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Introduction to Quality
Seth Medical and Safety Products (Pvt) Limited, Sri Lanka.
Outline
 What is Quality?
 History of Quality Methodology
 Deming’s Principles
 Taguchi’s Contributions And Philosophy
 Total Quality Management
 Quality Improvement Tools
 Costs related to quality
 Benefits/Drawbacks
What is Quality?
What does the word “quality” mean to
you?
 Think about your past experiences staying at
various hotels. Did you stay at a “quality”
hotel? What about the experience made it a
“quality” experience for you?
 Think about a product you bought. How can
you define its “quality”?
Dimensions of Quality
Garvin (1987)
1. Performance:
 Will the product/service do the intended job?
1. Reliability:
 How often does the product/service fail?
1. Durability:
 How long does the product/service last?
1. Serviceability:
 How easy to repair the product / to solve the
problems in service?
Dimensions of Quality
5. Aesthetics:
 What does the product/service look/smell/sound/feel
like?
5. Features:
 What does the product do/ service give?
5. Perceived Quality:
 What is the reputation of the company or its
products/services?
5. Conformance to Standards:
 Is the product/service made exactly as the
designer/standard intended?
Quality in different areas of society
Area Examples
Airlines On-time, comfortable, low-cost service
Health Care
Correct diagnosis, minimum wait time, lower
cost, security
Food Services Good product, fast delivery, good environment
Postal Services fast delivery, correct delivery, cost containment
Academia
Proper preparation for future, on-time
knowledge delivery
Consumer Products Properly made, defect-free, cost effective
Insurance Payoff on time, reasonable cost
Military Rapid deployment, decreased wages, no graft
Automotive Defect-free
Communications Clearer, faster, cheaper service
What is Quality?
 Conformance to specifications (British Defense
Industries Quality Assurance Panel)
 Conformance to requirements (Philip Crosby)
 Fitness for purpose or use (Juran)
 A predictable degree of uniformity and dependability, at
low cost and suited to the market (Edward Deming)
 Synonymous with customer needs and expectations (R
J Mortiboys)
 Meeting the (stated) requirements of the customer- now
and in the future (Mike Robinson)
 The total composite product and service characteristics
of marketing, engineering, manufacturing and
maintenance through which the product and service in
use will meet the expectations by the customer
(Armand Feigenbaum)
What is Quality?
 “The degree to which a system, component, or
process meets
(1) specified requirements, and
(2) customer or users needs or expectations” – IEEE
 The totality of features and characteristics of a
product or service that bears on its ability to satisfy
stated or implied needs” – ISO 8402
 Degree to which a set of inherent characteristics
fulfils requirements – ISO 9000:2000
10
Definitions of Quality
 Transcendent definition: excellence
 Product-based definition: quantities of
product attributes
 User-based definition: fitness for intended
use; meeting or exceeding user
expectations
 Value-based definition: quality vs. price
 Manufacturing-based definition:
conformance to specifications
More about Quality
 Realistic but demanding STANDARDS;
 Getting things RIGHT FIRST TIME; ‘It costs
less to prevent a problem than it does to
correct it’
 Influences the relationship with CUSTOMERS;
 Influences how COMPLAINTS are dealt with;
 Something to do with how things LOOK and
FEEL.
12
Modern Importance of Quality
“The first job we have is to turn out quality
merchandise that consumers will buy and keep
on buying. If we produce it efficiently and
economically, we will earn a profit.”
- William Cooper Procter
13
History of Quality Methodology
 Reach back into antiquity, especially into China,
India, Greece and the Roman Empire : skilled
crafstmanship.
 Industrial Revolution (18th century): need for
more consistent products that are mass-
produced and needed to be interchangeable.
Rise of inspection after manufacturing completed
and separate quality departments.
14
History of Quality Methodology
 Science of modern quality methodology started
by R. A. Fisher perfected scientific shortcuts for
shifting through mountains of data to spot key
ccause-effect relationships to speed up
development of crop growing methods.
