total quality quality
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Total Quality
Management
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Introduction
Total Quality Management (TQM) can be a confusing concept, partly because people view
quality in relation to differing criteria based on their individual roles in the value chain, such as:
perfection
delighting or pleasing the customer
eliminating waste
doing it right the first time
Consistency
Quality expressed both in terms of absolute & relative concept
efinition of Quality
Oxford Dictionary
The degree of excellence
ISO 9000
Degree to which a set of inherent characteristics fulfils requirements.
Philip Crosby
Conformance to specification
Juran
Fitness for use
Japanese Industrial Standards (JIS)
Totality of proper characteristics of performance which are the objects of
estimation to determine whether a product or service satisfies the purpose of
use or not.
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What is Quality
FEIGENBAUM (1983) DEFINED QUALITY AS FOLLOWS
Quality is total composite product (goods and services) characteristics, through which
the product in use will meet the needs and ex
pectations of the customers.
Concept of quality must start with identification of customer quality requirements and
must end only when the finished product is placed into the hands of the customer who
remains satisfied through various stages of relationship with the seller
American Society of Quality Control (ASQC) and American National Standard Institute (ANSI)
defined
Quality is totality of features and characteristics of product (goods and services) that
bears on its ability to satisfy given needs
Approaches to define Quality
Transcendent ( excellence)Approach
Quality is absolute and universally recognisable.
It relates to high standards & zero defects.
There is no subjective judgement and is estimated by looking at the product
Product Based (amount of desirable attribute)Approach
Attributes of a particular product in a specific category
These attributes are accepted as bench of quality by the industry
Others in the same industry try to produce close to this quality
Value Based Approach
Quality is viewed in context of price
Quality is satisfactory, if it provides desired performance at an acceptable price
Customer looks at the total value proposition and not the price alone
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Dimensions of Quality
Performance primary characteristics of the product or service
Aesthetics - appearance, feel, smell, taste
Special features secondary characteristics, added features
Conformance meeting specifications or industry standards
Safety - risk of injury or harm
Reliability - consistency of performance over time
Durability - useful life of the product or service
Perception - reputation
Service after the sale - handling of complaints, customer satisfaction
Service Quality
1. Time & Timeliness
customer waiting time, completed on time
2. Completeness
customer gets all they asked for
3. Courtesy
treatment by employees
4. Consistency
same level of service for all customers
5. Accessibility & Convenience
ease of obtaining service
6. Accuracy
performed right every time
7. Responsiveness
reactions to unusual situations
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Two Aspects of Quality
Quality of design measures how closelythe characteristics of products or services meet the
needs and wants of customers.
Conformance quality refers to the performance of a product or service according to design and
product specifications.
Benefits of Quality
Gives positive company image
Improves competitive ability
Increase market share & net profits
Reduces cost
Improves employee morale
Improves productivity.
Quality is
Q - Quest for excellence
U - Understanding customer needs
A - Action to achieve customer satisfaction
L - Leadership
I Involvement of people
T Team spirit
Y Yardstick to measure performance.
Quality cost
It is a technique by which all costs pertaining to delivering quality is captured & classified for
evaluation of quality management efforts in an organization
By expressing in monetary terms, top mgmt attention is captured.
Can be used for motivational purpose for improvement at all levels
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Cost of Quality
Prevention Cost
Cost associated with time spend in planning the quality system to prevent quality
defects & problem cropping up.
Consists of the following
Cost incurred in accumulation & continued evaluation of customer needs
Training Costs( employees, vendor development)
Quality control procedures, quality improvement programs
Ex
tra attention in design & production.
Appraisal / inspection Costs
Object is to find defects which have already occurred or make sure that a given level of
quality is being met
Consist of
Cost of maintaining, testing & inspection( in line, final, field inspection)
Process control costs
Internal Failure Cost
Incurred due to non-conformance
Include
Scrap and rework costs
Cost of corrective action
Down time
Material/ product losses
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External Failure Cost
Occur when poor products reach customer
Include
Costs of customer complaints and returns
Product recall costs
Warranty claims costs
Product liability costs
penalties
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Evolution of Quality Management
Mass Inspection
Inspecting
Sorting
Grading
Rectifying
Rejecting
Quality Control
Quality manuals
Product testing using SQC
Basic quality planning
Quality Assurance
Emphasis on prevention
Proactive approach using SPC
Advance quality planning
Total Quality Control
All aspects of quality of inputs
Testing equipments
Control on processes
Evolution of Quality Management
Company wide Quality Control
Measured in all functions connected with production such as
R&D
Design
Engineering
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J M Juran Developed the idea of trilogy
Quality Planning
Quality Improvement
Quality Control
Conformance to specifications is necessary but not sufficient requirement of a product.
