Quality Management and Six Sigma edited by Abdurrahman Coskun SCIYO... Chapter 1Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Preface VII Si
Trang 1Quality Management and Six Sigma
edited by
Abdurrahman Coskun
SCIYO
Trang 2Quality Management and Six Sigma
Edited by Abdurrahman Coskun
Published by Sciyo
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Copyright © 2010 Sciyo
All chapters are Open Access articles distributed under the Creative Commons Non Commercial Share Alike Attribution 3.0 license, which permits to copy, distribute, transmit, and adapt the work in any medium, so long as the original work is properly cited After this work has been published by Sciyo, authors have the right to republish it, in whole or part, in any publication of which they are the author, and to make other personal use of the work Any republication, referencing or personal use of the work must explicitly identify the original source
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First published September 2010
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Quality Management and Six Sigma, Edited by Abdurrahman Coskun
p cm
ISBN 978-953-307-130-5
Trang 3WHERE KNOWLEDGE IS FREE
free online editions of Sciyo
Books, Journals and Videos can
be found at www.sciyo.com
Trang 5Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Preface VII
Six sigma and Total Quality Management 1
Yang, Ching-Chow
Six Sigma and Developing Countries 31
Ali Rizwan, PhD
A Comprehensive Framework for Six Sigma Critical
Success Factors With an Experience in a Developing Country 43
Arash Shahin
The importance of the strategic alignment process using Six Sigma projects 53
Bianca Soares de Oliveira Gonçalves and Marcel Andreotti Musetti
Integrated model linking Maintenance Excellence,
Six Sigma and QFD for process progressive improvement 67
Maher Lazreg
Sigma-TRIZ: Algorithm for Systematic Integration of
Innovation within Six Sigma Process Improvement Methodologies 89
Stelian Brad
Design for Six Sigma (DfSS) in Software 109
Ajit Ashok Shenvi
Statistical Process Control for Software: Fill the Gap 135
Maria Teresa Baldassarre, Nicola Boffoli and Danilo Caivano
MiniDMAIC: An Approach to Cause and Analysis
Resolution in Software Project Development 155
Carla Ilane M Bezerra, Adriano B Albuquerque and Luiz Sérgio Plácido
Defining Placement Machine
Capability By Using Statistical Methods 183
Timo Liukkonen, Ph.D
Contents
Trang 6Chapter 11
Chapter 12
Chapter 13
Chapter 14
Modelling, simulation, six sigma and their
application in optimization of electrical vehicle design 207
Wei Zhan
Longitudinal Robust Stability Augmentation
for Micro air Vehicle - Design and Validation 225
Dr M Meenakshi and Prof M Seetharama Bhat
Six Sigma as a Quality Management Tool:
Evaluation of Performance in Laboratory Medicine 247
Abdurrahman Coskun, Tamer Inal, Ibrahim Unsal and Mustafa Serteser
Tesqual: A Microthesaurus for Use in
Quality Management in European Higher Education 263
María Mitre
Trang 7The history of quality is the history of human efforts to make things perfect in an imperfect
world
The main purpose of the quality procedures is to reduce errors and increase customer satisfaction Errors and mistakes are part of human nature, but so is the ability to create solutions and find better alternatives By using modern quality management tools we can shift the balance from errors towards solutions and better alternatives
Six Sigma methodology represents an evolution in quality management that is being widely implemented in industry and business in the new millennium In the mid-1980s it was developed by Motorola Inc to reduce the cost of products and eliminate defects Using Six
Sigma methodology, Motorola Inc become a quality leader and won the Malcolm Baldrige
National Quality Award in 1988
The increasing expectation of customers and the complexity of modern products forced companies to find new solutions and better alternatives during the 20th century Within this atmosphere, Six Sigma has provided the best solution in business and industry Due to its flexible nature, the Six Sigma methodology was rapidly adopted by many top companies and, within only two decades, it has also been adopted by many mid-sized and even small companies In addition to companies in Japan and Western Countries, Six Sigma methodology provides the best solutions to many problems and can be used as an accelerator in developing countries
In the new millennium Six Sigma methodology has been considered as a strategic approach to achieve excellence in business and industry It is the main way of doing business, rather than
