It can be difficult to decide which one of our courses you need, so we created this matrix to help you decide. We’re also here to help you out, simply contact us and we can talk through your situation and give you some recommendations.

Questions | ## Lean Introduction | ## Lean Fundamentals | ## White Belt | ## Yellow Belt | ## Green Belt | ## Black Belt |
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What is Six Sigma? | ||||||

What is Lean? | ||||||

What is Lean Six Sigma and how do they complement each other? | ||||||

How do you calculate efficiency to identify flow inhibitors and customer lead time?* Lean covers Process Cycle Efficiency (PCE) | ||||||

What are the 5 Lean Principles?* Lean covers Value, Value Stream, Flow, Pull and Perfection | ||||||

What are the 8 types of waste (non-value added activities) I should look for in my process to improve efficiency?* Lean covers the acronym DOWNTIME, which stands for Defects, Overproduction, Waiting, Non-utilized Talent, Transportation, Inventory, Motion and Extra Processing. It also provides ideas and suggestions on how to reduce these wastes, such as kanban, one piece flow instead of batching, error proofing, visual management and more. It also covers the 3 M’s (Muda, Muri, and Mura) | ||||||

What is a good approach for performing a structured problem solving activity?* Lean covers the Plan-Do-Check-Act (PDCA) and the 8-step problem solving models, along with A3 Thinking to consolidate your investigation into a summary page * White Belt covers the Define-Measure-Analyze-Improve-Control (DMAIC) problem solving model | ||||||

What are ways to rapidly increase the speed of improvements in a process step or across multiple departments?* Lean covers kaizen, kaizen bursts and kaizen events to get the right people together to quickly assess and improve a process | ||||||

How do I organize my physical or digital workspace in a structured way?* Lean covers 5S workplace organization, which consists of the 5 steps: Sort, Set in Order, Shine, Standardization and Sustain | ||||||

How do I get to the root cause of a problem?* Lean covers root cause analysis methods such as 5 Why’s and Fishbone (Cause and Effect) Diagrams * Green Belt covers many different statistical analysis methods that can help identify the primary causes of a major problem * Black Belt goes more in-depth into the statistical analysis tools, to help identify key drivers and contributors to more complex problems | ||||||

How do I balance out the workload across different process steps and departments in order to make my processes flow more smoothly?* Lean covers process metrics like Takt time, Pitch and Process Cycle Efficiency (PCE) that help identify bottlenecks and opportunities to streamline a process | ||||||

How do I reduce the time to set up or changeover my process from one task, product or service to another?* Lean covers Single Minute Exchange of Die (SMED), also called Rapid Changeover or Setup Reduction, which helps you complete that part of the process more quickly. This enables smaller batch sizes, which will also increase the flow from one process to another | ||||||

How do I reduce inventory levels in my process and prevent working on items too early (overproduction)?* Lean covers a few methods, such as Kanban and 2-bin pull systems, one piece flow instead of batching, and balancing the work across process steps that can minimize the amount of inventory | ||||||

How do I create a process map from my customer’s perspective for a product or service?* Lean covers Value Stream Mapping (VSM), which has 4 elements: Material Flow, Information Flow, Data Boxes and Timeline (lead time and cycle time per major step). It also covers other process maps like Swimlane Maps and Spaghetti Diagrams | ||||||

How do I prevent errors and mistakes from happening in my process?* Lean covers Error/Mistake Proofing methods to help you think of ways to take human error out of your process, or detect problems that have happened as quickly as possible | ||||||

How do I clarify the problem statement, primary metric, goal and business case prior to starting a project?* Lean covers A3 and the PDCA cycle * White Belt covers the Project Charter template | ||||||

How do I develop the ideal and future states from the current state? | ||||||

What are some examples of Lean projects? | ||||||

What are some examples of Six Sigma projects? | ||||||

How do I identify the input variables and output requirements for each process step I’m evaluating?* Yellow Belt covers the Cause and Effects (C&E) Matrix to prioritize and rank the most likely inputs | ||||||

How do I calculate central tendency and variation statistics for my process data?* Yellow Belt covers Mean (average), Median, Standard deviation and Range | ||||||

