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COST OF QUALITY
Prepared by-
PRASHANT TRIPATHI
CONTENTS
1. Definition- Cost of Quality!
2. History
3. What is COST OF QUALITY?
4. Categories of Quality Costs
5. Cost of Poor Quality(COPQ)
6. Impact of TQM on COQ
7. Effects of identifying COQ.
8. Goal of COQ system
9. Why measure COQ?
10. Benefits of minimizing COQ.
11. Guidelines
12. Steps in implementing Quality Costs
13. Gaining Approval
14. Case Study : H&S Motors
15. Relationship
16. Investing in Prevention costs.
17. Concluson
18. Bibliography
DEFINITION
The term “QUALITY COSTS” has different meanings to different people.
 Some equate “QUALITY COSTS” with the costs of poor quality (mainly the costs of
finding and correcting defective work).
 Others equate the term with the costs to attain quality.
 Still others use the term to mean the costs of running the Quality department.
HISTORY
• It was Joseph Juran who first discussed the cost of quality analysis in
1951 in the first edition of “Quality Control Handbook”
• And it was Armand Feigenbaum who identified
four quality cost categories in 1956 in “Total
Quality Control” in the Harvard Business Review,
Vol. 34
• The Quality Cost Committee was established by the then ASQC in
1961.
WHAT IS COST OF QUALITY?
• It is the term that is widely used and widely misunderstood.
• The "cost of quality" is not the price of creating a quality product or
service.
• It's the cost of NOT creating a quality product or service.
WHAT IS COST OF QUALITY?
Every time work is redone, the cost of quality increases.
Examples include:
• The reworking of a manufactured item.
• The retesting of an assembly.
• The rebuilding of a tool.
• The correction of a bank statement.
• The reworking of a service, such as the reprocessing of a loan operation or the
replacement of a food order in a restaurant
WHAT IS COST OF QUALITY?
Cost of quality = Cost of conformance + Cost of non-conformance
• Cost of conformance is the cost incurred in ensuring that things are done right
the first time.
• It is the cost of providing products or services as per the required standards.
• This can be termed as good amount spent. (Prevention & Appraisal costs)
• Cost of non-conformance is cost incurred as a result of not doing things right
the first time.
• It is the failure cost associated with a process not being operated to the
requirements.
• This can be termed as unnecessary amount spent.( Internal & External failure
costs)
CATEGORIES OF QUALITY COSTS
Quality Costs
COST OF
CONFORMANCE
COST OF NON-
CONFORMANCE
PREVENTIO
N COSTS
APPRAISAL
COSTS
INTERNAL
FAILURE
COSTS
EXTERNAL
FAILURE
COSTS
PREVENTION COSTS
• Prevention costs are associated with design, implementation , maintenance, and planning prior to
actual operation, in order to avoid defects from happening.
• The emphasis is on the prevention of defects in order to reduce the probability of producing
defective products.
• Prevention activities lead to reduction of appraisal costs and both type of failures ( internal and
external ).
• The motto is “Prevention rather than appraisal” .
 In the ideal situation, Prevention costs will be the
largest portion of the Total Cost of Quality
 Typically, prevention is less than 10% of Total COQ
where it should be about 70%
ACTIVITIES ASSOCIATED WITH PREVENTION COSTS
• Market Research
• Quality planning : It includes the cost associated with creating the entire quality plan , communication of quality
plans to all the employees.
• New product review :Cost of reliability and other quality related activities associated to launching new designs.
• Tolerance analysis before design release.
• Field Trials
• Cost of research and development activities , analysis and correction of causes and defects.
• Cost of training : It consists of either training the workers , supervisors and managers .Cost involved in
arranging training programs, attending technical exhibitions , seminars and conferences etc.
• Quality audits : Cost involved in evaluating the execution of activities in overall quality plans involved in the
organization.
• Cost involved in prevention of defects ,it may be technical or non-technical.
THESE ARE ALL PLANNED
PROACTIVE ACTIVITIES.
