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Broad Topics: The Algorithm of Lean Six Sigma – Business and Technical Aspects
- Lean DMADV (Define – Measure – Analyze – Design – Verify)
- Design of Experiments – Classical Methods
- Robust Engineering Design – Taguchi Techniques
- Tutorials, Case Study, Classroom Experiments, Software Simulations
- Templates Creation and Knowledge Management to Increase Company’s Intellectual Capital
- Integrating the methodology into easy-to-use MS Excel software.
This program starts with a short introductory warm-up level, and quickly moves through the various features and functionality of a basic experimental design. After two days, participants will be proficient in using Microsoft Statistical Library Function to quantify within, between and total variation, analyze significant variation contribution and much more. Participants will be able to run the DOE’s and Taguchi’s best practices experimental simulations on any Excel spreadsheet they can create, as well as, be able to understand and present the results to others.
Highlights
- Each concept covered will be supported with 2 to 4 tutorial assignments. Participants will have a speedy understanding on the advantages and disadvantages of various design techniques, be able to plan and design experiments as well as analyze data, and learn how to recover from experiments that do not confirm.
- Participants will have ample time to discuss on how DOE might be applied to their own work areas. Participants will also be tested (software design) on each new concept taught.
- Using Microsoft Excel software to perform analysis to show participants how DOE can be applied for quality improvement.
Bonus Features (no need to buy expensive software: immediate cost saving of US$1.2k per participant)
- Participants will be taught to create their own Advanced Lean Six Sigma Problem Solving Tools - DOE and Taguchi Methods in MS Excel spreadsheet software (this software will become their company Intellectual Property)
- Case Studies will be provided
Training Methodology
This workshop is designed with the “I SEE, I HEAR, I THINK, I DO, I INTERNALIZE” learning philosophy. This 5-day workshop syllabus is structured for significant learning and maximum retention. The training program is a combination of classroom presentations, interactive participation, and thinking skill development exercises. This is combined with in-door experiential learning activities related to the application of the DOE concepts learned.
Throughout the workshop, we weave in the following concepts to enhance participants' understanding in acquiring a pragmatic approach to implementing DOE within their organisation.
a) The Concept of Process Entitlement
b) The Theory of Constraints
c) Lowest Total Cost, Shortest Cycle Time and Safest & Profitable Mode of Operation
Classroom Experiment
A simple experiment will be conducted to illustrate the technical aspect of DOE concepts, set the target and consistently achieve the target with no variation. This classroom experiment seeks to engage the participants to answer the following questions.
1) Which factor(s) has the greatest impact on the outcome?
2) Which aspect of the variation is not significant?
Classroom Project
Participants will form group to carry out a self-defined experiment. Participants will achieve a working knowledge of DOE, and will be encouraged to become DOE practitioners. This experiment emphasizes the DOE process: how to setup the experiment, how to randomize the test, how to collect the data, how to analyze the data, what the results mean and what can be inferred about the whole experiment from the evidence gathered. Participants will be required to share their lessons learned.
Morning Session (Day 1) |
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- Why are 1, 2, 3, 4 and 5 Sigma inferior to 6 Sigma?
- What is Sigma?
- Is 10 Sigma better quality than 6 Sigma?
- Why stop at 6 Sigma?
- The 4 Basic Measures of Variability
- How is Sigma related to quality?
- The Spirit of Six Sigma & Taguchi Loss Function
- How many Sigma can you place within a given tolerance?
- If you can only place 3 Sigma, what does it mean?
- If you can only place 6 Sigma, what does it mean?
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Afternoon Session |
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- Defects per million concept
- Why minimize the variation first before centering the mean?
- SPC language of Six Sigma
- Business Language of Six Sigma
- Layman language of Six Sigma
- Definition of Cp and Cpk
- Tolerance and Quality
- Six Sigma Quality
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Tutorial:
a) How to calculate Cp and Cpk?
b) How to calculate Sigma?
Projects Identification (optional) |
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Summary of Day 1 |
Morning Session (Day 2) |
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Overview of Classical Design of Experiments and Taguchi Methods
- DMADV in detail
- Design of Experiments Roadmap - 15 Step Process
- Financial or Technical Reasons for DOE
- The nature of business
- Business Gravitational Forces
- The Six Sigma Quality: Value Added Cost without any Waste
- The three important questions every staff needs to ask
- Tolerance and Yield
- The Concept of Process Entitlement
- What can Design Of Experiments do for you?
- What is Accuracy? What is Precision?
- Causes of Variation: Special and Common causes
- Process Average and Variation
- The biggest headache is when the common causes can no longer be tolerated
- Sources of Variability in Product Quality
- Potential Areas for Variability Reduction
- Objectives of DOE
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Afternoon Session |
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- Individual Participation: On Target No Variation (scenario 1, 2, 3 and 4)
- Higher Quality Implies Variance Reduction Around the Target
- Explore the factors that deliver a product that is on target with low variation and low cost
- DOE Must Be Financially Viable
- The Rich Dad Poor Dad Perspectives of Problem Solving and Opportunity Seeking
- When not to apply DMAIC?
- Theory of Constraints and the Weakest Link
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Tutorial: 3-5 and 3-12 ( Completely Randomized Design)
To be in business, you have to answer two fundamental questions with a certain degree of confidence. Can you?
