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What is Six Sigma?
A goal of near perfection in meeting customer requirements
A sweeping culture change effort to position a company for
greater customer satisfaction, profitability and
competitiveness
A comprehensive and flexible system for achieving,
sustaining and maximizing business success; uniquely driven
by close understanding of customer needs, disciplined use of
facts, data, and statistical analysis, and diligent attention
to
managing, improving and reinventing business processes
(Source:The Six Sigma Way by Pande, Neuman and Cavanagh)
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What is Six Sigma?
Six Sigma at many organizations simply means a
measure of quality that strives for near perfection.
Six Sigma is a disciplined, data-driven approachand methodology
for eliminating defects (driving
toward six standard deviations between the mean
and the nearest specification limit) in any process
from manufacturing to transactional and fromproduct to
service.
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Is 99% Quality Good Enough?
22,000 checks will be deducted from thewrong bank accounts in
the next 60
minutes.
20,000 incorrect drug prescriptions will bewritten in the next
12 months.
12 babies will be given to the wrong parentseach day.
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Six sigma
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Six Sigma Improvement MethodsDMAIC vs. DMADV
Define
Measure
Analyze
Design
Validate
Improve
Control
Continuous Improvement Reengineering
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Six Sigma DMAIC Process
Measure
Control
Define
Analyze
Improve
Define: Define who yourcustomers are, and whattheir requirements
are for
your products and servicesTheir expectations. Defineyour team
goals, projectboundaries, what you willfocus on and what you
wont.
Define the process you arestriving to improve bymapping the
process.
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Six Sigma DMAIC Process
Measure
Control
Define
Analyze
Improve
Measure: Eliminateguesswork and assumptionsabout what customers
needand expect and how wellprocesses are working. Collect
data from many sources todetermine speed in respondingto
customer requests, defecttypes and how frequently they
occur, client feedback on howprocesses fit their needs,
howclients rate us over time, etc.The data collection maysuggest
Charter revision.
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Six Sigma DMAIC Process
Measure
Control
Define
Analyze
ImproveImprove: Generate bothobvious and creative
solutions to fix and preventproblems. Finding creativesolutions
by correcting rootcauses requires innovation,
technology and discipline.
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Six Sigma DMAIC Process
Measure
Control
Define
Analyze
Improve
Control: Insure that theprocess improvements, onceimplemented,
will hold thegains rather than revert to
the same problems again.Various control tools such asstatistical
process control canbe used. Other tools such as
procedure documentationhelps institutionalize
theimprovement.
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Six Sigma DMADV Process
Measure
Validate
Define
Analyze
Design
Design: Develop detaileddesign for new process.Determine and
evaluateenabling elements.
Create control and testingplan for new design. Usetools such as
simulation,benchmarking, DOE,
Quality FunctionDeployment (QFD),FMECA analysis, andcost/benefit
analysis.
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Six Sigma DMADV Process
Measure
Validate
Define
Analyze
Design
Validate: Test detaileddesign with a pilotimplementation. If
successful, develop andexecute a full-scaleimplementation. Tools
inthis step include:
planning tools,flowcharts/other processmanagement techniques,and
work documentation.
