Design and construction of a variables switch-based sampling system for product acceptance determination

  • Chien-Wei WuEmail author
  • Shih-Wen Liu
  • Jr-Tzung Chen
  • Jhih-Jia Lin


This article proposes a variables switch-based sampling system, called the quick-switching sampling (QSS) system, based on one-sided capability indices for product acceptance determination when the quality characteristic of interest follows a normal distribution and has a unilateral specification limit. The QSS system is among the simplest sampling systems that involves a normal plan and a tightened plan under switching rules. The operating characteristic function of the proposed system is derived from an exact sampling distribution. The plan parameters are determined by a mathematical model that ensures the prescribed quality and risk requirements. The performance and behavior of the proposed variables QSS system are discussed and compared with those of conventional plans. For practical purposes, this article provides tables of the plan parameters under various conditions, and illustrates the method on an example taken from the integrated circuit industry.


Process capability indices Acceptance sampling Quality control Quality assurance Process yield Switching rule 


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Funding information

This work was partially supported by the Ministry of Science and Technology of Taiwan under Grant No. MOST 103-2221-E-007-103-MY3.


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  • Chien-Wei Wu
    • 1
    Email author
  • Shih-Wen Liu
    • 1
  • Jr-Tzung Chen
    • 1
  • Jhih-Jia Lin
    • 2
  1. 1.Department of Industrial Engineering and Engineering ManagementNational Tsing Hua UniversityHsinchuTaiwan
  2. 2.Department of Industrial ManagementNational Taiwan University of Science and TechnologyTaipeiTaiwan

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