Lean Six Sigma Green Belt

ix Sigma Green Belts are improvement professionals that spend a portion of their time on process improvement teams, with the other portion of their time being dedicated to their full-time job. Green Belts often work under the direction of a Black Belt to lead key activities within the DMAIC process. Some activities could be conducting surveys of focus groups to capture and assimilate voice of the customer. Or facilitate a group of operators to draft a current state process map or swimlane. More advanced activities include design the data collection plan and analyze data to determine root cause.

Thomas West, MBB
LSS Green Belt Mobile Cover


Thomas West, MBB
I am passionate about helping organizations get better, by helping people be their best. My role as an ASQ Lean Six Sigma Master Black Belt is to coach and mentor others to become creative problem-solvers and passionate change agents. This can only be achieved by giving others the tools, skills, and mindset they need to make and lead change.

advanced level

Estimated time

60 - 80 hours

6 hours over 8 week period



Enrolled in this course

Course Description

Dr. W. Edwards Deming famously said that “Every [process] is perfectly designed to get the results it gets.” And “If you can’t describe what you are doing as a process, you don’t know what you’re doing.”


Across these two quotes it is pretty clear to see that processes are important. Whether you work in an industry such as healthcare, warehousing and distribution, manufacturing, or really anywhere for that matter, processes define your work and determine your outcomes. A Lean Six Sigma Green Belt certification equips learners with a proven methodology for identifying and eliminating the process bottlenecks, barriers, and problems that prevent individuals and organizations from achieving breakthrough results.


To become certified, the learner is required to demonstrate knowledge and execution of the various improvement tools and principles applicable to helping a team navigate the DMAIC process. DMAIC stands for Define, Measure, Analyze, Improve, and Control – it is the framework that improvement professionals follow to solve complex business problems. Within this training, the learner is provided an introduction to the DMAIC process as well as the tools and concepts to successfully implement the framework wherever they go.


To assist with retention of the learning materials and demonstrate a high-level of competency, the learner must pass Green Dot’s Green Belt certification exam. This exam is designed by the experienced professionals at the Green Dot Group and is benchmarked against the American Society of Quality’s (ASQ) certification exam. Upon passing the exam, the learner will be certified by the Green Dot Group.

If the learner wishes to certify through ASQ, they will need to satisfy ASQ’s examination requirements detailed on ASQ’s website.


After certifying their knowledge, a Green Belt can begin applying their new knowledge to affect real world change. Although Green Belts are not traditionally employed as full-time improvement professionals, they can nonetheless make an impact on how their organization operates and serves its customers. Green Belts can lead their own teams with appropriate coaching, mentorship, and oversight from an experienced improvement professional. The Green Belt plays a critical role within the Lean organization because they add capacity to the organization’s ability to improve while allowing the organization’s Black Belts (if any exist) to operate at a higher level.

Green Belt Learning Objectives

Who should attend?

The Lean Six Sigma Green Belt certification course teaches a standardized problem-solving methodology that can provide the learner with a competitive advantage in their industry or career. This course is designed for:


  • Project Managers who want to learn how to use Lean Six Sigma to make their projects more successful.
  • Consultants who want to offer their clients a model for applying standardized problem-solving to help address industry challenges.
  • Managers and Directors who are seeking a proven methodology for improving results, reducing waste, standardizing processes, and engaging their employees.
  • Members of executive leadership teams who are wishing to gain competitive advantage by creating highly reliable processes.
  • Individuals or Teams that are searching for new ways to solve complex problems.

Course Content

Once you are enrolled in the course, the links below will become live links that will take you into the corresponding course content.

Start learning today! Get maximum flexibility to learn at your own pace.

  • Duration
    60 - 80 hours
  • Lessons
  • Quizzes
  • Skill Level
    advanced level

Training Options

Individual, Self-Paced

The individual enrollment training option is for self-guided learning. After enrolling in the course, the learner will gain access to all learning modules and downloadable content, but will have to navigate the curriculum independently.

Corporate Training

Looking for a more customized and hands-on learning experience? The Green Dot Group can train your employees on your schedule, in-person or online. We can also support your new learners through their first projects.


Key benefits of training with Green Dot includes:


  1. Cohort Approach: Manage your team’s learning online and track their progress with targeted reporting.
  2. Hands-on Coaching: To supplement the learning, each learner will receive mentorship and coaching from an experienced improvement professional.
  3. Flexibility: Choose from virtual, face-to-face, and e-learning options to allow your learners to learn when they want, how they want, when they want.
  4. High Caliber Training: Training is benchmarked against various governing bodies such as the American Society for Quality (ASQ).
  5. Immediate Results: Employees participate in robust learning and certification through a final exam to ensure the training sticks and can be applied to solving real world problems.

Define Phase

The primary objective of the define phase is to establish the purpose of the project and why it is important to the organization and its customers.


Measure Phase

During the measure phase, the team conducts a baseline assessment of the organization’s current performance and sets clear goals.


Analyze Phase

To ensure the solutions make an impact, the analyze phase is critical in helping the team understand the root cause issue or issues of the problem.


Improve Phase

During the improve phase, the team conducts a small series of controlled experiments to test their ideas and solutions.


Control Phase

After the team has implemented the solutions, they will measure the impact and determine the effectiveness of the solution during the control phase. Additionally, the team will need to monitor the results and plan for continuous improvement.

Approx. 6 - 8 hours a week

Suggested: Approximately 60 - 80 hours total. It is recommended that the learner stretch the learning over 8 weeks.

Advanced level

This is an advanced course with numerous advanced tools and concepts.

Free downloadable resources

Includes tool templates and info graphics to download.

Full lifetime access

Learn at your own pace. Whenever, wherever you like. You are in control.

Certificate of completion

Digital certificate is available on download.