Mutual effects of defective components in assemblies

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The focus of this study is a known and disturbing actual problem. The industry will soon celebrate a century of quality awareness and efforts. Still, according to field data, many new products exit the manufacturing systems defective. This study proposes mutual effects among assembly's components as an explanation to this phenomenon - many defective new products. While each item in a serial manufacturing process moves individually, items are joined to others in assemblies. There, a single defective component suffices to disqualify a whole assembled unit! Surprisingly, few studies have focused on the repercussions of defective items on production. Particularly, there appears to be no study that quantifies these mutual effects of components which arrive from different sources with different defect rates. Thus, this study is also a first attempt to analyze and quantify these mutual effects. Apparently, the mutual effects of their components amplify the defect rates of assemblies dramatically, to the extent that defects due to common or random causes become significant.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalJournal of Manufacturing Systems
StatePublished - 1 Jan 2015


  • Assembly
  • Bill of Materials
  • Defect rate
  • Product structure
  • Quality

ASJC Scopus subject areas

  • Software
  • Control and Systems Engineering
  • Hardware and Architecture
  • Industrial and Manufacturing Engineering


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