 Statistical methods at Bell Laboratories: W. A.
Shewhart transformed Fisher’s methods into
quality control discipline for factories (inspired
W.E. Deming and J. M. Juran); Control Charts
developed by W. A. Shewhart; Acceptance
sampling methodology developed by H. F.
Dodge and H. G. Romig
15
History of Quality Methodology
 World War II: Acceptance of statistical quality-control
concepts in manufacturing industries (more
sophisticated weapons demanded more careful
production and reliability); The American Society for
Quality Control formed (1946).
 Quality in Japan: W.E. Deming invited to Japan to
give lectures; G. Taguchi developed “Taguchi
method” for scientific design of experiments; The
Japanese Union of Scientists and Engineers (JUSE)
established “Deming Price” (1951); The Quality
Control Circle concept is introduced by K. Ishikawa
(1960).
16
History of Quality Methodology
 Quality awareness in U.S. manufacturing industry
during 1980s: “Total Quality Management”; Quality
control started to be used as a mangement tool.
 Malcolm Baldrige National Quality Award (1987)
 International Standard Organization’s (ISO) 9000
series of standards: in 1980s Western Europe began
to use; interest increase in US industry in 1990s;
Became widely accepted today: necessary
requirement to world-wide distribution of product and
a significant competitive advantage.
17
History of Quality Methodology
 Quality in service industries, government,
health care, and education
 Current and future challenge: keep progress
in quality management alive
 To sum up: A gradual transition
Statistical
Quality
Control
Quality
Assurance
Quality
Management
Deming’s 14 Principles.
1. “Create Constancy of Purpose”
 Define the problems of today and the future
 Allocate resources for long-term planning
 Allocate resources for research and education
 Constantly improve design of product and service
1. “Adopt A New Philosophy”
 Quality costs less not more
 Superstitious learning
 The call for major change
 Stop looking at your competition and look at your customer
instead
3. “Cease Dependence On Inspection For Quality”
 Quality does not come from inspection
 Mass inspection is unreliable, costly, and ineffective
 Inspectors fail to agree with each other
 Inspection should be used to collect data for process control
Deming’s 14 Principles.
4. “End Proactive Awarding Of Business Based On PriceAlone”
 Price alone has no meaning
 Change focus from lowest inital cost to lowest cost
 Work toward a single source and long term relationship
 Establish a mutual confidence and aid between purchaser and
vendor
4. “Improve Every Process Constantly / Forever”
 Quality starts qith the intend of management
 Teamwork in design is fundamental
 Forever continue to reduce waste and continue to improve
 Putting out fires is not improvement of the process
6. “Institute Training”
 Management must provide the setting where workers can be
succesful
 Management must remove the inhibitors to good work
 Management needs an appreciation of variation
 This is management’s new role
Deming’s 14 Principles.
7. “Adopt And Institute Leadership”
 Remove barriers to pride of workmanship
 Know the work they supervise
 Know the difference between special and common cause of
variation
7. “Drive Out Fear”
 The common denominator of fear:
 Fear of knowledge
 Performance appraisals
 Management by fear or numbers
9. “Break Barriers Between Staff Areas”
 Know your internal suppliers and customers
 Promote team work
9. “Eliminate Slogans, Exhortations And Targets”
 They generate frustration and resentment
 Use posters that explain what management is doing to improve
the work environment
Deming’s 14 Principles.
11. “Eliminate Numerical Quotas”
 They impede quality
 They reduce production
 The person’s job becomes meeting a quota
11. “Remove Barriers That Rob Pride Of Workmanship”
 Performance appraisal systems
 Production rates
 Financial management systems
 Allow people to take pride in their workmanship
13. “Institute Programs For Education And Self Improvement”
 Commitment to lifelong employment
 Work with higher education needs
 Develop team building skills
13. “Put Everybody In The Company To Work For This
Transformation”
 Struggle over the 14 points
 Take pride in new philosophy
 Include the critical mass of people in the change
QUALITY DOES NOT
OCCUR BY ACCIDENT
 What does the customer actually want?
