About. Quality

sanjaimurugesan17 44 views 38 slides May 06, 2024
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About This Presentation

Details of quality


Slide Content

Total Quality Management
Unit V

INTRODUCTION TO QUALITY

3
What is Quality?

4
What is Quality?

What is Quality?
“Quality” may be
Perfection
Consistency
Eliminating waste
Speed of delivery
Compliance with policies and procedures
Providing a good, usable product
Doing it right the first time
Delighting or pleasing customers
Total customer service and satisfaction

Defining Quality
Qualitycanbeaconfusingconcept,partlybecause
peopleviewqualityinrelationtodifferingcriteria
basedontheirindividualrolesintheproduction-
marketingvaluechain.
“getting what you pay for”
“getting more than you pay for”
“a degree or level of excellence”
“the totality of features and characteristics of a
product or service that bears on its ability to
satisfy given needs” (American National
Standards Institute (ANSI) and American Society
for Quality Control (ASQC))

7
Importance of Quality
4Costs & market
share
4Company’s
reputation
4Product
liability
4International
implications
Increased
Profits
Lower Costs
Productivity
Rework/Scrap
Warranty
Market Gains
Reputation
Volume
Price
Improved
Quality

8
DIMENSIONS OF QUALITY MANAGEMENT
Qualityingoods
Performance
Features
Reliability
Durability
Conformance
Serviceability
Aesthetics
PerceivedQuality
Tangibles
Reliability
CommunicationCredibility
Security
Responsiveness
Competence
Courtesy
Access
© 1995 Corel Corp.
Under-
standing
Quality In Services

9
Quality And Profitability
Improved Quality
of
Design
Higher
Perceived Value
Increased
Market Share
Higher
Prices
Increased
Revenues
Higher
Profitability
Improved
Quality of
Conformance
Lower
Manufacturing
And
Service Costs

QUALITY COSTS
Incurredbyanorganizationtoensurethatthe
productorservicesitprovidesconformto
customerrequirements
Costofnotmeetingthecustomer’srequirement

PAF MODEL
PREVENTION APPRAISAL
FAILURE
INTERNAL EXTERNAL

QUALITY COSTS (controllable)
Prevention costs (associated with preventing
defects from occurring)
quality planning costs;
product design costs;
process costs;
training costs;
information costs.
Appraisal costs (associated with activities designed
to uncover defects)
inspection costs;
test equipment costs;
operator costs.

QUALITY COSTS (Uncontrollable)
Internalfailurecosts(associatedwithdefective
partsorproducts)
productiontimecosts;
investigationcosts;
equipmentcosts;
reworkcosts.
Externalfailurecosts(associatedwithcorrective
actionsafterdeliveryofproductorservice)
opportunitycosts(lossofcustomergoodwill);
liability(litigation,injury,etc.);
warrantyworkandreplacementcosts;
Discountsalescosts.

Analysis Techniques for Quality Costs
ParetoAnalysis
basedonthedatacollectedoveraperiodoftime
half-yearlyoryearly
TrendAnalysis
basedondatacollectedforminimumperiodof
oneyear

Joseph M. Juran and the Cost Of Quality
2typesofcosts:
UnavoidableCosts:preventingdefects(inspection,
sampling,sorting,QC)
AvoidableCosts:defectsandproductfailures
(scrappedmaterials,labourforre-work,complaint
processing,lossesfromunhappycustomers

Juran’sModel of Optimum Quality Cost
COST PER GOOD UNIT OF PRODUCT
0
100% DEFECTIVE
100%
100% GOOD
QUALITY LEVEL
COST OF APPRAISAL + PREVENTION
FAILURE COST
TOTAL
QUALITY
COST

Joseph M. Juran and the Cost Of Quality
100% defective Point of “Enough
quality”
Total
Costs
Unavoidable
costs
Avoidable
costs
Costs

Quality Definition
•Qualityistheconformancetorequirements.
(Crosbyin1979)
•Fitnessforuse.(Juran1970)
•Thedegreetowhichasystem,component,or
processmeetsspecifiedrequirements.(IEEE)

Quality Gurus
•Walter A. Shewhrat (Father of Quality, 1920-1940s)
•Dr. W. Edwards Deming (14-points, 1945-1980s)
•Dr. Joseph M. Juran (TQM, post WWII –1980s)
•Philip Crosby (Quality is Free, 1980s)
•Kaoru Ishikawa (Fish Bone, SPC, post WWII -1980s)

Quality Movements
•JapanesewerebadlydefeatedinWorldWarII.Their
industrialandfinancialbaseswereinchaos.
•Japanhadnonaturalresourceandlimitedsourceoffoodfor
theirpeople.
•ThequalitymovementbeganinJapanin1946withtheU.S.
OccupationForce'smissiontoreviveandrestructureJapan's
communicationsequipmentindustry.
•Dr.DemingwasinvitedbytheUnionofJapaneseScientists
andEngineerstoJapanin1947.
•In1954,Dr.JosephJuranoftheUnitedStatesraisedthelevel
ofqualitymanagementfromthefactorytothetotal
organizationinJapan.

