A Major-Defect is a Specification-Defect (a Rule violation), which if not fixed at an early stage of specification, then it's consequences will possibly grow substantially, in cost-to-fix and/or damage potential.

Alternative Names

Concept Number: *091
English Master: Major-Defect
Synonyms, Variations & Acronyms: none


A Major-Defect has on average approximately an order of magnitude more downstream Cost potential than it's Cost to remove immediately.

Rationale: This Concept and classification is necessary to help SQC Checkers and other QC people to focus on what Defects it pays off to find and eliminate in a specification. Without this classification, up to 90% of QC effort might be wasted dealing with Minor-Defects.

Abbreviations: M (Intentionally written with a capital M), Major.


Illustration: none


Domain: SQC.

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This Concept entered by Neil White.

Created by system. Last Modification: Wednesday 04 of December, 2013 17:50:46 CET by Kai Thomas Gilb.

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