“Intellectuals solve problems.
Geniuses prevent them. ”
-- Albert Einstein
APPRAISAL COSTS
• Appraisal costs are spent to detect defects to assure conformance to quality standards.
• It is the cost expenditure on inspection and testing.
• Appraisal cost activities sums up to the “cost of checking if things are correct”.
• The appraisal costs are focused on the discovery of defects rather than prevention of defects
 Appraisal Costs should be the second largest
category, but should not exceed prevention costs
ACTIVITIES ASSOCIATED WITH APPRAISAL
COSTS
• Inspection/test of purchased material
• In-process and final inspection/test
• Product, process or service audits
• Calibration of measuring and test equipment
• Maintaining accuracy of testing equipment,performed in terms of periodic calibration.
• Cost of non-destructive testing such as electric probes,X rays,radiography etc.
THESE ARE ALL
PLANNED ACTIVITIES
INTERNAL FAILURE COSTS
• These are the failure costs occurring prior to delivery or shipment of the product, or the
furnishing of a service, to the customer.
• These are the costs that would disappear if no defect is found in the product before dispatching.
ACTIVITIES ASSOCIATED WITH INTERNAL
FAILURE COSTS
• Cost of rework , scrap , defectives , waste etc.
• Cost of re-inspection , re-tests to verify the performance analysis.
• Cost of 100% inspection.
• Changing processes: Modifying manufacturing or service processes to correct deficiencies
• Lost production due to supplier materials and own material.
EXTERNAL FAILURE COSTS
• These are the costs incurred after the product is dispatched to the consumer.
• It may include the cost to the business of providing a bad service or product and this may also
result into cancellation of order.
• These costs also would disappear if there were no deficiencies.
ACTIVITIES ASSOCIATED WITH EXTERNAL
FAILURE COSTS
• Warranty charges
• Complaint adjustment : Costs of investigation and adjustment of
justified complaints attributed to defective product or installation.
• Returned material : Costs associated with receipt and replacement of
defective product received from the field.
• Recalling of the product,due some reasons such as safety,health
,accidents etc.
• Allowances : The costs of concessions made to customers due to
substandard products accepted by the customer as is or to conforming
product that does not meet customer needs.
Quality costs
COST OF
CONFORMANCE
COST OF NON-
CONFORMANCE
PREVENTIO
N COSTS
APPRAISAL
COSTS
INTERNAL
FAILURE
COSTS
EXTERNAL
FAILURE
COSTS
COST OF POOR QUALITY (COPQ)
 The obvious and visible costs are a small
portion of the overall COPQ. The bottom
of the iceberg represents the majority of
the COPQ and are not easily identified
and quantified.
 “How much is it costing our organization
by not doing a good job on quality?” Thus
we will use the term “cost of poor quality.”
 By revealing new hidden costs of poor quality,
a company can prevent the production of a
nonconforming product.
IMPACT OF TQM ON COSTS
• TQM is primarily aimed to improve the quality of the product , higher customer satisfaction and
better working environment for the employees. The most dramatic impact of TQM is on
reduction of quality costs which directly effect the profitability .
• This is demonstrated by the results of TQM program in Xerox Corp . The change in various
elements of quality cost before and after launching TQM by Xerox Corp is shown on the next
slide.
IMPACT OF TQM ON COSTS.
prevention
Appraisal
Internal
Failure
Prevention
Appraisal
Internal
Failure
0
5
10
15
20
25
30
35
%ofsales
An example from Xerox Corp.
Before TQM After TQM
EFFECTS OF IDENTIFYING COQ
GOAL OF COQ SYSTEM
The goal of using COQ is to increase prevention activities in order to eliminate internal and external
failures and to reduce appraisal activities.
WHY MEASURE COQ?
 “When you measure what you are speaking about and express it
in numbers, you know something about it” – Kelvin
You cannot manage what you cannot measure ” – Anon
WHY MEASURE COQ?
