2. passion for impossible
Objective
Objective of this session is to understand
What is DFSS?
Why to use DFSS?
When to use DFSS?
Differences between Six Sigma DMAIC and DFSS
2
3. passion for impossible
Preamble
1. Design of a new process is more complex than running
an operation (existing process)
2. Design involves cross functional involvement for
success
3. Design is a project management & hence complex –
eg Application devt.
4. Success of new product or a process is measured by
Quality, Timeline and cost which is invariably not met.
5. It is wiser to design a six sigma product and process
rather than improving after launch
6. As Process improvement needs DMAIC, new design
needs DFSS
4. passion for impossible
Generic Business Model
PRODUCT INTRODUCTION PROCESS Customers
Market
BRAMHA
Support
Processes
INFORMATION PRODUCTION DISTRIBUTION
ACQUISITION
Customers OPERATIONS PROCESS
Customers
VISHNU MAHESH
5. passion for impossible
Issues faced in New Product
or Service Development
• Product or Service Development Constraints
– Subject to increasing global competition & less duration of
product life cycle
– Rapid technology shifts and substitutes
– Quality and product liability issues needs better products &
services.
Quality Complexity
Time to Market
6. passion for impossible
Application of DFSS
Resources Revenue
Required & Generated
Number of
Modifications
DFSS+Lean Vision:
Predictive Design Revenue
with DFSS
Revenue
w/o DFSS+Lean
Launch Launch Time
Predictive Design Pre-DFSS Reactive Design
7. passion for impossible
Reducing Time and Cost
to Market
• Early identification of important,
critical aspects helps setting
realistic targets...
– leading to a more focused design 50-60% 100%
and development phase
– dramatically reducing need for Using DFSS
design changes late in the project
Conventional
Product Design & Design
Planning Development Changes
8. passion for impossible
Juran’s Breakthrough
Improvement
Design Stage Production Stage Quality control (during operations)
Special cause:
Cost of poor quality
Sporadic spike
Why this
rejection?
Chronic waste
Operations
DFSS ZONE (an opportunity for Quality
Improvements) improvement
start
Time
Lessons learnt Apply DFSS 8
9. passion for impossible
Why DFSS+Lean?
Difficulty
Opportunity to change
High For change
Low
Concept Prototype Pilot Production Customer
10. passion for impossible
Impact of DFSS+Lean in
Service design
5%
5%
Overhead
30%
20%
Actual Labor Cost
Cost Influence
15%
Material 70%
50%
Design
5%
Source: Six Sigma, The Breakthrough Strategy Revolutionizing The World’s Top Corporations by Mikel Harry
12. passion for impossible
Increase Sigma Levels
• Typical new designs perform in the 2-3 Sigma Range
• Develop designs that can be produced on-target with minimum
variation, operating at customer defined performance levels
World Class Designs needs
DFSS
LSL USL
Most Organizations Today
CTQ
13. passion for impossible
Organizational Responsibility
Profiles
Business Project Design Subject-Matter
Management Management Process Expertise
DFSS
Source: Stuart Arnold, DERA Systems Engineering Reference Manual
14. passion for impossible
Three Dimensions of Six
Sigma
Process Management
supports and maintains the DMAIC
projects’ solutions once incrementally improves
they are fully implemented. existing processes by
n t
It is a source for new systematically removing
me
Si
improvement and design root causes for variation.
xS
ge
projects.
na
igm
Ma
aD
s
es
MA
oc
I
C
Pr
Design For Six Sigma
Design For Six Sigma
is used when a new a product or service is needed or
an existing requires significant change so that the
improvement process is inadequate.
15. passion for impossible
How Six Sigma Methodology
Works?