 Identify, understand and agree
customer requirements
 How are you going to meet those
requirements?
 Plan to achieve them
Deming’s Cycle
Act
A
P
D
C
Plan
Do
Check
A
P
D
C
Plan
Do
Check
A
P
D
C
What are we trying to
accomplish?
How will we know that a
change is an improvement?
AIM
MEASURE
What change can we make that
will result in improvement?
Selecting Change
Taguchi’s Contribution
 In the early 1980s, Prof. Genechi
Taguchi introduced his approach to
using experimental design for
1) Designing products or processes so that they are robust to
environmental conditions.
2) Designing/developing products so that they are robust to
component variation.
3) Minimizing variation around a target value.
 By robust, we mean that the product or process performs
consistently on target and is relatively insensitive to factors that
are difficult to control.
Taguchi Philosophy
 3 stages in a product’s (or process’s)
development:
1) System design: uses scientific and
engineering principles to determine
the basic configuration.
2) Parameter design: specific values for the system
parameters are determined.
3) Tolerance design: determine the best tolerances for
the parameters.
Taguchi Philosophy
 Recommends: statistical experimental
design methods have to be used for
quality improvement, particularly
during parameter and tolerance
design phases.
 Key component: reduce the variability around the
target (nominal) value.
Quality Management
Quality Management
Quality Planning Quality Assurance Quality Control
Criteria driven Prevention driven Inspection driven
Quality Management System: Management system to direct and
control an organisation with regard to quality – ISO 9000:2000
Quality Management Components
 Quality Planning
 It identifies the standards and determines how to
satisfy those standards.
 It lays out the roles and responsibilities, resources,
procedures, and processes to be utilized for quality
control and quality assurance.
 Quality Assurance
 It is the review to ensure aligning with the quality
standards. An assessment will be provided here.
 Planned and systematic quality activities.
 Provide the confidence that the standards will be met.
Quality Control – Inspection Driven
 Quality Control
 It addresses the assessment conducted
during Quality Assurance for corrective
actions.
 Measure specific results to determine that they
match the standards.
 Use of Statistical Process Control (SPC) : a
methodology for monitoring a process to
identify special causes of variation and signal
the need to take corrective action when
appropriate.
 SPC relies on control charts.
Quality-related costs
 Prevention costs
 activities to keep unacceptable products from
being generated and to keep track of the
process
 Appraisal costs
 activities to maintain control of the system
 Correction costs
 activities to correct conditions out of control,
including errors
Prevention costs
 Quality planning and engineering
 New products review
 Product/process design
 Process control
 Burn-in
 Training
 Quality data acquisition and analysis
Appraisal costs
 Inspection and test of incoming material
 Product inspection and test
 Materials and services consumed
 Maintaining accuracy of test equipment
Correction costs
1. Internal Failure Costs:
 Scrap
 Rework
 Retest
 Failure analysis
 Downtime
 Yield losses
 Downgrading (off-specing)
Correction costs
2. External Failure Costs:
 Complaint adjustment
 Returned product/material
 Warranty charges
 Liability costs
 Indirect costs
Cost of implementing quality management,
accreditation and quality assurance
time
c
o
s
t
correction
quality management
and assurance
total
Internal and External Benefits of
Quality
Reduces costs
Increases dependability
Increases speed
Boosts moral
Increases customer retention
Increases profit
Internal Benefits External Benefits
Customer gets correct
product or service
Correct specifications
Appropriate intangibles
Customer satisfaction
Customer retention
Link With Us……….
Contact us.
SETH MEDICAL AND SAFETY PRODUCTS (PVT) LIMITED, SRI LANKA.
- +94772009477 / +94773687864 / +94777387864
- safetysethp@gmail.com.
- http://www.sethsafety.com.

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WHAT IS QUALITY | INTRODUCTION TO QUALITY | SETH SAFETY PRODUCTS.