Group Participation: Which is normal? The danger of ‘ Normal Mentality’.
Projects Identification (optional) |
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Summary of Day 2 |
Morning Session (Day 3) |
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Risk Assessment {Type I error ( a ) vs Type II error ( b )}
- The prerequisite to conduct a Design of Experiment
- One Single Data can cause you to make a wrong decision
Illustration: 'Now you REJECT and Now you ACCEPT'
- Assignable Cause will distort your judgment
- Hypothesis Testing and Alternative Hypothesis
- The Three Assumptions of ANOVA
- Normal Distribution
- The Concept of Total Variation, The Concept of Within Variation, The Concept of Between Variation
- Using Bar Chart to reveal the amount of variation in the data set
- ANOVA Table: Sum of Squares, Degree of Freedom, Mean Squares and F-Ratio
- Sum of Squares and its Additivity Property
- Differences between Vertical and Horizontal Blocking
- Why Analysis of Variance (ANOVA)?
- The Power of ANOVA (decompose or partition of total variation into its respective factors/interactions/error)
- The relationship of between variation and assignable/special causes
- The relationship of within variation and common/random causes
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Afternoon Session |
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- F distribution, F-Ratio and F-Table
- Why use Microsoft Excel for Design of Experiments Calculation?
- The Power of Microsoft Excel Library Function
- Completely Randomized Design is The Base Design (the beginning)
- The scalable ANONA Table
- The similarity in ANOVA Table removes the fear in DOE
- Best Practices in Design of Experiments
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Tutorial A: 5-1, 5-2, 5-7 ( Randomized Complete Block Design)
Tutorial B: 5-14 ( Latin Square Design) ; 6-1, 6-4, 6-6, 6-7 (Two-Factor Factorial Design)
Identification of Potential Root Causes of Variation and Lowest Total Cost Option
Projects Identification (optional) & Projects Review |
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Summary of Day 3 |
Morning Session (Day 4) |
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- What needs to improve? What went wrong?
- Role of DOE in Process Improvement
- Conducting Good Experiment
1. Choice of factors, including their range;
- Knowledge of what the results are applicable to; and
- Choice of experimental materials, procedure, and equipment.
- Choosing the Number of Factors
- Choosing the Levels for Each Factor
- What is your confidence level in factors selection and levels setting?
- The three basic principles of Design of Experiments are:
- Replication,
- Randomization and,
- Blocking
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Afternoon Session |
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- DOE Terminology
- Which model is suitable to your process: Fixed Effects Model or Random Effects Model?
- Planning a DOE
- How to select the amount of replication?
- The importance of randomizing the order of the tests
- Trial Number; Treatment Number; Setting Number
- Treatment Combination; Setting Condition
- The meaning of Complete Randomization, Simple Repetitions, and Blocking
- How to randomize?
- Why without confirmation run, DOE is only a prediction tool?
- Business Considerations: Profitability and Customer Repurchase Intention
- Do Your Customers Count Sigmas?
- Examples of data collection forms for the various classical DOEs and Taguchi Designs
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Tutorial A: 7-1, 7-5, 7-15 ( 2 K Factorial Design)
Tutorial A: 2 IV 4-1, 2 IV 6-2, 2 IV 7-3 ( 2-Level Fractional Factorial Design)
In-door experiential learning activities related to the application of the DOE concepts learned.
Projects Review (optional) |
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Summary of Day 4 |
Morning Session (Day 5) |
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- Important features of 2 K Factorial Design
- 2 K Factorial Design: first-order effects, two-factor interactions, three-factor interactions, four-factor interactions, five-factor interactions
- Differences between Full Factorial Experiment, 1/2 Fractional Factorial Experiment, 1/4 Fractional Factorial Experiment, 1/8 Fractional Factorial Experiment
- Fractional Factorial Design Resolution
- Resolution III design, Resolution IV design, Resolution V design: Resolution IV classification is of main interest
- The Sparsity of Effects Principle
- What is Aliases or Confounding?
Illustration: Forcing a 2 4 Factorial Design into a 2 3 Factorial Design
- Why you need to predetermine the two-factor interactions?
- How many two-factor interactions can you study in Fractional Factorial Design?
- Revisit the Concept of Blocking
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Afternoon Session |
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- What is the Taguchi Method?
- What is the Quality Loss Function?
- What is Robust Design?
- What is the Signal-to-Noise Ratio (S/N)?
- What are Orthogonal Arrays?
- What are the three goals in Taguchi parameter design?
- The main advantages of Taguchi Methods
- What are the Common Orthogonal Arrays?
- The 3 distinct Signal to Noise Ratios: Nominal-is-Best; Smaller-is-Better; Larger-is-Better
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Tutorial: L 4(2 3), L 8(2 7), L 9(3 4) { Taguchi Method (L 4, L 8, L 9)}
Examples of Aliases / Confounding
Case Study; Food for Thought – 1, 2, 3
Projects Review (optional) |
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| Summary of Day 5 |
Company Projects (optional)
Knowing what they now know, participants are required to relate to their functional areas of processes, then apply their learning to a problem or opportunity of their own choosing, and finally achieve breakthrough results for the company. In between classes and the final presentations, participants will discuss their projects with the consultant.
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