Fitness for use by the consumer of the targeted market segment is an essential requirement in
addition to conformance
Quality Planning:
Quality does not happen by accident, it must be planned.
Identify the customers both external and internal.
Determine customer needs & translate it into a language everybody can understand.
Establish quality goals that meet the needs of customers and suppliers alike, and do so at a
minimum combined cost.
Optimize the product by developing & optimizing the process which produces this product.
Prove process capabilityprove that the process can meet the quality goals under operating
conditions.
Quality Control
Control is the process of detecting & correcting adverse change, as soon as it happens, so that
the status quo is maintained.
Conforming to quality specifications & adhering to standards & procedures require prompt
corrective action of any sporadic problems.
Only a process in control is predictable & hence receptive to efforts for further improvement.
Resulting in reduction of chronic waste.
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Quality improvement
A Quality break through is needed to reduce substantially the chronic waste & achieve a new
improved zone of quality control
Quality break through takes us to an unprecedented level of performance, reducing incidence of
chronic defects & their associated cost.
Clear priorities for projects to be set & responsibility for guiding the projects has to be assigned.
Otherwise no desire for improvement.
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Demings 14-point
Management Philosophy1. Create constancy of purpose for continual improvement of products & service
Obligation that management should accept as a number one priority
Create & publish the aims & purpose of the organization
Set the course today in order to be in business tomorrow by setting long term goals.
Resources must be allocated for research, training & continuing education to achieve
the goals.
Innovation must be promoted to ensure that the product & service does not become
obsolete.
Cease dependence on inspection to achieve quality
Management must understand that the purpose of inspection is to improve the process
& reduce its cost.
Reduce the need for inspection on a mass basis by building quality into the system in the
first place.
Mass inspection is managing for failure & defect prevention is managing for success.
2. Adopt the new philosophy for economic stability
A change is necessary in the old mgmt methods which are no longer effective for todays
business environment.
Organization must seek never ending improvement & refuse to accept non conformance.
Concentrate on defect prevention rather than defect detection
Every one in the organization including suppliers must be involved in the quality journey &
change his / her attitude about quality
New mgmt philosophy is not just an additional new technique to supplement existing ones.
It is a radical philosophy advocating a complete change.
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3. Cease dependence on inspection to achieve quality
Management must understand that the purpose of inspection is to improve the process
& reduce its cost.
Reduce the need for inspection on a mass basis by building quality into the system in the
first place.
Mass inspection is managing for failure & defect prevention is managing for success.
4. End the practice of awarding business on price tag alone
Move towards quality of product, reliability of delivery and willingness to cooperate
and improve. Build partnerships.
The savings that can result from a relationship with a reliable supplier can by far
outstrip the savings attainable by merely going for the lowest price.
Move towards a single supplier for any one item or service, making them a partner in a
long-term relationship of loyalty and trust.
Also supplier will be encouraged & can easily convinced to adopt a philosophy of
continuing improvement, open & honest communication & feedback.
5. Improve constantly & for ever the system of production & service
Search continually for problems, in order to improve quality & productivity constantly &
decrease cost
Always anticipate trouble & never be content( prevent rather than fire-fight). The
process of quality improvement should spiral towards a specific objective.
It is managements job to work continually on the system so that innovation can
materialize more easily.
All functions in an organization need to become quality conscious to deliver a quality
product.
6. Institute training on the job
A continuous programme of on the job training needs to be instituted & this should
include even top managers.
Training & education are the corner stones of greater consistency.
Training helps employees to perform their jobs in the best possible manner & also
better understanding of the job.
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7. Adopt & institute modern methods of supervision & leadership
Efforts should be focused on helping people & machines to do a better job
Supervision must change from chasing, to coaching and support. use mistake to learn
rather than to blame.