VERIFY , OPTIMIZE , DESIGN , IDENTIFY
ANALYZE , IMPROVE & CONTROL MEASURE DEFINE
JOURNEY OF EXCELLENCE - DMAIC & DFSS
Delighted
Customer
Happy
Dissatisfied
INPUTS OUTPUT
Critical To Quality
Characteristics
Project y REQUIREMENTS
Y = f (x1, x2 ,………….Xn)
PROCESS Stated
EXPECTATION
Hassle free
transaction
DO’s Defect
Re-design Opportunities NEEDS
Implied
Process Capability
17. passion for impossible
DFSS Philosophy of Concurrent
Approach
Phases in No 1
Traditional linear approach
Overlap Approach
Simultaneous Engg. approach
18. passion for impossible
IDOV vs. DMAIC
Critical No
Business
Process DMAIC
Need? Management
Define
Yes
Measure
Existing
No
Product? IDOV Analyze
Yes Does Yes
solution
No
require new IDOV
product
Incremental design?
Improvement IDOV
possible?
No
Yes Implement
Control
19. passion for impossible
DFSS+Lean
“We are going to Shift the Paradigm from fixing
Products to fixing and Developing Processes, so that
they Produce nothing but Perfection or Close to It!!”
Jack Welch
21. passion for impossible
IDOV Approach
To select the To build a To develop a
best product or Check the final
thorough base of Robust design to
service concept Design to ensure
knowledge about
based on the achieve a that the product or
the product or
voice of the service and balance of quality, service is meeting
customer (VOC) cost, and time to customer
develop the
market requirements
process
Identify Design Optimize Verify
Plan High level design Robust design Testing & production
22. passion for impossible
DFSS Tool Kit
Quality function Requirements
deployment
(QFD) definition
QFD Production system QFD
Design for Concept concepts Process FMEA
manufacture development development simulation
(DFM)
QFD QFD
Product FMEA
Detailed product Product FMEA
Taguchi
design Taguchi
DFM Detailed process
Validation Process capability
Design
testing Poka yoke
SPC Validation
Problem Production testing
solving simulation
techniques
24. passion for impossible
IDOV Approach
We are here
To select the To build a
To develop a Check the final
best product or thorough base of
Robust design to Design to ensure
service concept knowledge about
achieve a that the product or
based on the the product or
balance of quality, service is meeting
voice of the service and
cost, and time to customer
customer (VOC) develop the
market requirements
process
Identify Design Optimize Verify
Plan High level design Robust design Testing & production
26. passion for impossible
Identify Tools & Activities
Define Project Decide Strategy Identify Requirements
Understand the
Voice of the Customer
A well-defined charter and Develop a Multi
The Voice of the Customer
mission statement make sure Generation Plan
(VOC) describes customers’
the project is in the right track An MGP helps you decide
needs and their perceptions
what needs to be done
of your product or service.
now and what should be
Focusing on true customer
done later
benefit makes sure you are
solving the right problem.
Develop Project Plans
Spending time up-front
Identify Factors Critical working with others in the Translate VOC into
to Success Measurable CTQs
organization to integrate
Failure to recognize and the project plan is well The QFD matrix is based
address a significant risk worth the effort. on the VOC work to identify
could jeopardize a project. customer needs and
priorities. A performance
scorecard can be used at
this stage to start tracking
reliability
34. passion for impossible
Verify Tools & Activities
Test & Pilot Verify & Validate Transfer / Close
The pilot sets the tone for An increased testing After completion of
full deployment. It helps using formal tools production, responsibility is
think through the issues and occurs transferred from the design
set expectation for everyone team to the
process owner.
Capability Validation
Prototyping and production
ramp-up make extensive
use of standard Six Sigma
DMAIC tools to validate
and verify manufacturability
Prototype / Pilot Implementation and Closure
and fitness for use.
The plan for collecting data during the Closure documents and
pilot should be based on the Process process deliverables are
Management Chart prepared. Project resources
are released and redistributed.
Project
Management
Chart
35. passion for impossible
DFSS Road Map for NSE
Kick off workshop Team
DFSS – I – Phase Training
& Project Brief Formation
1/2 day 2 days 3 weeks for
data
collection
DFSS – D – Phase Identification
Design Coaching Training Coaching
3 days 4 weeks 2 days 3 weeks 3 days
DFSS – OV – Phase
Design
Optimize – Verify
Training Documentation
Coaching
Coaching
1 1/2 days 2 – 3 weeks 3 days
3 days