Nutek, Inc.     Quality Engineering Seminar, Software, and Consulting ( Since 1987)       You are at Robust Design site: 130617
(Owned & operated by RKRoy Associate)

Robust Designs

Taguchi DOE


Project  Mngmt. &
Quality Trainings

Company Profile &
Clients List

Home & Contact


Engineers, Scientists & Quality Champions, learn how to build robustness into your products. Consider our Seminars for individual or group training.
The Taguchi Design of Experiments (DOE) for
Robust Product and Process Designs
This skill-building seminar with application workshop teaches you how to guide your project team with the proven skills to build quality into your products and tackle the problems on production floors.

 "A great process improvement tool for your production optimization management team! ( Read Testimonials) 





Scroll down to review content and description of our 2, 3 or 4 - days traini/workshop at your facility.

Write us ( ) if you wish to schedule a training/workshop for your engineering & scientific professionals.

Click here to view and register in  seminars sponsored by the American Society of Mechanical Engineers (ASME, Instructor: DR. R. Roy).


Which manufacturing processes benefit from this skill?

The following processes have potential for high return on investment from this technique when used for OPTIMIZING DESIGN or used for SOLVING PRODUCTION PROBLEMS.

  • Brazing, Soldering, Casting, Deburring, Die Casting, Extrusion, Forging, & Grinding

  • Heat Treating

  • Plastic Blow Molding, Injection Molding & Thermoforming

  • Powder Metallurgy

  • Sheet Metal Stamping Dies & Processes

  • Turning and Lathe Machining

  • Welding

Links to Related Sites & options    

In memory of Dr. Genichi Taguchi (January 1, 1924 - June 2, 2012)

I was deeply saddened to learn that Dr. Genichi Taguchi passed away in his native Japan on Sunday, June 2, 2012. Dr. Taguchi made a remarkable and lasting impact on the Quality revolution of automotive and manufacturing industries, which was prompted by the oil embargo of the late 1970's and continues today.
Dr. Taguchi elevated the utility of the Design of Experiment (DOE) statistical technique which was originally introduced by the UK's Sir R. A Fisher in the 1920's. Taguchi's constant effort to make the DOE technique more effective by standardizing experiment designs and offering a method for handling influence of noise factors toward robust designs was readily adopted by quality professionals and industrial experimenters worldwide.
With his passing, the world lost another great innovator and contributor to quality.

- Ranjit Roy, Author, Trainer and Consultant, June 11, 2012

 Who should attend     Application areas     Course description     Workshop     Topics of discussions     Instructor   Cost   Registration requirements   Learn about how to host our seminar outside USA ] 

Course Overview
      Robustness is an essential characteristic for dependable performance. Robust products and processes perform reliably with minimum variation due to uncontrollable factors. Naturally, to
assure consistent performance, the designs must be robust.
     Dollar for dollar, the return on investment is the most when design improvement efforts are directed toward the development activities. One of the effective ways to reduce variation in performance that potentially results in rework and rejects downstream, is to use the standardized version the Design of Experiment (DOE) technique proposed by Dr. Genechi Taguchi. This approach allows scientific professional to easily learn and apply the DOE technique in their own design and development. Today, robust design technique is considered a necessary effort for building quality into products and processes of all kinds.
     In this seminar Dr. Roy will take you through the basic steps in the Taguchi approach for robust product and process designs.  Participants are required to solve numerous hands-on exercise to learn how to apply the technique immediately in their own projects. The course discussions cover topics such as PLANNING, EXPERIMENT DESIGN, ROBUST DESIGN strategy and LOSS FUNCTION in details. Discussions of theories and statistical computations are kept to a minimum.
    By completing this course, the attendees are able to apply the robust design technique in their own projects to (1) Optimizing product/process designs, and (2) Solve production problems.

These sessions are intended to prepare the attendees for immediate applications. Attend if you wish to learn how to apply the Taguchi technique confidently, become a specialist within your organization, and teach other the effective steps in the application. Attend alone or as a group if you are a:

Product/Process Design Engineers and Managers - Apply the skill that can produce a quantum improvement in performance of your design,
R&D Scientists - Find the recipe/formulation that produces the most desirable and robust performance.
Quality Champions, Black Belts, and Project Managers - Learn and apply the technique that makes you more effective in solving production and manufacturing problems.
Engineering Consultants - Secure the application knowledge you need to facilitate design optimization and problem solving teams.