ResultsfromJapan’simplementationfromAmerican
qualityexpertsledtoanindustrialrevolutionthat
eventuallylefttheAmericanindustrylaggingbehind.
Itwasduringthelate1980sthatAmericanindustrybegan
tofinallylooktotheirqualityexpertsformethodsto
improvequality.
Inthelate1980s,anNBCdocumentarycalledIfJapanCan
WhyCan’tWebroughtnationalattentiontotheneedsfor
qualityimprovementsforglobalcompetition.
Quality Movements

History of Quality Paradigms
1-Customer-CraftqualityParadigm
Designandbuildeachproductforaparticularcustomer.
Producerknowsthecustomerdirectly.
2-Massproduction&inspectionParadigm
Focusondesigningandbuildingproductsformassconsumption.
-Pushproductsonthecustomer(limitcustomerchoices).
-Qualityismaintainedbyinspectinganddetectingbadproducts.
Majorinnovationtothisparadigm:statisticalprocesscontrol
3-TQMParadigm
Potentialcustomersdeterminewhattodesignandbuild.
Higherqualityobtainedbyfocusingonpreventingdefectsand
continuouslyreducingvariabilityinallprocesses.

TQM: A Definition
TQMisateam-basedcooperativeformofdoing
businessthatreliesontalentsandcapabilitiesto
continuallyimprovequalityandproductivity.

Continuous Improvement
(through measurement and analysis)
Customer
Focus
Process
Management
Employee Training
& Empowerment
T. Q. M.
•Reduce rework activities (Cost reduction)
•Shorter development cycle (Cost reduction)
•Increased customer satisfaction (Quality improvement)
Pillars of TQM

Pillars of TQM
1-CustomerFocus:Studyingcustomerneeds,gatheringcustomer
requirements,andmeasuringandmanagingcustomersatisfaction.
Customersatisfactionisseenasthecompany'shighestpriority.The
companybelievesthatitwillonlybesuccessfulifitscustomersare
satisfied.
2-ProcessManagement:Developaproductionprocessthatreducethe
productvariations.Applyingthesameprocess;thesameproductshould
beproduceswiththesamelevelofqualityeverytime.
Teamsareprocess-oriented,andinteractwiththeirinternalcustomersto
delivertherequiredresults.Management'sfocusisoncontrollingthe
overallprocess,andrewardingteamwork.

3-HumansideofQuality:TQMenvironmentrequiresacommittedand
well-trainedworkforcethatparticipatesfullyinqualityimprovement
activities.
On-goingeducationandtrainingofallemployeessupportsthedrivefor
quality.
4-ContinuousImprovement:TQMrecognizesthatproductqualityisthe
resultofprocessquality.Asaresult,thereisafocusoncontinuous
improvementofthecompany'sprocesses.
Thiswillleadtoanimprovementinprocessquality.Inturnthiswilllead
toanimprovementinproductquality.Measurementandanalysisidthe
toolthathasbeenusedforthat.
Pillars of TQM

Other Elements of TQM
Leadership
VisionandPlanStatement
EmployeeParticipation
RecognitionandReward
EducationandTraining
SupplierQualityManagement
PerformanceEvaluation
ProductDesign

BARRIERS TO TQM IMPLEMENTATION
Lack of management commitment
Inability to change org. Structure
Improper planning
Lack of continuous training & education.
Inadequate team work and empowerment
Inadequate monitoring
Paying inadequate attention to internal and
external customers
Non-continuous pursuing
Inadequate Use of Empowerment And Team
Work

Tools of TQM
Check sheets
Scatter diagrams
Cause-and-effect diagrams
Pareto charts
Flow charts
Histograms
Statistical process control

Tools of TQM
Tools for generating ideas
Check sheet
Scatter diagram
Cause and effect diagram
Tools to organize data
Pareto charts
Process charts (Flow diagrams)
Tools for identifying problems
Histograms
Statistical process control chart

Seven QC Tools for TQM

Usesstatistics&controlchartstotellwhento
adjustprocess
DevelopedbyShewhartin1920’s
Involves
Creatingstandards(upper&lowerlimits)
Measuringsampleoutput(e.g.meanwgt.)
Takingcorrectiveaction(ifnecessary)
Donewhileproductisbeingproduced
Statistical Process Control (SPC)

Process Control Chart

Control Chart

35
Quality
Philosophies

Deming’s Universal Fourteen points
1.Createconsistencyofpurposewithaplan
-Aim&Purpose
2.AdoptthenewphilosophyofqualityContinuous
improvement,CustomerSatisfaction,Defect
Prevention
3.Ceasedependenceonmassinspection
4.Endthepracticeofchoosingsuppliersbasedsolely
onpriceLoyaltyandTrust
5.Identifyproblemsandworkcontinuouslyto
improvethesystem.

6.Adoptmodernmethodsoftrainingonthejob
7.Changethefocusfromproductionnumbers
quantity)toquality
8.DriveoutfearCreateTrust,CreateClimatefor
innovation
9.Breakdownbarriersbetweendepartments.
OptimizeEffortsofTeam,Groups,Staff
10.Stoprequestingimprovedproductivitywithout
providingmethodstoachieveit
Deming’s Universal Fourteen points

11.Eliminateworkstandardsthatprescribe
numericalquotas.
12.Removebarrierstoprideofworkmanship
13.Institutevigorouseducationandretraining-Self
ImprovementforEveryone
14.CreateaStructureintopmanagementthatwill
emphasizetheprecedingthirteenpointsevery
day.
Deming’s Universal Fourteen points
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