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What is Lean Six Sigma?

What is Lean Six Sigma?

Learn the principles, tools, and benefits of this powerful methodology.

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Overview

Lean Six Sigma is a process improvement methodology designed to better meet customer needs. Its framework teaches how to eliminate problems, remove waste and inefficiency, and enhance working conditions.

By combining the tools, methods, and principles of Lean and Six Sigma, this team-oriented approach delivers proven results, maximizing efficiency and boosting profitability for businesses worldwide.

This holistic approach is built on three key elements:

  • Analytical tools and techniques: A comprehensive set of tools used to identify and solve problems.
  • Process improvements: A structured series of phases that organize problem-solving, ensuring root causes are found and solutions are implemented.
  • Mindset and culture: A data-driven, continuous improvement way of thinking that drives operational performance.

Analytical techniques are most effective when applied within a culture of continuous improvement. Similarly, effective processes without the right tools will fall short. Also, a culture focused on improvement needs both tools and a defined process to achieve its goals.

Ready to apply these principles and elevate your skills? Explore our range of online Lean Six Sigma courses, from foundational introductions to advanced Black Belt certifications:

Learn more about Lean Six Sigma

Courses

9 courses
Intro to Lean Six Sigma icon Free

Intro to Lean Six Sigma

Free

Streamline processes and reduce waste with foundational Lean Six Sigma techniques.


  • 7 lessons and certification
  • 35m of video
4.7 (783 reviews)
Go to course Intro to Lean Six Sigma
Lean Six Sigma Foundations - Yellow Belt icon

Lean Six Sigma Foundations - Yellow Belt

Understand the core principles of Lean Six Sigma and contribute to process improvements.


  • 41 lessons and certification
  • 3h 52m of video
4.6 (538 reviews)
Go to course Lean Six Sigma Foundations - Yellow Belt
Lean Six Sigma Principles - Green Belt icon

Lean Six Sigma Principles - Green Belt

Manage Lean Six Sigma projects and apply tools that reduce waste and improve quality.


  • 77 lessons and certification
  • 7h 22m of video
4.7 (249 reviews)
Go to course Lean Six Sigma Principles - Green Belt
Measurement Systems Analysis icon

Measurement Systems Analysis

Assess the consistency and accuracy of measurement tools and processes.


  • 14 lessons and certification
  • 1h 29m of video
4.6 (203 reviews)
Go to course Measurement Systems Analysis
Lean Six Sigma Advanced Principles - Black Belt icon

Lean Six Sigma Advanced Principles - Black Belt

Lead large-scale process improvements using Black Belt level Lean Six Sigma methods.


  • 87 lessons and certification
  • 8h 23m of video
4.8 (159 reviews)
Go to course Lean Six Sigma Advanced Principles - Black Belt
Statistical Process Control icon

Statistical Process Control

Use control charts and data trends to monitor and improve process quality.


  • 27 lessons and certification
  • 2h 40m of video
4.6 (154 reviews)
Go to course Statistical Process Control
Failure Mode and Effects Analysis icon

Failure Mode and Effects Analysis

Anticipate problems before they occur by identifying risks and building stronger processes.


  • 28 lessons and certification
  • 2h 54m of video
4.7 (133 reviews)
Go to course Failure Mode and Effects Analysis
Design of Experiments icon

Design of Experiments

Set up experiments that reveal how different factors affect performance and outcomes.


  • 26 lessons and certification
  • 2h 36m of video
4.7 (121 reviews)
Go to course Design of Experiments
Hypothesis Testing icon

Hypothesis Testing

Learn to make data-driven decisions by understanding and applying hypothesis testing methods.


  • 34 lessons and certification
  • 3h 25m of video
4.7 (115 reviews)
Go to course Hypothesis Testing

Ready to get certified?

Demonstrate your ability to solve complex problems and drive meaningful change — as an individual or across your organization — with a Lean Six Sigma certification. Learn about each belt level and how to get certified step by step.

Explore Lean Six Sigma certification