DHU and DPMO are both quality metrics but measure defects differently.
DHU stands for Defects per Hundred Units. DPMO stands for Defects per Million Opportunities. Both measure quality, but they look at different things. DHU counts defects per 100 pieces. DPMO counts defects per million opportunities, where an opportunity is any chance for a defect to occur. DPMO is used in Six Sigma because it accounts for complexity.
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Fishbone diagram finds all possible causes of a problem using 6M categories.
TQM is a company-wide approach to quality that involves every employee.
DHU measures defects per hundred units and is a key quality KPI in garments.
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