Using statistical control charts for software quality control

John S. Gardiner, Douglas Montgomery

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


This paper describes the use of Shewhart U charts for controlling software quality while the software is under development. A parallel between the software development process and a complex manufacturing process is developed. This allows the use of statistical control charts to monitor the software development process. The general approach is to let observed defect data represent a sample of the true but unknown state of the entire software project. Software quality data so obtained can be used to derive a meaningful statistical interpretation of the state of the development project. Based upon this interpretation management can take action to improve the overall software quality while in the development stages.

Original languageEnglish (US)
Pages (from-to)15-20
Number of pages6
JournalQuality and Reliability Engineering International
Issue number1
StatePublished - 1987
Externally publishedYes


  • Process control
  • Quality control
  • Software defect rates
  • Software quality
  • U‐charts

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Management Science and Operations Research


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