• Measure COQ - Why?
 COQ can be used to identify quality improvement candidates
 COQ provides one measure of comparing the success of projects
 COQ can provide cost data for motivational purpose
Money is the language of management, you need to show them the numbers
- Crosby
BENEFITS OF MINIMIZING COQ…
Decreases
• Defects
• Overall Costs
• Returned Goods
• Customer Complaints
• Owner & Mgmt. Stress
• Decrease Legal Costs
Increases
• Sales
• Profit
• Capacity
• Customer Satisfaction
• Market Share
• Competitive Edge
• Employee Satisfaction
MEASURING COST OF QUALITY…
COQ data can be measured and presented in many different ways.
• % age of sales
• % age of profits
• % age of manufacturing cost
• Rs per direct labor hr
• Rs per unit of product
STEPS IN IMPLEMENTING QUALITY
COSTS
The following sequence applies to most organizations -
• 1. Review the literature on quality costs or consult others in similar industries who are using the
same tool.
• 2. Select one organizational unit of the company to serve as a pilot site. This unit may be one plant,
one large department, one product line, etc.
• 3. Discuss the objectives of the study with the key people in the organization.
• 4. Collect whatever cost data are conveniently available from the accounting system and use this
information to gain management support to make a full cost study.
• 5. Make a proposal to management for a full study. The proposal should provide for a task force of
all concerned parties to identify the work activities that contribute to the cost of poor quality.
Work records, job descriptions, flowcharts, interviews, and brainstorming can be used to identify
the activities.
STEPS IN IMPLEMENTING QUALITY
COSTS (CONTD.)
• 6. Publish a draft of the categories defining the cost of poor quality.
• 7. Finalize the definitions and secure management approval.
• 8. Secure agreement on responsibility for data collection and report preparation.
• 9. Collect and summarize the data. Ideally, this should be done by Accounting.
• 10. Present the cost results to management along with the results of a demonstration quality
improvement project (if available). Request authorization to proceed with a broader
companywide program of measuring the costs and pursuing projects.
Clearly, the sequence must be tailored for each organization.
GAINING APPROVAL…
• Establish that the costs are large enough to justify action.
- Use the grand total to demonstrate the need for quality improvement. This is the most
significant figure in a quality cost study.
- Relate the grand total to business measures.
• Estimate the savings and other benefits.
- If the company has never before undertaken an organized program to reduce quality-
related costs, then a reasonable goal is to cut these costs in two, within a space of 5
years.
- Don’t imply that the quality costs can be reduced to zero.
GAINING APPROVAL(CONTD.)
• Calculate the return on investment resulting from improvement in quality.
• Use a successful case history (a “bellwether” project) of quality improvement in the company to
justify a broader program.
• Identify the initial specific improvement projects.
• Propose the structure of the improvement program including organization,problem
selection,training, review of progress, and schedule
CASE STUDY: H&S MOTORS
• The H&S motor company produces small motors for use in lawnmowers and garden equipment.
The company instituted a quality improvement program in 1999 and has recorded the following
quality cost data and accounting measures for 4 years.
The company wants to assess its quality assurance program and develop quality index using sales
basis for the 4 year period.
KEY POINTS OF STUDY:
• Approximately 75% of the H&S’s total quality costs are a result of internal and external failures.
• In 2000 company spent more money on product monitoring and inspection that resulted into high
appraisal cost.
• With this strategy, H&S was able to identify more defective items, resulting in an apparent
increase in internal failure cost and lower external failure cost.
• In year 2001 & 2002 company spent more money on prevention activities i.e. training of
employees, redesigning the production process and planning how to build in product quality etc.
• Prevention costs increased by more than 300 % during the 4 year period resulted into decrease
in overall quality costs.
The H&S company also desired to develop index numbers using quality costs as a proportion of
sales.
Quality index no. for 1999 sales is:
= (810,400/4,360,000)*100 = 18.58 and similarly for other years:
These index no's alone provide little insight into the effectiveness of the quality management
program; however as a standard to make comparisons over time they can be useful.