Leadership & supervision should concentrate on making the workers take more interest
in their work
Various abilities should be identified & properly utilized .
Promote team work & mutual trust & provide innovative methods to accomplish the
improvement
8. Drive out fear & create trust
Management must encourage open, effective communication & team work.
Fear is a barrier to improvement & innovation
Management should create a secured environment by driving out uncertainty,
ambiguity, & randomness in management practices .
Successful joint working relationships, based on mutual respect & cooperation, can
achieve much more.
9. Remove barriers between departments & individuals
Work as a team, foresee problems before they arise or tackle them if they happen to
arise.
Performance of dept should be evaluated in terms of its contribution to the company as
a whole
Deming believe that the common causes of problems which affect every body amount
to more than 85% of the total causes.
People involved in diff levels need to realize that they each have to contribute to the
common goal.
10.Eliminate exhortation for the work force
Exhortations that ask for increased productivity without providing specific improvement
methods can handicap an organization
Eliminate slogans, exhortations, and targets that ask for zero defects, and new levels of
productivity. Slogans do not build quality systems.
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11.Eliminate quotas and numerical targets
Eliminate management by objective. Management must learn the capabilities of the
process & how to improve them.
Quotas and goals (such as schedule) address numbers - not quality and methods.
Replace numerical targets & focus on continuous improvement & customer satisfaction
No are important but not arbitrary.
12.Remove barriers that prevent employees having pride in the work that they perform
Loss of pride in workmanship exists throughout organization because
Workers do not know how to relate to the organization mission
They are blamed for system problems
Poor design leads to production junk
Inadequate training
Inadequate or ineffective equipment is provided for performing the required work
Eliminate physical & mental obstacles such that morale of the employee improves.
Without pride there is no joy in work
13.Encourage education and self-improvement for everyone
Encourage continual training to keep up with new developments, changes in product
design& machinery & innovative techniques.
Educating gives employees a sense of security.
Also Companies gain because of less brain-drain, & less waste of effort
14.Publish top managements permanent commitment to continuous improvement of quality and
productivity
Mgmt has to accept primary responsibility for never ending improvement
Has to create a corporate structure to implement the philosophy
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PDCA cycle
The basic Plan-Do-Study-Act( PDSA) cycle was first developed by Shewhart & then modified by
Deming.
It is an effective quality improvement technique & problem solving method.
The four steps in the cycle are exactly as stated.
First , plan carefully what is to be done.
Second carry out the plan ( do it)
Third check the result- did the plan work as intended or any variations are there
Finally act on the results by identifying what worked as planned & what didnt
Develop an improved plan & repeat the cycle.
PDCA is considered as a foundation in Toyota production system.
Plan
Identify & prioritize opportunities for improvement
Prioritize
Based on the importance
Will problem solution contribute to the attainment of goals
Can the problem be defined clearly using objective measure.
Analyze the process
Understand the current process
Define process boundaries, customers, suppliers, process flow
Determine levels of customer satisfaction , gather data & identify root causes.
Develop the optimal solution(s)
Create new processes
Combine diff processes
Modify the existing process
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Do implement the change
Prepare the implementation plan, obtain approval & implement the process
Implementation plan describe
Why will it be done
How will it be done
When will it be done
Who will do it
Where will it be done
Check study the results
Studying the effectiveness of the improvement efforts through data collection & review
of the progress
See if any unforeseen problems have developed
If not satisfied then some of the process.
Act standardize the solution
institutionalize the process through certification
Provide cross training
Plan for the future
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WEDeming PDCACycle
Quality Control Circles
Support structure consist of
Steering committee of top management
Provide guideline, suggest problems, receive recommendations, & follow up
implementation
Facilitators
One for several circles
They provide training for the leaders & support the training programmers for the
members
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Circle leaders
Often an area supervisor
Help training the members in problem identification & solution methods, & preparing
an effective presentation to Mgmt.
Circle members
Typical circle has 6 to 10 members
Volunteers from the regular work force
Given one hour of company time weekly to carry out discussion
Trained in techniques of brain-storming & identifying causes
Based on preliminary findings, the group focuses on a problem & work out a solution &
a strategy to implement
There are more than 170000 registered QCC with JUSE( union of Japanese scientist & engineers)
Estimated that there are at least 3 mn workers in Japan involved in QC
QC activities are interconnected in a nation wide network
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The 7 QC Tools
There are 7 basic tools available to assist the operations manager in the improvement process.