Engineering & Manufacturing Executives - Find out how the application methodologies perfected by experienced practitioners add more value to the technique and how you can implement it in your activities.

Educators and Trainers - Discover how to make your teaching more effective with balanced emphasis on theory, hands-on practice, and assistance of an user-friendly software.

Marketing Executives - Increase response from advertisement and optimize web/landing pages.

Offered Public Seminars during 1987 - 2012 in Detroit area

Why should you consider our seminar?
Attendees to this session learn hands-on, how to apply the Taguchi experimental technique. 80% of class discussions deal with applications. Attendees learn how to apply the technique immediately to :



There is no minimum educational background requirement for this seminar. However, two or more years of college education in any field of science or engineering is helpful. This course is taught at a level easily understood by the practicing engineers, scientists and managers without a background in statistics.

 The class discussions are intended help you build application expertise. Our goal is to make you ready for immediate performance improvement and variation reduction applications. You will know how to plan, and lay out experiments. You would also be able to interpret and analyze results.

Engineering managers & executives, the products you manufacture are much improved when you build quality into the designs. Your project applications await leadership from a few skillful specialists. Register the potential mentors within your organization to be trained by us. Our session will make them ready for applying the technique right away. Attendees to our session also learn how to use the software that relieves them from all experimental design and analysis tasks. Worried that in absence of immediate applications, you might loose the learned skill? The reference textbooks available would help you to quickly brush up the methods in times of needs, long after the seminar.

When quality issues are addressed in the design phases of products and processes, the return on investment is much greater. Desirably, all designs should be optimized before they are released for production. For products already in production, a vast majority suffers from problems related to the lack of consistency of performance. Variation in performance, which causes higher rejects, reworks, and warranty, can be reduced by this experimental technique.

This 4-day seminar will prepare you for immediate application of the robust design technique to your own projects. Basic steps of experiment designs using the Taguchi orthogonal arrays will be discussed in detail. You will understand how improvement in consistency is measured in statistical terms and how experiments can be designed to improve it. The Taguchi Robust Design strategy, which deals with treatment of the uncontrollable factors and how to make the performance insensitive to the influence of the uncontrollable factors by controlling those factors that can be controlled, will be covered in details. Practical application steps, including brainstorming, team approach, and consensus decisions, are demonstrated through example project applications. Discussions of theory and mathematical treatments are kept to a minimum. Concepts covered in class lectures are practiced and tested using numerous class exercises. A large number of review questions in the reference handout provides opportunities to test what is learned in the class. The participants are encouraged to attend as a team and bring their own projects to the class.

Workshop: Attendees learn hands-on, how to accomplish design and analysis tasks using Qualitek-4 software (Free working DEMO) . All attendees are requested to bring their own laptop computer for the last two days of the class.


Discussion Topics

Day 1

  • Introduction  - Robust design

  • Overview of the Taguchi concepts of quality engineering 

  • New philosophy and Definition of    - Quality Loss to the society from poor quality 

  • Standardized technique  - Measuring cost of quality by Loss Function

  • Review basic concepts in experimental design  

  • Types of factors and levels  Common experiment designs

  • Orthogonal array vs. one-factor-at-a-time experiments   

  • Project objective and Overall Evaluation Criteria

  • Need for combining multiple evaluation criteria into a single index 

Day 2

Day 3

  • Experiments with mixed level factors   

  • Upgrading 2-level columns into a 4-level array  

  • Downgrading (dummy treatment) columns   

  • 15 different experiments using an L-8 array

  • Combination Design (special design tool)

  • Robust Design Strategy  -New attitude toward uncontrollable factors  

  • Two-Step optimization method

  • Outer array for robust design

  • An overview of Systems with Dynamic Response 

  • Analysis of Results

  • - Two Step Optimization strategy
  • TEAM - the new disciplines in the workplace

  • Order of discussions in the planning session

  • Participants and facilitation of planning

  • Computation of cost/ LOSS FUNCTION  

  • Reference and Application assistance 

  • Project application guidelines 

  • Design and analysis using computer software

Day 4



"As a six sigma practitioner, I am highly satisfied with this training. It provided me with comprehensive Taguchi techniques and practical robust design strategies. It suits my job very well in robust process design and continuous improvement.  My skills of using Taguchi approach were enhanced to a higher level where I can comfortably handle complex design and confidently dispel some misunderstandings of using this approach" - George Li, Manager of Continuous Improvement, Research in Motion Ltd., Waterloo, Ont. Canada.

