Page 239 - Design for Six Sigma a Roadmap for Product Development

cost (index)
Vulnerability
cost factor
Dissatisfaction
cost factor
Repair
Action Results
Frequency
Actions
Taken
mended
Recom-
actions
Current
Control
Design
cost (index)
Determine the priority of failure modes to attract Design Parameters … ... Output Input System Error Second Level Functional Decomposition Noise Factors States … DP 11 1 0 0 … DP 12 1 1 0 = … DP 13 1 0 1
Vulnerability
cost factor
Dissatisfaction
cost factor
Repair
Frequency
Potential Causes What are the causes? -interact. between DPs -Parameters of DPs -Noises Subsystem DP1 FR 11 FR 12 FR 13
Potential Effects What are the effects on higher level functions? DP 1 DP 2 DP 3 FMEA and transfer function.
System: Subsystem DP1 Failure Modes Function What are What could the go wrong? functions? -No func. -Partial func. -Degr. func. -unintend. func. System High Level Functional Decomposition 1 0 1 FR 1 FR 2 0 1 1 = 1 0 1 FR 3 Figure 6.15

210