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SixSigma

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• Six sigma is a business statistical Strategy.

• Is to identifying defects and removingthem from the process of products toimprove quality.

• A defect is dened as any process output

that does not meet customerspecications.

• Statistical measure to objectively evaluateprocesses.

What is six sigma..????

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• he Six sigma !as founded by #otorola in

the 1$%&s.• 'ut of senior executive Art Sundry(s

criticism of #otorola)s bad quality.

• hey founded a connection bet!een

increases in quality and decreases in costsof production.

• Bill Smith, *+ather of six sigma,

introduce this quality improvement#ethodology to #otorola.

History of six sigma

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• uality management program developed by #otorolain the 1$/&s.

• #anagement philosophy focused on business processimprovements to0

liminate !aste re!or3 and

mista3esIncrease customer satisfaction

Increase protability and

competitiveness

Six Sigma Denition

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Six Sigma Methods

DMAIC

DMADV

• Dene• Measure• Analy5e• Improve

• Control

• Dene• Measure• Analy5e• Design•

 Verify

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DMAIC $x%lanation

Dene 0 company must identify the customer and!hich type of a product and hope from it. heseare analy5e by using 8o! cause9e:ect diagrams

chec3 sheets pareto analysis.

Measure 0 company !ill collect the baseline datato determine !here the process stands ascompare to !here it needs to be. And also see

the critical to quality characteristics an estimatecurrent process capability. hen nd out thecurrent sigma level according to those identiedcharacteristic that are mostly important to the

customer

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;#AI< cont=.Analy5e 0 this sho!s the amount ofimprovement necessary to ma3e the

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;#AI< cont=.

Control 0 measures are implemented to ensureimprovements are maintained. o monitor theprocess improvements basically use tools li3estatistically process control charts. hese charts

have three limits the center line for theaverage. #onitor the process to ensure that theprocess is in the control limits.

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MADV $x%lanation

&his method is also #alled D'SS (Design'or Six Sigma)And ha*e *e %hases,

Defne design goals that are consistent !ithcustomer demands and the enterprisestrategy.M

easure and identify characteristicsthat are Critical &o uality? productcapabilities production process capabilityand ris3s. Analyze to develop and design alternatives

create a high@level design and evaluate

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;#A; cont=.

•  Design details optimi5e the design and plan fordesign verication. his phase may requiresimulations.

•  V eriy  the design set up pilot runs implementthe production process and hand it over to theprocess o!ner>s?.

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tisti#al *ie+ of Six Sig

Between -1 and +1Standard Deviation 68.3% (about twothirds)

Between -2 and +2

Standard Deviation95.5% (about 95%)

Between -3 and +3

Standard Deviation99.%

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Im%lementing oles

•xecutive Beadership >

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m%lemented Methodologies

&otal!alityManagement

-ero

defe#ts

Si x  Si gma

!ality

Control

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+ocus of Six Sigma

• Accelerating fast brea3throughperformance

• Signicant nancial results in 4@/

months• nsuring Six Sigma is an extension

of the