"This seminar will help us apply the technique  to increase response from advertisement. I liked the small size of the class which helped me keep focus on the subject and engage in interaction with the instructor."  - Randy Ristow, Director of Marketing, Allstate Insurance, Northbrook, IL.

"Great program! Instructor was very thorough and used down-to-earth examples to explain critical concepts."  - Jim Snow, Calsonic Kansei North America, Shelbyville, TN.


"This training is exactly what I was looking for. It showed me the structured approach to solve production problems and optimize manufacturing processes" - Dereck Cyrus, Specialist, Continuous Improvement, Research in Motion Ltd., Waterloo, Ont. Canada.

"As a Six Sigma Black Belt and consultant of quality topics, I was impressed by the appropriate emphasis on theory and application. Showing how to apply were addressed in details." - Naveen Iyengar, Six Sigma Alchemy (P) Ltd., Mumbai, India.


"Iím very glad I participated in this class. Iím surprised why my company has not been using this technique"  - Melinda Dennis, Six Sigma Black Belt, Recticel Interiors of North America, Clarkston, MI.

"Dr. Roy has a good way of explaining difficult materials clearly with simple examples and analogies."  - Stephen Christanto, Sara Lee, Saint Luis, MO.


"This would be a great discipline to structure our experimental studies related to vinyl siding fabrication line."  - Tom Gates, Certainteed Corp. Jackson, MI.


"My application is in product testing and validations. This session gave me the ability to confidently dispel some of the misunderstandings and most economically layout my product performance & durability tests." - John Wajenski, Sr. engineer, Lockheed Martin, Owego, NY.

"DOE is expected to be an excellent technique for controlling variables in wood drying process. This seminar covered the background necessary for proceeding with the applications." - Dr. David Barrett, Professor of Wood Science, The University of British Columbia, Vancouver, Canada.

"By completing this seminar, I feel self-confident to use DOE in real environment such as manufacturing, design, and development." - Tadej Sircelj, Grosuplje, Slovenia


"This has been an excellent experience for me. Use of the software to take care of all design situations and calculations of results, is most helpful" - Quality Manager, Pretium Packaging LLC. Muscatine, IA..


"Instructor is very knowledgeable in the subject and was able to relate to practical uses as well as theoretical bases for the analysis" - Vince Chacon, NASA Dryden Flight Research, Edward, CA.

"I have an immediate need to apply the technique to my projects, and this seminar helped me learn how to apply right it away." - Amir Jiwani, Application Engineer, Industrial Tools Inc., Oxnard, CA.


"Dr. Roy is an excellent instructor and can explain difficult concepts in an understandable manner. I feel I learned a great deal." - Rick Bauer, Cardinal FG, Menomonie, WI.


"The program is very informative and the instructor provided good examples to help us understand ideas by explaining it different ways." - Scott Oldani, Belleville Shoe Manufacturing Co. Belleville, IL.

"The structured discussions in experiment planning will be most helpful to my activities. Also the ability to translate improvement into dollars using the Loss Function is something very attractive." - Barbara Schiller, Eagle Ottawa, Rochester Hills, MI.

"The instructor is very knowledgeable and makes use of simpler examples to clarify finer concepts of the technique. I hope to use the technique for trouble shooting and problem investigation. " - Solvey Advance Polymers, Apharetta, GA.


"The instructor maintained an excellent and understandable pace of instruction throughout the course."  - Quality Engineer, Valeo Climate Control, Auburn Hills, MI..