a simple quality system Six Sigma is a philosophy and vision, and it is based on both reality and productivity The ultimate goal of Six Sigma is error-free business and industry
If you do not measure, you do not know, and if you do not know, you cannot manage This way Six Sigma shows us how to measure and, consequently, how to manage the company Sigma levels are a measure of error rates A company or a medical laboratory, and even a bank, can measure their performance by sigma level Companies that accept three or four sigma levels create 67000 and 6200 defects per million products, however, companies that accept six sigma levels create only 3.4 defects per million products
In this book several scientists from various regions of the world share their experience and knowledge about quality management and particularly Six Sigma methodology The chapters
in the book cover the basic principles of managing quality and Six Sigma methodology in many different disciplines of industry, business and even medical laboratories
Preface
Trang 8I hope that this book as a free resource will help to employees worldwide at all levels in different areas of business and industry, who need to improve their knowledge and experience
in Six Sigma and Quality Management
Editor
Dr Abdurrahman Coskun
Acibadem University, School of Medicine, Department of Medical Biochemistry,
Istanbul, Turkey
Trang 9Six sigma and Total Quality Management 1
Six sigma and Total Quality Management
Yang, Ching-Chow
X
Six sigma and Total Quality Management
Yang, Ching-Chow
Department of Industrial and Systems Engineering
Chung Yuan Christian University
Taiwan, R.O.C
1 The practices and implementation of Six Sigma
In the past two decades, Six Sigma methodology has been widely adopted by industries and
non-profit organizations throughout the world In this section, we demonstrate the
development of Six Sigma program, and discuss the features and the five steps of the
improvements
1.1 The introduction of Six Sigma
Six Sigma methodology was first espoused by Motorola in the mid 1980s (Antony &
Banuelas, 2002; Wiklund & Wiklund, 2002) At that time, Motorola was facing Japanese
competition in the electronics industry and needed to make drastic improvements in its
levels of quality (Harry and Schroeder, 2000; Linderman et al., 2003) A Six Sigma
initiative ,which is originally focused on manufacturing process and product quality (Harry
& Schroeder, 2000), is also designed to change the culture in an organization through
breakthrough improvement in all aspects of the business (Breyfogle III et al., 2001, p.32) The
Six Sigma architects at Motorola focused on making improvements in all operations within a
process—thus producing results far more rapidly and effectively (Harry & Schroeder, 2000)
The successful implementation of the Six Sigma program in Motorola led to huge benefits
Motorola recorded a reduction in defects and manufacturing time, and also began to reap
financial rewards Within four years, the Six Sigma program had saved the company $2.2
billion (Harry & Schroeder, 2000) The crowning achievement was being recognized with
the Malcolm Baldrige National Quality Award (Breyfegle III et al., 2001; Wiklund &
Wiklund, 2002)
IBM, SONY, and Allied Signal successfully followed Motorola in implementing Six Sigma
Allied Signal began its Six Sigma activities in the early 1990s, It successfully attained savings
of US$2 billion during a five-year period (Klefsjö et al., 2001) Sooner, the impressive results
obtained by Allied Sigma induced General Electric (GE) to undertake a thorough
implementation of the Six Sigma program in 1995 (Pande et al., 2000) as a corporate
initiative to improve net profits and operating margin (Hendricks and Kelbaugh, 1998) The
1999 annual report of GE showed that the implementation produced more than US$2 billion
in benefit (Slater, 2001; Coronado & Antony, 2002, Raisinghani et al., 2005)
1
Trang 10Quality Management and Six Sigma 2
As a result, the impressive benefits of implementing Six Sigma programs in Motorola, Allied
Signal, and GE led the Six Sigma methodology being widely adopted by industries
throughout the world American Express, Ford, Honda, and Samsung have all applied the
methodology (Klefsjö et al., 2001; Sandholm & Sorqvist, 2002; Yun and Chua, 2002) The Six
Sigma has become the most prominent trend in quality management (Sandholm & Sorqvist,
2002; Yang, 2004) not only for manufacturing and service industries, but also for non-profit
organizations and government institutes
The GE-6 program and the Motorola Six Sigma program did have some differences
Whereas Six Sigma activities in Motorola had focused on product quality and the
