19.84, 1.89)
Buffer 1 (days)	(0.80, 0.23)
Prefitting (s)	(30.05, 1.60)
Buffer 2 (days)	(1.49, 0.15)
Computer stitching (s)	(320.60, 6.25)
Buffer 3 (days)	(0.43, 0.17)
Manual stitching (s)	(298.06, 11.24)
Buffer 4 (days)	(1.91, 0.84)
Assembly (s)	(510.58, 12.61)
Buffer 5 (days)	(2.18, 0.83)