RELATIONSHIP BETWEEN PREVENTION+APPRAISAL
AND FAILURE COSTS
INVESTING IN PREVENTION COSTS..
• Richard W. Anderson, former general manager of the computers systems division of Hewlett-
Packard, expresses this point in his widely cited quote explaining the damage caused by a two-
cent resistor:
• If you catch the resistor before it is used and throw it away, you lose two cents. If you don’t
catch it until it has to be soldered into a computer component, it may cost $100 to repair the part.
If you don’t catch the component until it is in a computer user’s hands, the repair cost will
amount to hundreds of dollars and may exceed the manufacturing costs.
By eliminating a defective product in the early stages of production, a company can greatly
reduce its cost of poor quality. Investing in prevention costs, therefore, is extremely important.
Is Cost related to
Prevention of Non-
Conformance?
Is Cost related to
Evaluating the
Conformance ?
Is Cost related to
Non-conformance?
Is Non-Conformance
found prior to
Shipment ?
YES
NO
PREVENTION
APPRAISAL
INTERNAL FAILURE
EXTERNAL FAILURE
Not a Quality Cost
YES
YES
NO
NO
YES
NO
CONCLUSION…
CONCLUSION
• The cost of poor quality can be reported in an endless number of ways.
• It can take a variety of different forms.
• It can represent 10% of a company’s annual sales, or it can represent 40%,
depending on how far they “peel the onion”.
CONCLUSION
• However, once quality costs are presented in the language of money,
misunderstandings evaporate and executives immediately realize the true
significance of the cost of poor quality.
• “Quality costs are dynamic and constantly changing over time.”
BIBLIOGRAPHY
• Juran Quality Control Handbok _5th edition
• Total Quality management by Dale. H. Besterfield
• www.slideshare.net/hassanasif/cost-of-quality-7563290
• https://en.wikipedia.org/wiki/Quality_costs
• http://sixsigmabasics.com/six-sigma/statistics/cost-of-quality-coq.html
• costofpoorquality-research-120625132610-phpapp02
• www.businessballs.com
THANK YOU!

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Cost of quality

  • 1. COST OF QUALITY Prepared by- PRASHANT TRIPATHI
  • 2. CONTENTS 1. Definition- Cost of Quality! 2. History 3. What is COST OF QUALITY? 4. Categories of Quality Costs 5. Cost of Poor Quality(COPQ) 6. Impact of TQM on COQ 7. Effects of identifying COQ. 8. Goal of COQ system 9. Why measure COQ? 10. Benefits of minimizing COQ. 11. Guidelines 12. Steps in implementing Quality Costs 13. Gaining Approval 14. Case Study : H&S Motors 15. Relationship 16. Investing in Prevention costs. 17. Concluson 18. Bibliography
  • 3. DEFINITION The term “QUALITY COSTS” has different meanings to different people.  Some equate “QUALITY COSTS” with the costs of poor quality (mainly the costs of finding and correcting defective work).  Others equate the term with the costs to attain quality.  Still others use the term to mean the costs of running the Quality department.
  • 4. HISTORY • It was Joseph Juran who first discussed the cost of quality analysis in 1951 in the first edition of “Quality Control Handbook” • And it was Armand Feigenbaum who identified four quality cost categories in 1956 in “Total Quality Control” in the Harvard Business Review, Vol. 34 • The Quality Cost Committee was established by the then ASQC in 1961.
  • 5. WHAT IS COST OF QUALITY? • It is the term that is widely used and widely misunderstood. • The "cost of quality" is not the price of creating a quality product or service. • It's the cost of NOT creating a quality product or service.