How do I identify potential failures or errors in my current or new process, and ensure that I have risk mitigation in place?* Yellow Belt covers Failure Modes and Effects Analysis (FMEA) | ||||||

How do I estimate the confidence of a mean or standard deviation from my process data?* Black Belt covers t-distributions for sample sizes under 30, and 95% confidence intervals | ||||||

What are some good charts and graphs to visually display and interpret my process data?* Green Belt covers Dotplots, Histograms, Anderson-Darling normality test, Normal Probability Plot, Time Series Plot, Boxplot, Pareto charts, Scatterplot, and Minitab’s Graphical Summary * Black Belt works through exercises in Minitab to create these charts | ||||||

How can I determine if my attribute (count or pass/fail) data or my variable/measurement data can be gathered consistently by multiple people or devices?* Green Belt covers Variable Measurement Systems Analysis (MSA), also called Gage Repeatability and Reproducibility (R&R) * Black Belt covers Attribute Measurement Systems Analysis (MSA), also called Attribute Gage Repeatability and Reproducibility (R&R) | ||||||

What are some methods for preparing and manage stakeholders in my process to embrace change?* Black Belt covers Change Management, which covers what makes a good leader, managing change effectively, why people resist change, and dealing with resistance | ||||||

What are some good statistical software options for charting and analyzing my process data?* Black Belt covers either SigmaXL or Minitab Statistical Software. Let us help you choose the best software for you | ||||||

How do I monitor performance of a process over time to identify trends, shifts and unusual patterns?* Green Belt covers Statistical Process Control (SPC) for variable and measurement data and Control Plans * Black Belt covers Statistical Process Control (SPC) for attribute (count and pass/fail) data and the Central Limit Theorem | ||||||

How do I determine if there is a statistical difference between two or more groups or categories of data?* Green Belt covers Hypothesis Testing methods, such as Type I and II error (Alpha and Beta risks), T-test, Analysis of Variance (ANOVA), Chi-Square, and Simple Linear Regression | ||||||

How do I determine how many sample sizes I need to gather to be able to see a statistical difference between my groups or changes in my process?* Black Belt covers Sample Size Calculations using decision error values (alpha, beta, delta), along with methods for randomly sampling data from a process | ||||||

How do I analyze and quantify the relationship between my output results and my input variables?* Green Belt covers Correlation Analysis, Simple Linear Regression and Analysis of Variance (ANOVA) * Black Belt covers Multiple Regression (more than one input variable) and Balanced ANOVA. It also covers creating a matrix plot, scatterplot, coefficients of determination, R-squared Adjusted, Test for Overall Significance, Collinearity, Variance Inflation Factor (VIF), Best Subsets Regression, Coding Categorial Predictors, and Stepwise Regression | ||||||

How do I handle nonnormal distributions?* Green Belt covers Statistical Process Control (Xbar and R charts) and Normality Tests to assess your data against a Normal distribution * Black Belt covers Central Limit Theorem and Data Transformation options to fit your data to another distribution | ||||||

How do I determine how well my current process metric or measurements can meet my goal, target, or specification limits?* Green Belt covers Process Capability Analysis (Cp, Cpk, Pp, Ppk indices for Normal distributions) * Black Belt covers Advanced Capability and Data Transformation for Normal and nonnormal distributions | ||||||

How do I setup a controlled experiment that can determine which input factors have a cause and effect relationship with one or more output factors?* Green Belt is an introduction to Design of Experiments (DOE) using Full Factorials * Black Belt uses SigmaXL or Minitab software to teach Full, Fractional and General Factorial Designs, Optimization Designs, Multiple Response Optimization, Evolutionary Operations (EVOP) | ||||||

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## What people say about OpEx Learning?

I thoroughly enjoyed the White Belt training and the website was easy to navigate. I would definitely recommend it to anyone interested in Lean Six Sigma. Thank you OpEx Learning.

##### Naledi Selepi

The program is well designed in touches on all the basics of 6-Sigma. This is an easy to follow course that, I believe, would help companies if presented to employees in the operational level.

##### Kendry Bautista M.

The Lean Six Sigma White Belt course was very accessible for me as a school administrator. I will definitely use the resources for project management and strategic planning.