A Fuzzy Nonlinear Programming Approach for Optimizing the Performance of a Four-Objective Fluctuation Smoothing Rule in a Wafer Fabrication Factory

Table 6

The performance levels of various approaches for cycle time standard deviation.

Cycle time standard deviation (hrs)	A; (normal)	A; (hot)	A; (super hot)	B; (normal)	B; (hot)
FIFO	55	24	25	87	51
EDD	129	25	22	50	63
SRPT	248	31	22	106	53
CR	69	29	18	58	53
FSMCT	419	33	16	129	104
FSVCT	280	37	27	201	77
NFS	64	40	19	37	26
4o-SDR	71	41	22	30	29
The proposed methodology	68	20	23	27	34