  • 6. WHAT IS COST OF QUALITY? Every time work is redone, the cost of quality increases. Examples include: • The reworking of a manufactured item. • The retesting of an assembly. • The rebuilding of a tool. • The correction of a bank statement. • The reworking of a service, such as the reprocessing of a loan operation or the replacement of a food order in a restaurant
  • 7. WHAT IS COST OF QUALITY? Cost of quality = Cost of conformance + Cost of non-conformance • Cost of conformance is the cost incurred in ensuring that things are done right the first time. • It is the cost of providing products or services as per the required standards. • This can be termed as good amount spent. (Prevention & Appraisal costs) • Cost of non-conformance is cost incurred as a result of not doing things right the first time. • It is the failure cost associated with a process not being operated to the requirements. • This can be termed as unnecessary amount spent.( Internal & External failure costs)
  • 8. CATEGORIES OF QUALITY COSTS Quality Costs COST OF CONFORMANCE COST OF NON- CONFORMANCE PREVENTIO N COSTS APPRAISAL COSTS INTERNAL FAILURE COSTS EXTERNAL FAILURE COSTS
  • 9. PREVENTION COSTS • Prevention costs are associated with design, implementation , maintenance, and planning prior to actual operation, in order to avoid defects from happening. • The emphasis is on the prevention of defects in order to reduce the probability of producing defective products. • Prevention activities lead to reduction of appraisal costs and both type of failures ( internal and external ). • The motto is “Prevention rather than appraisal” .  In the ideal situation, Prevention costs will be the largest portion of the Total Cost of Quality  Typically, prevention is less than 10% of Total COQ where it should be about 70%
  • 10. ACTIVITIES ASSOCIATED WITH PREVENTION COSTS • Market Research • Quality planning : It includes the cost associated with creating the entire quality plan , communication of quality plans to all the employees. • New product review :Cost of reliability and other quality related activities associated to launching new designs. • Tolerance analysis before design release. • Field Trials • Cost of research and development activities , analysis and correction of causes and defects. • Cost of training : It consists of either training the workers , supervisors and managers .Cost involved in arranging training programs, attending technical exhibitions , seminars and conferences etc. • Quality audits : Cost involved in evaluating the execution of activities in overall quality plans involved in the organization. • Cost involved in prevention of defects ,it may be technical or non-technical. THESE ARE ALL PLANNED PROACTIVE ACTIVITIES.
  • 11. “Intellectuals solve problems. Geniuses prevent them. ” -- Albert Einstein
  • 12. APPRAISAL COSTS • Appraisal costs are spent to detect defects to assure conformance to quality standards. • It is the cost expenditure on inspection and testing. • Appraisal cost activities sums up to the “cost of checking if things are correct”. • The appraisal costs are focused on the discovery of defects rather than prevention of defects  Appraisal Costs should be the second largest category, but should not exceed prevention costs
  • 13. ACTIVITIES ASSOCIATED WITH APPRAISAL COSTS • Inspection/test of purchased material • In-process and final inspection/test • Product, process or service audits • Calibration of measuring and test equipment • Maintaining accuracy of testing equipment,performed in terms of periodic calibration. • Cost of non-destructive testing such as electric probes,X rays,radiography etc. THESE ARE ALL PLANNED ACTIVITIES
  • 14. INTERNAL FAILURE COSTS • These are the failure costs occurring prior to delivery or shipment of the product, or the furnishing of a service, to the customer. • These are the costs that would disappear if no defect is found in the product before dispatching.
  • 15. ACTIVITIES ASSOCIATED WITH INTERNAL FAILURE COSTS • Cost of rework , scrap , defectives , waste etc. • Cost of re-inspection , re-tests to verify the performance analysis. • Cost of 100% inspection. • Changing processes: Modifying manufacturing or service processes to correct deficiencies • Lost production due to supplier materials and own material.
  • 16. EXTERNAL FAILURE COSTS • These are the costs incurred after the product is dispatched to the consumer. • It may include the cost to the business of providing a bad service or product and this may also result into cancellation of order. • These costs also would disappear if there were no deficiencies.
