Page 31 - Design for Six Sigma a Roadmap for Product Development

Quality Concepts 9

TABLE 1.2 Product Life Cycle and Quality Methods

Product/service
life-cycle stages Quality assurance tasks Quality methods
0. Impetus/ideation Ensure new technology Robust technology
and/or ideas to be robust development
for downstream
development
1. Customer and business Ensure new product/ Quality function deploy-
requirements study service concept to come ment (QFD)
up with right functional
requirements which
satisfy customer needs
2. Concept development Ensure that the new con- Taguchi method/robust
cept can lead to sound design
design, free of design TRIZ
vulnerabilities Axiomatic design
Ensure the new concept to DOE
be robust for downstream Simulation/optimization
development Reliability-based design
3. Product/service Ensure that designed Taguchi method/robust
design/prototyping product (design design
parameters) deliver DOE
desired product functions Simulation/optimization
over its useful life Reliability-based
Ensure the product design design/testing and
to be robust for variations estimation
from manufacturing,
consumption, and disposal
stages
4. Manufacturing process; Ensure the manufacturing DOE
preparation/product process to be able to Taguchi method/robust
launch deliver designed product design
consistently Troubleshooting and
diagnosis
5. Production Produce designed product SPC
with a high degree of Troubleshooting and
consistency, free of diagnosis
defects Inspection
6. Product/service Ensure that the customer Quality in aftersale
consumption has a satisfactory service
experience in consumption
7. Disposal Ensure trouble-free Service quality
disposal of the product or
service for the customer