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An action plan to finish the flow-down of the design functional requirements
to design parameters and process variables
DFSS tools used in this phase:
QFD
8
Axiomatic design
9
Measurement system analysis (MSA)
(FMEA)
Design scorecard
Process mapping (flowcharting)
Process management
Pugh concept selection
Robust design
10
Design for reusability
11
Design reviews
Software DFSS Phase 3: Optimize the design
12
This phase spans stage 5 only—the “design optimization” stage.
Stage 5: Design Optimization
Stage 5 Entrance Criteria
Closure of Tollgate 4: Approval of the gate keeper is obtained.
Design documentation defined: The design is complete and includes the in-
formation specific to the operations processes (in the opinion of the operating
functions).
Design documents are under the highest level of control.
A formal change configuration is in effect.
Operations are validated by the operating function to preliminary documen-
tations.
Demonstration test plan is put together that must demonstrate functionality
and performance under operational environments. Full-scale testing and load
testing.
Risk assessment.
TG “5”—Stage 5 Exit Criteria
Agreement that functionality and performance meet the customers' and busi-
ness's requirements under the intended operating conditions.
Decision to proceed with a verification test of a pilot built for preliminary
operational process documentation.
Analyses to document the design optimization to meet or exceed functional,
performance, and operating requirements.
8
See Chapter 12.
9
See Chapter 13.
10
See Chapter 18.
11
See Chapter 14.
12
See Chapter 17.
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