  • 17. ACTIVITIES ASSOCIATED WITH EXTERNAL FAILURE COSTS • Warranty charges • Complaint adjustment : Costs of investigation and adjustment of justified complaints attributed to defective product or installation. • Returned material : Costs associated with receipt and replacement of defective product received from the field. • Recalling of the product,due some reasons such as safety,health ,accidents etc. • Allowances : The costs of concessions made to customers due to substandard products accepted by the customer as is or to conforming product that does not meet customer needs.
  • 18. Quality costs COST OF CONFORMANCE COST OF NON- CONFORMANCE PREVENTIO N COSTS APPRAISAL COSTS INTERNAL FAILURE COSTS EXTERNAL FAILURE COSTS
  • 19. COST OF POOR QUALITY (COPQ)  The obvious and visible costs are a small portion of the overall COPQ. The bottom of the iceberg represents the majority of the COPQ and are not easily identified and quantified.  “How much is it costing our organization by not doing a good job on quality?” Thus we will use the term “cost of poor quality.”  By revealing new hidden costs of poor quality, a company can prevent the production of a nonconforming product.
  • 20. IMPACT OF TQM ON COSTS • TQM is primarily aimed to improve the quality of the product , higher customer satisfaction and better working environment for the employees. The most dramatic impact of TQM is on reduction of quality costs which directly effect the profitability . • This is demonstrated by the results of TQM program in Xerox Corp . The change in various elements of quality cost before and after launching TQM by Xerox Corp is shown on the next slide.
  • 21. IMPACT OF TQM ON COSTS. prevention Appraisal Internal Failure Prevention Appraisal Internal Failure 0 5 10 15 20 25 30 35 %ofsales An example from Xerox Corp. Before TQM After TQM
  • 23. GOAL OF COQ SYSTEM The goal of using COQ is to increase prevention activities in order to eliminate internal and external failures and to reduce appraisal activities.
  • 24. WHY MEASURE COQ?  “When you measure what you are speaking about and express it in numbers, you know something about it” – Kelvin You cannot manage what you cannot measure ” – Anon
  • 25. WHY MEASURE COQ? • Measure COQ - Why?  COQ can be used to identify quality improvement candidates  COQ provides one measure of comparing the success of projects  COQ can provide cost data for motivational purpose Money is the language of management, you need to show them the numbers - Crosby
  • 26. BENEFITS OF MINIMIZING COQ… Decreases • Defects • Overall Costs • Returned Goods • Customer Complaints • Owner & Mgmt. Stress • Decrease Legal Costs Increases • Sales • Profit • Capacity • Customer Satisfaction • Market Share • Competitive Edge • Employee Satisfaction
  • 27. MEASURING COST OF QUALITY… COQ data can be measured and presented in many different ways. • % age of sales • % age of profits • % age of manufacturing cost • Rs per direct labor hr • Rs per unit of product
  • 28. STEPS IN IMPLEMENTING QUALITY COSTS The following sequence applies to most organizations - • 1. Review the literature on quality costs or consult others in similar industries who are using the same tool. • 2. Select one organizational unit of the company to serve as a pilot site. This unit may be one plant, one large department, one product line, etc. • 3. Discuss the objectives of the study with the key people in the organization. • 4. Collect whatever cost data are conveniently available from the accounting system and use this information to gain management support to make a full cost study. • 5. Make a proposal to management for a full study. The proposal should provide for a task force of all concerned parties to identify the work activities that contribute to the cost of poor quality. Work records, job descriptions, flowcharts, interviews, and brainstorming can be used to identify the activities.
  • 29. STEPS IN IMPLEMENTING QUALITY COSTS (CONTD.) • 6. Publish a draft of the categories defining the cost of poor quality. • 7. Finalize the definitions and secure management approval. • 8. Secure agreement on responsibility for data collection and report preparation. • 9. Collect and summarize the data. Ideally, this should be done by Accounting. • 10. Present the cost results to management along with the results of a demonstration quality improvement project (if available). Request authorization to proceed with a broader companywide program of measuring the costs and pursuing projects. Clearly, the sequence must be tailored for each organization.
