SHIFTING PRODUCTION BOTTLENECKS: CAUSES, CURES, AND CONUNDRUMS

Stephen R. Lawrence

114 citations0/0 files storedProduction and Operations Management

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Operations Management Techniques Management and Optimization Techniques Advanced Queuing Theory Analysis

Abstract

We examine the phenomenon of shifting production bottlenecks from an analytic perspective. We quantify the propensity of a work center to be a bottleneck, defined as maximal queue length, using a simple Jackson production network model. Comparison of the analytic model against an empirical simulation‐based model shows that the two are in good agreement. A scalar measure of bottleneck shiftiness is proposed and used to investigate several policies for mitigating shiftiness. Simulation experiments show that several commonly observed managerial policies for coping with shifting bottlenecks actually increase shiftiness, but that shiftiness declines when the capacity of nonbottleneck resources is increased.

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References

1957Networks of Waiting Lines 1988Proceedings of the 1987 winter simulation conference 1978Queueing Systems, Volume 2: Computer Applications.1988Multiproduct Queueing Networks with Deterministic Routing: Decomposition Approach and the Notion of Interference 1986The Goal: Excellence in manufacturing 1989Tradeoff Curves, Targeting and Balancing in Manufacturing Queueing Networks 1989Synchronous Manufacturing: Principles For World Class Excellence 1988Traffic Processes in Queueing Networks: A Markov Renewal Approach.

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