Uniformity of Production vs. Conformance to Specifications in the Canning Problem

  • F. J. Arcelus


This paper analyses an issue of great practical importance for many production processes, namely how to coordinate the apparently contradictory goals of producing not only in accordance to specifications but also with as much uniformity as possible in the characteristic of interest. The primary objective is to assess the viability of combining the twin quality objectives of minimizing rejection rates and maximizing the uniformity of production of the resulting items. The basic import of the study is that, when flexibility in setting specification limits and non-uniformity penalties exists, optimal results can be obtained which yield approximately the same profit per unit as that associated with the traditional within-specifications policy, while at the same time providing lower rejection rates and decreases in process variability.

Key Words

Quality Variance Reduction Taguchi Penalty Function Conformance-to-Specifications Optimization 


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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • F. J. Arcelus
    • 1
  1. 1.Faculty of AdministrationUniversity of New BrunswickFrederictonCanada

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