6. Under what circumstances might concurrent engineering (overlapping the stages

Question

6. Under what circumstances might concurrent engineering (overlapping the stages of 7. Discuss the roles that personnel from warranty/field service and the manufacturine 8. In which stages of a new product design and development project are supply chain Discuss the prus dc design and development) be a bad idea? shop floor might play when conducting a FMEA. operations managers most likely to have the greatest impact? Why? FROBLEMS 1. Refer back to the QFD for housekeeping services shown in Figure 4-6. What seem to be the biggest opportunities for improvement, relative to competi- tors' levels of performance? a. b. Which technical feature is most strongly related to the goal of protecting the safety and security of guests' possessions? Why would room cycle time and defect rate be negatively correlated? Which technical feature has the strongest associations with the largest number of guest requirements? c. d. 2. Given the FMEA data provided in the table below: a. b. c. d. What is the RPN for each failure cause? Which failure cause would be of least concern? Which failure cause would be of greatest concern? For the failure of greatest concern, would your recommended action be aimed at reducing failure severity, occurrence, or undetectability? On what other informa- tion would your answer depend?

Explanation / Answer

a.

b. M, because it has least RPN; it is only moderately severe, unlikely, and easily detectable.

c. N, because it has highest RPN, mostly due to undetectability

d. Undetectability is the primary driver of RPN for Failure Cause N. Recommended actions might be to increase the built-in testing and monitoring systems in the product design. The answer depends on whether the failure cause is truly unpredictable (such as a random occurrence), or if the undetectability is due to a lack of design quality.

Failure Cause Severity Occurrence Undetectability RPN M 5 2 1 =5*2*1 = 10 N 3 4 9 =3*4*9 = 108 X 2 2 3 =2*2*3 = 12 Y 7 3 2 =7*3*2 = 42 Z 9 1 5 =9*1*5 = 45

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