These tools help identify and quantify the opportunities for improvement. They include:
Check sheets
Flowcharts
Scatter diagrams
Histograms
Pareto Analysis
ControlCharts
Cause and effect diagrams
The QC New 7 Tools
(1) Affinity Diagram
(2) Relations Diagram
(3) Tree Diagram
(4) Matrix Diagram
(5) Arrow Diagram
(6) Process Decision Program Chart (PDPC)
(7) Matrix Data Analysis Method
Check sheet
A check sheet is a simple tool for recording the reasons a process maynot be performing
as expected.
It is a simple observational method which organizes and determines the frequency of
reasons.
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Some uses
It Distinguishes b/w fact & opinion
It gathers data about how often problem occurs
It gathers data about the type of the problem that occurs.
Histogram
A histogram is a simple graphical tool which can be used to identify the frequency of a cause of
variation.
The histogram is the result of the process of identifying types of variation observed.
Helps to prioritize the causes.
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Scatter Diagram
Scatter diagram are graphical tools that attempt to depict the influence that one variable has on
the others.
Helps us to find out whether there is a correlation between the variables.
Often used to find the causes of problems.
E.g. cutting speed & tool life, training & errors.
Process Flow Diagram
Process mapping to identify the sequence of activities or flow of materials/ information in a
process.
Flow diagram make it easy to visualize the entire system, identify potential trouble spots, &
locate control activities.
Basically answer the question, who is the next customer.
Pareto Charts
Developed by Mr. Alfredo Pareto ( 1848- 1923) for studying unequal distribution of
wealth
Later adapted by Dr. Joseph Juran. On the phrases vital few & Useful many.
They are actually histograms aided by the 80/20 rule
80% of the problems are created by approximately 20% of the causes.
Pareto Diagram is a graph that ranks data classification in descending order from left to
right.
Pareto charts are used to identify and prioritize problems to be solved.
Cause & Effect Diagram
Developed by Dr. Kaoru Ishikawa in 1943
Represent chain of relationships; often called asfishbone diagram.
C&E diagram is a picture composed of lines & symbols designed to represent a meaningful
relationship b/w an effect & its causes.
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.
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Need for New Tools
The focus is on the managers
The new techniques are mainly qualitative with the purpose of organize large amt of data,
create hypothesis, clarify interrelationship & establish priorities.
This techniques were first presented as a collection In 1979, the Union of Japanese Scientists
and Engineers (JUSE).
Work in conjunction with original Basic Seven Tools
Used together increases TQM effectiveness
Affinity diagram (or) Affinity Chart (or) K-J method
It was created in the 1960s by Japanese anthropologist Jiro Kawakita.
organizes a large number of ideas into groups based on their natural relationships
This method taps a teams creativity and intuition.
Efficient & creative way to gather & organize large amount of qualitative data and to find
solutions.
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Six Sigma
SixSigma is a business improvement approach that seeks to find and eliminate causes of defects
and errors in manufacturing and service processes by focusing on outputs that are critical to
customers and results in a clear financial return for the organization.
Used by companies including Motorola, Allied Signal, Texas Instruments, and General Electric.
Defects
It defects any mistakes or errors that are passed on to the customer(many people also use the term
nonconformance).
Defects per unit (DPU)=Number of defects discove
Number of units processed
The Six Sigma concept characterizes quality performance by defects per million opportunities
(dpmo), computed as DPU v 1,000,000 opportunities for error (or, as is often used in services,
errors per million opportunities epmo).
If the average number of bags per customer is 1.6, and the airline recorded 3 lost bags for 8,000
passengers in one month (note: 12,800 opportunities for error in one month), then
A DPU measure might be lost bags per customer. However, customers may have different
numbers of bags; thus the number of opportunities for error is the average number of bags per
customer.
epmo = (3/8,000 DPU) v 1,000,000/1.6 = 234.375
1. Define: identify customers and their priorities; identify and define a suitable project; identify
CTQs (critical to quality characteristics).
