Six sigma dmaic tree
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Six Sigma Six Sigma define / measure / analyse / improve / control
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Transcript of Six sigma dmaic tree
Six Sigma
Six Sigmadefine / measure / analyse / improve / control
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Six Sigma
Process
Define
Measure
AnalyseImprove Control
Overview Tools
Glossary
Examples
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overview
Six Sigma can be described as …
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A business philosophy & strategy adopted by companies who are recognized leaders in world class quality.
A Fact based decision making. An integrated part of a management system.
A Customer focused determination (Customer “critical-to-quality” factors) where we should focus our quality improvements.
…
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…
Continuous improvement methodology used to improve business processes and products.
Utilisation of powerful statistical tools.
Statistical measure of process capability.
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Understandwhatcustomerrequires, define the problem and set-up projectteam.
Measure the defects and map processoperation.
Analyse the data and discover rootcauses of defects.
Improve the process to remove rootcauses of defects.
Ccontrol
Control and monitor the improvement.
Iimprove
Aanalyse
Mmeasuremeasure
Ddefine
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define
define
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Six Sigma
Process
Define Measure Analyse Improve Control
SIPOC
1 Customer requirements 2 Process flow 3 Potential
VOC (Voice of the customer)
Kano model
Affinity diagram
CTQ tree
SWOTanalysis
Pareto diagram
First pass yield
Tree diagram
Process maps
Business case
SMART goals
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The purpose of business is to create and keep a customer.
Peter F. Drucker
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measure
measure
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Six Sigma
Process
Define Measure Analyse Improve Control
right measurement
4 Refined project definition 5 Capable Measurement system 6 Data collection
discrete vs. continuous
measurablespecification
normal distribution
usingMinitab
commitment of organization
Gage R&R fortransactional processes
Gage R&Rwith discrete data
Gage R&Rwith continious data
oparationaldefinition
interviews
data collectionplan
variation
sample
paretodiagram
histogram
control chartsprocess offset
test on normal
distribution
transformation
processcapability
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In God we trust, all others bring data.
William Edwards DemingAmerican Statistician, 1900-1993
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analyse
analyse
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Six Sigma
Process
Define Measure Analyse Improve Control
Learning fromY data
7 Evaluation of potential X 8 Filtering of red X1 … X7
Brainstorming
FMEA
Ishikawa
Benchmarking
Process analysis
F test
Confidence interval
Anderson Darling test
Screening
T test
ANOVALevene‘s test
Wilcoxon test
Man-Whitney test
Kruskal-Wallis test
Chi-Square test
Regression
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The structure of a system tends to mirror the structure of the group producing it.
Mel Conway April 1968, Datamation
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improve
improve
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Six Sigma
Process
Define Measure Analyse Improve Control
solution findingand verifying
9 Find Major X 10 Optimize adjustment for X
solution refinement solution testing
system optimization
design of experimentsDOE
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Nothing is more difficult to carry out, nor more doubtful of success, nor more dangerous to handle than to initiate a new order of things.
Niccolo Machiavelli
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control
control
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Six Sigma
Process
Define Measure Analyse Improve Control
processtolerances
11 Process tolerances
12 Capable measurement system
13 Capable process
buffering of Y-values;Y tolerance limits buffering of X-values;
X controll limits
Gage R&Rfor X values
Poka Yoke
suboptimal X
14 Controlled process
Out of ControlAction Plan
OCAPFMEA
Audit
qualitysystems
MPSB
processmanagement
plan
controlplan
projectclosing
processmonitoring
processmanagement with
control charts
optimalwork
instructions
feedbackcontrol
improvedprocesscapability
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Control your own destiny or someone else will.
Jack Welch
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Bonus slides
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requirement topic CTQs measurement goal
customerrequirement
quality
time
cost
CTQ tree (Critical-to-Quality)
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