manufacturing process, the GE-6 program extended the improvement activities to cover all
key processes related to customer satisfaction
1.2 Some key views on Six Sigma
Several prominent researchers have expressed views on Six Sigma
* Hahn et al (1999) emphasized that Six Sigma improvement is a highly disciplined
and statistically based approach for removing defects from products, processes,
and transactions, involving everyone in the corporation
* Harry & Schroeder (2000) emphasized that Six Sigma provides maximum value
to companies—in the form of increased profits and maximum value to the
consumer through high-quality products or service at the lowest possible cost
* Harry & Schroeder (2000) also concluded that Six-Sigma is a business strategy
and philosophy built around the concept that companies can gain a competitive
edge by reducing defects in their industrial and commercial processes
* Pande et al (2000) commented that Six Sigma is a comprehensive and flexible
system for achieving, sustaining, and maximizing business success It is driven by
close understanding of customers’ needs and disciplined use of facts, data, and
statistical analysis
* Pearson (2001) described Six Sigma as a program that combines the most effective
statistical and non-statistical methods to make overall business improvements
* Slater (2001) stated that the Six Sigma approach provides a very specific control
program with control techniques that ensure continuation of improved processes
* Lucas (2002) described Six Sigma as a statistical business system and a functional
methodology for disciplined quality improvement that achieves successful
outcomes
* Treichler et al (2002) concluded that Six Sigma is a highly disciplined process that
helps organizations to focus on developing and delivering near-perfect products
and services It is also, in Treichlers’ (2002) view, a change-acceleration process
that focuses on pursuing success and the rapid adoption of change
* Yang (2004) asserted that the GE-6 program and the Motorola Six Sigma
program did have some differences Whereas Six Sigma activities in Motorola
had focused on product quality and the manufacturing process, the GE-6
program extended the improvement activities to cover all key processes related to
customer satisfaction
In addition to the major features noted above, other features of the GE-6 program include (Breyfegle III et al., 2001; Pande et al., 2000; Treichler et al 2002)
* GE-6 projects are integrated with the company’s visions and strategies;
* all GE-6 projects are rigorously evaluated for financial impact;
* everyone who contributes to the success of the program receives significant rewards, especially in terms of staff promotion;
* significant financial incentives (representing 40% of all bonuses received by employees) are tied to GE-6 projects;
* a sound statistical approach to improvement is adopted;
* projects are completed rapidly (usually within 3–6 months); and
* bottom-line results are expected and delivered
1.3 Implementation of GE Six Sigma
The main features of GE-6 are discussed above, in this subsection we introduce the implementation of GE Six-Sigma:
* improvement steps;
* staff roles; and
* investment in training
1.3.1 Improvement steps
There have been many improvement models for process improvement or re-engineering Most of these have been based on the steps introduced by W Edwards Deming, which can
be characterized as ‘Plan’, ‘Do’, ‘Study’, and ‘Act’ (PDSA)(Deming, 1993) GE-6 has a five-phase improvement cycle that has become increasingly popular in Six Sigma organizations: ‘Define’, ‘Measure’, ‘Analyze’, ‘Improve’, and ‘Control’ (DMAIC) There is another cycle characterized as ‘Define’, ‘Measure’, ‘Analyze’, ‘Design’, and ‘Verify’ (DMADV) (Pande et al., 2000) Like other improvement models, the DMAIC (or DMADV) model is grounded in the original Deming PDCA cycle Usually, Six Sigma organizations use DMAIC for process improvement and DMADV for process design (and redesign) Table 1.1 describes the specific tasks in each step, and the tools and techniques used in the steps Step Specific tasks Tools and techniques employed Define Identify improvement issues
Organize project team
Set-up improvement goal
Estimate financial benefit
Customer complaint analysis
Cost of poor quality (COPQ)
Brainstorming
Run charts, control charts
Benchmarking Measure Map process and identify inputs and
outputs
Establish measurement system for inputs and outputs
Understand the existing capability of process
Process map (SIPOC)
Cause and effect matrix
Gauge R&R
Control charts
Process capability analysis
Failure models and effects analysis (FMEA)