  • 1. Introduction to Quality Seth Medical and Safety Products (Pvt) Limited, Sri Lanka.
  • 2. Outline  What is Quality?  History of Quality Methodology  Deming’s Principles  Taguchi’s Contributions And Philosophy  Total Quality Management  Quality Improvement Tools  Costs related to quality  Benefits/Drawbacks
  • 4. What does the word “quality” mean to you?  Think about your past experiences staying at various hotels. Did you stay at a “quality” hotel? What about the experience made it a “quality” experience for you?  Think about a product you bought. How can you define its “quality”?
  • 5. Dimensions of Quality Garvin (1987) 1. Performance:  Will the product/service do the intended job? 1. Reliability:  How often does the product/service fail? 1. Durability:  How long does the product/service last? 1. Serviceability:  How easy to repair the product / to solve the problems in service?
  • 6. Dimensions of Quality 5. Aesthetics:  What does the product/service look/smell/sound/feel like? 5. Features:  What does the product do/ service give? 5. Perceived Quality:  What is the reputation of the company or its products/services? 5. Conformance to Standards:  Is the product/service made exactly as the designer/standard intended?
  • 7. Quality in different areas of society Area Examples Airlines On-time, comfortable, low-cost service Health Care Correct diagnosis, minimum wait time, lower cost, security Food Services Good product, fast delivery, good environment Postal Services fast delivery, correct delivery, cost containment Academia Proper preparation for future, on-time knowledge delivery Consumer Products Properly made, defect-free, cost effective Insurance Payoff on time, reasonable cost Military Rapid deployment, decreased wages, no graft Automotive Defect-free Communications Clearer, faster, cheaper service
  • 8. What is Quality?  Conformance to specifications (British Defense Industries Quality Assurance Panel)  Conformance to requirements (Philip Crosby)  Fitness for purpose or use (Juran)  A predictable degree of uniformity and dependability, at low cost and suited to the market (Edward Deming)  Synonymous with customer needs and expectations (R J Mortiboys)  Meeting the (stated) requirements of the customer- now and in the future (Mike Robinson)  The total composite product and service characteristics of marketing, engineering, manufacturing and maintenance through which the product and service in use will meet the expectations by the customer (Armand Feigenbaum)
  • 9. What is Quality?  “The degree to which a system, component, or process meets (1) specified requirements, and (2) customer or users needs or expectations” – IEEE  The totality of features and characteristics of a product or service that bears on its ability to satisfy stated or implied needs” – ISO 8402  Degree to which a set of inherent characteristics fulfils requirements – ISO 9000:2000
  • 10. 10 Definitions of Quality  Transcendent definition: excellence  Product-based definition: quantities of product attributes  User-based definition: fitness for intended use; meeting or exceeding user expectations  Value-based definition: quality vs. price  Manufacturing-based definition: conformance to specifications
  • 11. More about Quality  Realistic but demanding STANDARDS;  Getting things RIGHT FIRST TIME; ‘It costs less to prevent a problem than it does to correct it’  Influences the relationship with CUSTOMERS;  Influences how COMPLAINTS are dealt with;  Something to do with how things LOOK and FEEL.
  • 12. 12 Modern Importance of Quality “The first job we have is to turn out quality merchandise that consumers will buy and keep on buying. If we produce it efficiently and economically, we will earn a profit.” - William Cooper Procter
  • 13. 13 History of Quality Methodology  Reach back into antiquity, especially into China, India, Greece and the Roman Empire : skilled crafstmanship.  Industrial Revolution (18th century): need for more consistent products that are mass- produced and needed to be interchangeable. Rise of inspection after manufacturing completed and separate quality departments.