  Scroll down to read more testimonials about our seminars for industrial clients (Toward the bottom of the page)


  Workshop and Class Exercises (Participants work in teams and learn from each other. )  








Ready-L8:  Look for this app for iPad in the iTune App Store. This app allows you to carry out experiments to study 4, 5 or 6 two-level factors. Once the factors and their levels are described, Ready-L8 lays out your experiments using the Taguchi L-8 orthogonal array. Following completion of the experiments, with results entered, it instantly analyzes the data to produces the optimum condition and  the factor influences.  [Download in your iPad or iPad Mini. Search using "Ready Taguchi" in the Apple App Store.]
Course Instructor: (Testimonial from ASQ-LA on Training Skills)
This seminar is led by Ranjit K. Roy, Ph.D., P.E., PMP, Dr. Roy specializes in the Taguchi approach to quality improvement. He is also the author of three leading textbooks on the subject and of Qualitek-4 software ( ) used in the seminar. Dr. Roy has achieved international recognition as a consultant and trainer for his down-to-earth teaching style. He began his career as senior design engineer with Burroughs Corporation following completion of graduate studies in engineering at the University of Missouri-Rolla in 1972. He then worked for General Motors Corp. (1976-1987) assuming various engineering responsibilities with his last position as that of reliability manager. Dr. Roy is a fellow of the American Society of Quality.

Depends on the number of participants.  

As an attendee you will receive:

  • Seminar handout (over 250 pages, review sample pages ). PDF of the handout materials provided at no cost to the host for reproduction.

  • OPTIONAL: Software, Qualitek-4 - Working DEMO software used for the class workshops, will be provided by the instructor. TEXTBOOKS - Either Design of Experiments Using the Taguchi Approach: 16 Steps to Product and Process Improvement by Ranjit K. Roy  or A Primer on the Taguchi Method (Second edition) - Ranjit K. Roy            


  1. One scientific calculator

  2. One or more of your own design optimization projects or problem solving ideas.

(1) Send email to request price quotation. Include number of participants and dates of sessions (provide two dates)

(2) Upon receipt of price quotation, Issue a company purchase order.

Testimonials from our

onsite seminar sponsors

[Boston Scientific]
To Whom It May Concern

Faced with the complex nature of our manufacturing process data analysis, we recently retained Nutek, Inc. to facilitate a few of our process problem studies. Based on methods prescribed and guided by the principal consultant, Dr. Ranjit Roy, I was able to identify process parameters that produced significant improvement in performance. More importantly, the unique structured approach to work with the project team allowed me  to methodically investigate and understand our process performance to a greater extent. Overall, my experience with Nutek, Inc. in study of our production problem has been highly satisfactory and cost effective.
In addition to application consulting service, we trained many of our engineering and quality professionals using the seminar by Nutek on Product and Process Design Improvement. Based on my experience,  the Nutek 4-day seminar with application workshop has done an effective/outstanding job of preparing me for immediate applications to projects. Using the methodologies taught in the class, I have been able to apply the skills and carry out many successful experiments.
Atul K. Garg, Ph.D.
Manager, Materials Engineering, Boston Scientific Corporation, 45 Barbour Pond Drive, Wayne, NJ 07470, 050308

[TI Group Automotive Systems LLC]
"Dr. Roy's unique approach breaks down many of the inherent barriers to understanding design of experiments and allows the participants to focus on the really important aspects. His structured approach to planning of the experiment leaves the trainee with a feeling of confidence that carries over to the immediate applications of the theory to the real life applications. As an added bonus, the Nutek's Qualitek-4 software for the Taguchi experiments provides a simple and effective approach to analysis of the experiment. This frees up the team to concentrate on solving the problem. All in all it's a great approach."

Tom Dold,
TI Automotive North America, Warren, MI.

[Ford Motor Company. Dearborn, Michigan]
Dear Mr. Roy, Thank you for conducting the workshop sessions on applications of Parameter Design at our Quality Conference in Cleveland this year. The feedback has all been positive, the attendees found your session interesting and informative with good potential applications for them in future.

A. J. Tombrillo
UAW Co-Chairman, National Quality Committee, Casting Operations, Ford Motor Company,  930415


[Ford Motor Company. Dearborn, Michigan]
To Whom It May Concern

Ford Powertrain Operations has been doing business with Dr. Ranjit Roy and Nutek, Inc. since August of 1989. We were involved in purchasing the Qualitek-4 software site license for all Ford employees worldwide to automate our design of experiments. We have sponsored more than 20 onsite four day seminar/workshops training to cover 400 employees.

Dr. Roy's teaching of the Taguchi approach and his focus on the application method has provided a practical approach to meet our needs. Our use of the Qualitek-4 software automates experiment layout and perform complex calculations to speed our experiment designs with effective solutions. Dr. Roy's consulting services also been helpful to solve several challenging experiments. We look forward to continuing our relationship with Dr. Roy to assist Powertrain Operations in our continuous improvement efforts.