2. Measure: determine how to measure the process and how it is performing; identify key internal
processes that influence CTQs and measure current defects.
3.Analyze: determine likely causes of defects and understand why defects are generated by identifying
key variables that cause process variation.
4.Improve: identify means to remove causes of defects; confirm key variables; modify the process to
stay within acceptable range.
5.Control: determine how to maintain improvements; put tools in place to ensure that key variables
remain within acceptable ranges under the modified process.
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Demings Prize
Establish in 1950 originally for Japanese companies for major advances in quality improvement
Demings Prize is given under Japanese Union of Scientists & Engineers
These days Demings Prize is awarded to non Japanese companies and even individuals
2001 Sundram Brake Linings, the worlds first friction material company to win
2008 Tata Steel is the first integrated steel plant in Asia to win
Awarded by the Union of Japanese Scientists and Engineers
Recognizes companies that have demonstrated successful quality improvement programs
All (not just Japanese) firms are eligible
Four top-management activities recognized
Senior management activities
Customer satisfaction activity
Employee involvement activities
Training activity
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Malcolm Baldrige National Quality Award
MBNQA is given by United States National Institute of Standards and Technology
Original stated purpose of the award were
promote quality awareness
recognise quality achievements of the US companies
publicise successful quality strategies
Current award criteria are stated
To help improve organizational performance practices, capabilities and results
To facilitate communication and sharing of the best practice information among US
organizations of all types
To serve as a working tool for understanding and managing performance and for
guiding planning and opportunities for learning
The categories are
Leadership
Strategic Planning
Customer & Market Focus
Measurement, Analysis and Knowledge Management
Workforce Focus
Process Management
Results
The Malcom Baldridge Award - The Malcolm Baldrige NationalQuality
Award is the centerpiece of the Baldrige National Quality Program. This award, which since 1988
has been presented annually by the President to recognize performance excellence, focuses on
an organization's overall performance management system. It does not certifyproductor
service quality.
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Categories For The Baldridge Award
Business: Manufacturing companies or subsidiaries that produce andsell manufactured
products or manufacturing processes or produce agricultural, mining, or construction products.
Healthcare:
Education:
Characteristics OfABaldridgeWinner
The major characteristics of a Malcolm Baldridge Winner are companies/organizations who
have:
formulated a vision of what they thought quality is and how they would achieve it.
senior management involvement
carefully planned and organized their quality effort to be sure it would be effectively
initiated.
vigorously controlled the overall process.
The Criteria include leadership, strategic planning, customer & market focus, information &
analysis, human resource development & management, process management and business
results.
Leadership - The organizations leadership system and senior leaders personal leadership
StrategicPlanning - Howthe organization sets strategic directions and how it develops the
critical strategies and action plans
Customer and MarketFocus - Howthe companydetermines requirements, expectations, and
preferences of customers and markets
Information and Analysis - The selection, management, andeffectiveness of use of information
and data to support key company processes and action plans, and the companys performance
management system
Human Resource Focus - Howthe companyenables employees to develop and utilize their full
potential, aligned with the companys objectives
Process Management - Howkeyprocesses are designed, implemented, managed, and
improved
Business Results - The organizations performance and improvementin key business areas
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The Deming Prize - The Union of Japanese Scientists and
Engineers (JUSE) invited Dr. Deming to Japan in July1950.He held a series of lectures and
seminars during which he taught the basic principles of statistical quality control to executives,
managers and engineers of Japanese industries. His teachings made a deep impression on the
participants' minds and provided great impetus in implementing quality control in Japan.
In appreciation, JUSE created a prize to commemorateDr.Deming's contribution and
friendship and to promote the continued development of quality control in Japan. The prize was
established in 1950 and annual awards are still given each year.
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Quality Certifications
ISO - InternationalOrganization forStandardization - purpose is to promote worldwide
standards that will improve operating efficiency, improve productivity, and reduce costs
Truly international in scope
Certification required by many foreign firms
ISO 9000 series - qualitymanagement and assurance
ISO 9001 ~ Suppliers and Designers
ISO 9002 ~ Production
ISO 9003 ~ Inspection and Test
ISO 9004 ~ Quality Management
ISO 14000 - environmentalperformance