Quality control
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avoid substandard product
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cheaper fewer workers needed
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reactive not proactive
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expensive
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large product of substandard products
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accepted reject rate, quality assurance aims for 0 defects
Quality assurance
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check for mistakes as a product is being made
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improve employee motivation by giving them responsibility
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employee participation
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reduce cost of wastage (avoid large batches of defective products)
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proactive
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expensive compared to qc
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only works if each employee wants high quality
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not feasible to check each product