Page 437 - Design for Six Sigma a Roadmap for Product Development

Remote—likelihood of defect being shipped is remote ( 150 ppm) Low—likelihood of defect being Moderate—likelihood of defect High—likelihood of defect being Very high—likelihood of defect

Detection Description shipped is low (151–750 ppm) being shipped is moderate (751–15,000 ppm) shipped is high (15,001– 75,000 ppm) being shipped is very high ( 100,000 ppm)

Rating 1–2 3–4 5–7 8–9 10

Remote—probability of failure 0.015% of total ( 150 ppm) from 0.015–0.375% of total Moderate—probability of failure High-probability of failure from 1.5– 7.5% of total (15,001–75,000 ppm) Very high-probability of failure 7.5% of total ( 75,001 ppm)

Description
Occurrence Low—probability of failure (150–3750 ppm) from 0.375–1.5% of total (3751–15,000 ppm)

Rating 1–2 3–5 6–7 8–9 10

Service FMEA Ratings Severity Description Unreasonable to expect this will be noticed in the process, or impact any process or productivity; nor negligible effect on product function. The customer will probably not notice the difference Low. Very limited effect on local process, no downstream pr

11.6 Very low. deterioration High. Extreme.

TABLE Rating 1 2–3 4–6 7–8 9–10

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