Larry Smith
Manager Strategy & Planning Department, Quality Office, Powertrain Operations, Ford Motor Company. Dearborn, Michigan, 940620


[Ford Motor Company. Dearborn, Michigan]
This is to verify that Dr. Ranjit K. Roy of Nutek, Inc. has completed the standard certification requirements for Ford Motor Company's Fairlane Training and Development Center (FTDC) in Dearborn, Michigan for the courses listed below. As a certified instructor, he has taught at FTDC facility in Dearborn, Michigan, USA and elsewhere at Ford manufacturing facilities since 1997.

List of courses that Dr. Roy has taught at FTDC:

  1. ISO/Q 9000 Overview
  2. Benchmarking Overview
  3. MS7S Quality System Training
  4. Threaded Fasteners (Taught in Mexico, Canada &US)
  5. Parameter Design (Taguchi Robust Designs)

Under the FTDC standard certification used in all Quality/Relibility/SixSigma/Ford Technical Education Program courses, all qualified instructors are required to go through .....

Roderick A. Munro, Ph.D.
ASQ-Fellow, CQRE,CQA,CQMgr, Manager of Training, FTDC, Ford Motor Company, Dearborn, MI, 010302

[John Deere Industrial Equipment Division]
Dear Dr. Roy,

I would like to express our satisfaction for the excellent Design of Experiment seminar which you provided at the John Deere Dubuque Works this spring. At the conclusion of the seminar we received very good feedback on the level of instruction and in particular your enthusiasm and breadth of knowledge on the subject matter.

While positive feedback at the conclusion is important, the true test of a good class is whether or not the materials presented will change the way we do our business. I'm very happy to report that several engineers have incorporated the Design of Experiment approach into their engineering toolbox and have made decisions based upon its output. Because of our successful usage of the Taguchi-based design of experiment methodology, I like to extend to you an invitation for another seminar in Dubuque this spring.

Thank you for your service and look forward to seeing you again next year.

Brian J. Rauch
Manager, Advanced Research and Development, John Deere Industrial Equipment Division, Dubuque, Iowa. 961016


[Ford Motor Company. Sharonville, OH]

Nutek has conducted several Design of Experiments - Taguchi Methods training sessions at Ford Sharonville Transmission Plant, the most recent in 1/93. We have received positive feedback from our employees and we are in hopes of retaining Nutek services for another class in 1994. The subject matter was taught in a clear and concise manner and our employees felt comfortable in asking you questions throughout the 32 hours of the class.

Our feedback indicates that the software portion of the class enhanced their ability to properly construct and execute a Taguchi DOE for optimum results. Our employees routinely use the software now when doing a DOE.

Personally, I want to thank the instructor to rearrange the schedule to accommodate our needs in conducting the last two classes. The training class was in demand and the attendees were able to accomplish their project goals within the planned time frame.

Jean D. Holcomb
Training ADministrator, Sharonville Plant, Powertrain Operations, Ford Motor Company,  940216.


[Manchester Plastics, Canada]

Dear Ranjit,

I would like to take this opportunity to thank you for the excellent instruction provided during the DOE course last month.

I have talked to most of the participants in person and read all the course evaluations and the response was very positive. Everyone felt that the course gave them a complete understanding of the Taguchi DOE methodology and most could immediately see an application in their day-to-day work.

I personally felt that you approached the subject (Taguchi DOE) in a very systematic way and therefore was easily understood. You provided excellent examples and exercises that allowed for a complete understanding of the subject. I would recommend this course to anyone who is missing this tool from their tool box.

Kevin Webster 
Quality Manger, Manchester Plastics, Gananoque, Ontario, Canada. 960717.


[Tri-State Quality Manufacturing Conference]

Dear Dr. Roy,

Congratulation on a most excellent presentation at this year's 49th Annual All-Day Quality Conference sponsored by American Society for Quality, Section 0905.

The post conference survey indicated that quality improvement was of far more interest than quality planning, or assurance. Whether due to this interest or other reasons, your presentation was voted the most valued presentation of the ten offered.

Many thanks for helping make our conference a great success.

Stepjhen Rowe, Ph.D
1998 Conference Chairman, Tri-State Quality Manufacturing Network, 981120


hit counter
free web counter: 160331-001456