Title page for ETD etd-08292008-063311


Type of Document Master's Thesis
Author Greco, Michael P.
URN etd-08292008-063311
Title Sequencing policy for a CONWIP production system
Degree Master of Science
Department Industrial and Systems Engineering
Advisory Committee
Advisor Name Title
Sarin, Subhash C. Committee Chair
Dar-el, E. Z. Committee Member
Ioannou, George Committee Member
Kobza, John E. Committee Member
Keywords
  • queueing
  • throughput
Date of Defense 1996-03-05
Availability restricted
Abstract

The optimization of the performance of a constant Work-in-Progress (CONWIP) production system through the sequencing of its backlog list is investigated. The performance measures considered are throughput, optimum WIP level (m*), and flow time. Analysis of the effects of sequence dependent bottlenecks on system performance is provided. A procedure is presented to determine a lower bound for (m*) given the product mix. A method that determines (m*) given the sequence of jobs is provided. A heuristic algorithm is provided for the purpose of determining a sequence to minimize (m*). The algorithm attempts to sequence the jobs to achieve the "best fit" between consecutive jobs so that machine and job idle times are minimized. The algorithm is tested through computer implementation to reveal its proficiency.

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