For each of the following indicate whether a PFMEA, DFMEA, or Global 8D approach is the most appropriate.
a. A progressive stamping operation is having trouble holding the allowed tolerance for the distance between two holes in the part.
b. Customer feedback has focused attention on the need to improve the reliability of a certain electronic component.
c. Contaminants have been discovered in a critical machine lubricant.
d. The senior management of a large bank wants increased productivity in the processing of loan applications.
e. Competitive pressures suggest that the unit cost of a particular consumer product needs to be reduced by 15%.