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Unformatted text preview: L = ρ 1 / (1-ρ 1 ) + ρ 2 / (1-ρ 2 ) + ρ 3 / (1-ρ 3 ) = 46 . 4449 jobs . Using Little’s law, L = λW , the average time in system per job is 46 . 4449 hours, since the arrival rate into the system is 1 job per hour. (d) The average size of the system is L = 21 . 985 jobs. Thus, the average time in system per job is 21 . 985 hours. 5% of reduction of the rework cuts the average cycle time to less than half. This is consistent with Goldratt theory in managing bottlenecks: a small help to a bottleneck machine, the great reduction to the cycle time. 1...
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This note was uploaded on 11/26/2009 for the course ISYE 3232 taught by Professor Billings during the Fall '07 term at Georgia Institute of Technology.
- Fall '07