  • 14. 14 History of Quality Methodology  Science of modern quality methodology started by R. A. Fisher perfected scientific shortcuts for shifting through mountains of data to spot key ccause-effect relationships to speed up development of crop growing methods.  Statistical methods at Bell Laboratories: W. A. Shewhart transformed Fisher’s methods into quality control discipline for factories (inspired W.E. Deming and J. M. Juran); Control Charts developed by W. A. Shewhart; Acceptance sampling methodology developed by H. F. Dodge and H. G. Romig
  • 15. 15 History of Quality Methodology  World War II: Acceptance of statistical quality-control concepts in manufacturing industries (more sophisticated weapons demanded more careful production and reliability); The American Society for Quality Control formed (1946).  Quality in Japan: W.E. Deming invited to Japan to give lectures; G. Taguchi developed “Taguchi method” for scientific design of experiments; The Japanese Union of Scientists and Engineers (JUSE) established “Deming Price” (1951); The Quality Control Circle concept is introduced by K. Ishikawa (1960).
  • 16. 16 History of Quality Methodology  Quality awareness in U.S. manufacturing industry during 1980s: “Total Quality Management”; Quality control started to be used as a mangement tool.  Malcolm Baldrige National Quality Award (1987)  International Standard Organization’s (ISO) 9000 series of standards: in 1980s Western Europe began to use; interest increase in US industry in 1990s; Became widely accepted today: necessary requirement to world-wide distribution of product and a significant competitive advantage.
  • 17. 17 History of Quality Methodology  Quality in service industries, government, health care, and education  Current and future challenge: keep progress in quality management alive  To sum up: A gradual transition Statistical Quality Control Quality Assurance Quality Management
  • 18. Deming’s 14 Principles. 1. “Create Constancy of Purpose”  Define the problems of today and the future  Allocate resources for long-term planning  Allocate resources for research and education  Constantly improve design of product and service 1. “Adopt A New Philosophy”  Quality costs less not more  Superstitious learning  The call for major change  Stop looking at your competition and look at your customer instead 3. “Cease Dependence On Inspection For Quality”  Quality does not come from inspection  Mass inspection is unreliable, costly, and ineffective  Inspectors fail to agree with each other  Inspection should be used to collect data for process control
  • 19. Deming’s 14 Principles. 4. “End Proactive Awarding Of Business Based On PriceAlone”  Price alone has no meaning  Change focus from lowest inital cost to lowest cost  Work toward a single source and long term relationship  Establish a mutual confidence and aid between purchaser and vendor 4. “Improve Every Process Constantly / Forever”  Quality starts qith the intend of management  Teamwork in design is fundamental  Forever continue to reduce waste and continue to improve  Putting out fires is not improvement of the process 6. “Institute Training”  Management must provide the setting where workers can be succesful  Management must remove the inhibitors to good work  Management needs an appreciation of variation  This is management’s new role
  • 20. Deming’s 14 Principles. 7. “Adopt And Institute Leadership”  Remove barriers to pride of workmanship  Know the work they supervise  Know the difference between special and common cause of variation 7. “Drive Out Fear”  The common denominator of fear:  Fear of knowledge  Performance appraisals  Management by fear or numbers 9. “Break Barriers Between Staff Areas”  Know your internal suppliers and customers  Promote team work 9. “Eliminate Slogans, Exhortations And Targets”  They generate frustration and resentment  Use posters that explain what management is doing to improve the work environment
  • 21. Deming’s 14 Principles. 11. “Eliminate Numerical Quotas”  They impede quality  They reduce production  The person’s job becomes meeting a quota 11. “Remove Barriers That Rob Pride Of Workmanship”  Performance appraisal systems  Production rates  Financial management systems  Allow people to take pride in their workmanship 13. “Institute Programs For Education And Self Improvement”  Commitment to lifelong employment  Work with higher education needs  Develop team building skills 13. “Put Everybody In The Company To Work For This Transformation”  Struggle over the 14 points  Take pride in new philosophy  Include the critical mass of people in the change
  • 22. QUALITY DOES NOT OCCUR BY ACCIDENT  What does the customer actually want?  Identify, understand and agree customer requirements  How are you going to meet those requirements?  Plan to achieve them
  • 23. Deming’s Cycle Act A P D C Plan Do Check A P D C Plan Do Check A P D C What are we trying to accomplish? How will we know that a change is an improvement? AIM MEASURE What change can we make that will result in improvement? Selecting Change
  • 24. Taguchi’s Contribution  In the early 1980s, Prof. Genechi Taguchi introduced his approach to using experimental design for 1) Designing products or processes so that they are robust to environmental conditions. 2) Designing/developing products so that they are robust to component variation. 3) Minimizing variation around a target value.  By robust, we mean that the product or process performs consistently on target and is relatively insensitive to factors that are difficult to control.
