Gold in the mine is a metaphor for the potential savings in quality improvement efforts. It is essentially a restatement of the Pareto principle in the context of quality costs; digging in the right place can produce great savings, though investigating every possible opportunity is not economically feasible.[1]

References

  1. ↑ Juran, Joseph M. (1962). Quality Control Handbook (2 ed.). New York, New York: McGraw-Hill. pp. 1–34. OCLC 64292499.
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