  • 30. GAINING APPROVAL… • Establish that the costs are large enough to justify action. - Use the grand total to demonstrate the need for quality improvement. This is the most significant figure in a quality cost study. - Relate the grand total to business measures. • Estimate the savings and other benefits. - If the company has never before undertaken an organized program to reduce quality- related costs, then a reasonable goal is to cut these costs in two, within a space of 5 years. - Don’t imply that the quality costs can be reduced to zero.
  • 31. GAINING APPROVAL(CONTD.) • Calculate the return on investment resulting from improvement in quality. • Use a successful case history (a “bellwether” project) of quality improvement in the company to justify a broader program. • Identify the initial specific improvement projects. • Propose the structure of the improvement program including organization,problem selection,training, review of progress, and schedule
  • 32. CASE STUDY: H&S MOTORS • The H&S motor company produces small motors for use in lawnmowers and garden equipment. The company instituted a quality improvement program in 1999 and has recorded the following quality cost data and accounting measures for 4 years. The company wants to assess its quality assurance program and develop quality index using sales basis for the 4 year period.
  • 33. KEY POINTS OF STUDY: • Approximately 75% of the H&S’s total quality costs are a result of internal and external failures. • In 2000 company spent more money on product monitoring and inspection that resulted into high appraisal cost. • With this strategy, H&S was able to identify more defective items, resulting in an apparent increase in internal failure cost and lower external failure cost. • In year 2001 & 2002 company spent more money on prevention activities i.e. training of employees, redesigning the production process and planning how to build in product quality etc. • Prevention costs increased by more than 300 % during the 4 year period resulted into decrease in overall quality costs.
  • 34. The H&S company also desired to develop index numbers using quality costs as a proportion of sales. Quality index no. for 1999 sales is: = (810,400/4,360,000)*100 = 18.58 and similarly for other years: These index no's alone provide little insight into the effectiveness of the quality management program; however as a standard to make comparisons over time they can be useful.
  • 36. INVESTING IN PREVENTION COSTS.. • Richard W. Anderson, former general manager of the computers systems division of Hewlett- Packard, expresses this point in his widely cited quote explaining the damage caused by a two- cent resistor: • If you catch the resistor before it is used and throw it away, you lose two cents. If you don’t catch it until it has to be soldered into a computer component, it may cost $100 to repair the part. If you don’t catch the component until it is in a computer user’s hands, the repair cost will amount to hundreds of dollars and may exceed the manufacturing costs. By eliminating a defective product in the early stages of production, a company can greatly reduce its cost of poor quality. Investing in prevention costs, therefore, is extremely important.
  • 37. Is Cost related to Prevention of Non- Conformance? Is Cost related to Evaluating the Conformance ? Is Cost related to Non-conformance? Is Non-Conformance found prior to Shipment ? YES NO PREVENTION APPRAISAL INTERNAL FAILURE EXTERNAL FAILURE Not a Quality Cost YES YES NO NO YES NO CONCLUSION…
  • 38. CONCLUSION • The cost of poor quality can be reported in an endless number of ways. • It can take a variety of different forms. • It can represent 10% of a company’s annual sales, or it can represent 40%, depending on how far they “peel the onion”.
  • 39. CONCLUSION • However, once quality costs are presented in the language of money, misunderstandings evaporate and executives immediately realize the true significance of the cost of poor quality. • “Quality costs are dynamic and constantly changing over time.”
  • 40. BIBLIOGRAPHY • Juran Quality Control Handbok _5th edition • Total Quality management by Dale. H. Besterfield • www.slideshare.net/hassanasif/cost-of-quality-7563290 • https://en.wikipedia.org/wiki/Quality_costs • http://sixsigmabasics.com/six-sigma/statistics/cost-of-quality-coq.html • costofpoorquality-research-120625132610-phpapp02 • www.businessballs.com