  • 25. Taguchi Philosophy  3 stages in a product’s (or process’s) development: 1) System design: uses scientific and engineering principles to determine the basic configuration. 2) Parameter design: specific values for the system parameters are determined. 3) Tolerance design: determine the best tolerances for the parameters.
  • 26. Taguchi Philosophy  Recommends: statistical experimental design methods have to be used for quality improvement, particularly during parameter and tolerance design phases.  Key component: reduce the variability around the target (nominal) value.
  • 27. Quality Management Quality Management Quality Planning Quality Assurance Quality Control Criteria driven Prevention driven Inspection driven Quality Management System: Management system to direct and control an organisation with regard to quality – ISO 9000:2000
  • 28. Quality Management Components  Quality Planning  It identifies the standards and determines how to satisfy those standards.  It lays out the roles and responsibilities, resources, procedures, and processes to be utilized for quality control and quality assurance.  Quality Assurance  It is the review to ensure aligning with the quality standards. An assessment will be provided here.  Planned and systematic quality activities.  Provide the confidence that the standards will be met.
  • 29. Quality Control – Inspection Driven  Quality Control  It addresses the assessment conducted during Quality Assurance for corrective actions.  Measure specific results to determine that they match the standards.  Use of Statistical Process Control (SPC) : a methodology for monitoring a process to identify special causes of variation and signal the need to take corrective action when appropriate.  SPC relies on control charts.
  • 30. Quality-related costs  Prevention costs  activities to keep unacceptable products from being generated and to keep track of the process  Appraisal costs  activities to maintain control of the system  Correction costs  activities to correct conditions out of control, including errors
  • 31. Prevention costs  Quality planning and engineering  New products review  Product/process design  Process control  Burn-in  Training  Quality data acquisition and analysis
  • 32. Appraisal costs  Inspection and test of incoming material  Product inspection and test  Materials and services consumed  Maintaining accuracy of test equipment
  • 33. Correction costs 1. Internal Failure Costs:  Scrap  Rework  Retest  Failure analysis  Downtime  Yield losses  Downgrading (off-specing)
  • 34. Correction costs 2. External Failure Costs:  Complaint adjustment  Returned product/material  Warranty charges  Liability costs  Indirect costs
  • 35. Cost of implementing quality management, accreditation and quality assurance time c o s t correction quality management and assurance total
  • 36. Internal and External Benefits of Quality Reduces costs Increases dependability Increases speed Boosts moral Increases customer retention Increases profit Internal Benefits External Benefits Customer gets correct product or service Correct specifications Appropriate intangibles Customer satisfaction Customer retention
  • 37. Link With Us………. Contact us. SETH MEDICAL AND SAFETY PRODUCTS (PVT) LIMITED, SRI LANKA. - +94772009477 / +94773687864 / +94777387864 - safetysethp@gmail.com. - http://www.sethsafety.com.

Notes de l'éditeur

  1. presumably there are some costs for correction of mistakes now, e.g. repeating measurements. The effect of a well designed quality system is to reduce those. But they can not be totally eliminated when implementing quality assurance there is a large amount of work to be done. after implementation there is work in quality control, in documentation, in calibration (more than before?) and in keeping the system up to date this may use up all the savings from reduced correction costs, and may even increase costs a little - depending on the starting point, how cost effective the quality system is etc. in total there will probably be an increased cost but definitely there will be increased quality, if nothing else then by eliminating occasional deviations from normal routines