Queueing-Theoretic Models for

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Queueing-Theoretic Models for Push and
Pull/CONWIP-based Production Lines
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Intended Usage

• Estimation of various performance indices, e.g.,
• expected lead times and accumulated WIP in case
  of Push systems
• expected lead times and throughput in case of
  Pull systems.
• Design aids identifying pertinent and
  cost-effective configurations that can attain
  target performance values.
• Providers of analytical insight regarding the
  dynamics of the considered systems and of
  diagnostic capability

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Plan of Work

• Modeling of push-based flow lines as series of
  G/G/m queues operated at a certain throughput
  rate.
• Modeling of CONWIP-based lines as closed queueing
  networks.
• Modeling of the impact of preemptive and
  non-preemptive disturbances by revising the
  applied processing times.
• A design example
• Analyzing the impact of batching and blocking
  effects
• A systematic comparison of push and
  CONWIP-based systems according to the derived
  formal models
• A production planning framework for repetitive
  manufacturing environments controlled by CONWIP
  flow lines