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Technische Universität München (Technical University of Munich)

Lean Six Sigma: Green Belt Sustainability Project

Technische Universität München (Technical University of Munich) via edX Professional Education


Every employee is involved in business processes to create products or services. The causes of decreasing customer satisfaction and increasing quality costs are often unknown, so derived solutions often only address symptoms. Six Sigma methods and tools enable a systematic solution of typical process problems and lead to sustainable operational excellence.

Go from Yellow to Green Belt in this project-based Lean Six Sigma course. With the TUM Yellow Belt, you have mastered the body of knowledge of our Green Belt (according to the American Society for Quality standards). Our Green Belt certification requires the implementation of a Six Sigma project (as recommended by the International Society of Six Sigma Professionals), just as the driving experience is necessary to obtain a driver’s license.

To earn the TUM Lean Six Sigma Green Belt certification, you will implement a predefined standard project on environmental littering. The goal: “Improve the cleanliness of areas around selected places in your hometown and control the sustainability of your measures.” This project topic supports the United Nations Sustainability Goal #11: Sustainable Cities and Communities. To reach this goal you will drive along the DMAIC, accompanied by a Master Black Belt as co-pilot. The route is determined by our navigation software (sigma guide). We will stop at every important sigma tool, which you will then apply in practice and document in a project storybook. This storybook will demonstrate the operational excellence of and in your work. (Please note: The implementation of company-specific, individually supported business projects for certification are not included in this edX/TUM course)

We will guide you through your improvement project. Each DMAIC phase concludes with a project review by a Lean Six Sigma Master Black Belt. With the feedback on your achieved project results, we keep you on track before you start the next DMAIC phase. You will also participate in weekly live sessions online, where we will discuss the tools and logic of Six Sigma in-depth and answer any questions. The e-book for the course, Six Sigma Green Belt Certification Project, is included in the course price.

Green Belt Certification: Learners will be awarded the TUM Lean Six Sigma Green Belt Certification after completing this course and all of its requirements, including:

  • Previous acquisition of the TUM Lean Six Sigma Yellow Belt certificate,
  • Application of the sigma tools (sigma guide),
  • Documentation of the results in a project storybook,
  • Five graded reviews of the project storybook along with the DMAIC phases,
  • Participation in at least 10 open-online-sessions,
  • Delivery of the completed project storybook and the collected data.

Once a year we present the Environment Green Belt Award for the best Lean Six Sigma certification project. In addition to the basic certification criteria - a correctly implemented and documented project - an excellent project is required, with a project sponsor and a strong, sustainable reduction of litter at a local hotspot.

This course won the 2021 Runner-Up Award - Blended Learning - Academic Division 2021 of the International E-Learning Association (IELA)


Part 1: Introduction

Introduction to Six Sigma as a company-wide improvement program, based on a structured approach to linking reality, methods, and statistics.

Part 2: DEFINE

Identification and definition of a suitable Six Sigma project, structuring the project field in its core process steps (SIPOC), translating Voice of Customer (VoC) and Voice of Business (VoB) to CtQ’s as most important problems (Y), summarized in a Project-Charter for all stakeholders and supplemented by a stakeholder communication plan.


Input-Analysis and Process-Mapping and -Analysis for identifying the triggering influences (x) of the problems (Y). Determination of the relationships between influences (x) and problems (Y) (C&E-Matrix), as the basis for deriving hypotheses. Operationalization of measurands for influences (x) and problems (Y) in a data collection plan, as the basis, to collect a sample of corresponding data.


Data evaluation and graphical display of data, representation of the process performance, in control charts and indices of the process capability, a test of hypotheses on the differences between problems (Y1 – Yn) and relationships between influences (x) and problems (Y) up to the analysis of root causes (fault tree).


Development and selection of solutions to eliminate, adjust or circumvent the root causes (x´), specification of solutions as measures, detection of their risks (FMEA), and development of countermeasures, hints for implementation.


Data evaluation and graphical display of data, representation of the process performance, in control charts and indices of the process capability, a test of hypotheses on the differences (before vs. after), derivation of financial and non-financial benefits of the improvements, development of a Process-Management-Plan to control the improved process.

Part 7: Project Conclusion

Preparation of the lessons learned, completion of the Project-Story-Book, and review of this project documentation by our Master Black Belt for certification.

Learning is supported by:

* Videos: Animated application of all DMAIC tools in a sample project (43 lessons, 5:15h)

* sigma guide: Software for the implementation of Six Sigma projects (32 tools and charts)

* Methods and tools for process improvement (86 slides with the figures of this book)

* Statistics with Minitab (136 slides)

* Project-Story-Book: PowerPoint template for project documentation (60 slides)

* Project Guideline: Overview poster of all DMAIC phases and tools

* Weekly live online sessions for your questions and exchange with other learners.

* eBook: Hutwelker, R. (2019). Six Sigma Green Belt Certification Project – Identification, Implementation, Evaluation. Springer International Publishing

Taught by

Dr. Reiner Hutwelker, Holly Ott and Martin Grunow


5.0 rating, based on 20 Class Central reviews

Start your review of Lean Six Sigma: Green Belt Sustainability Project

  • Profile image for Leonardo Rapussi
    Leonardo Rapussi
    I recently completed the Lean Six Sigma Green Belt (Sustainability Project) course at the Technological University of Munich, and I am genuinely impressed with the depth and scope of this program. This course is a perfect blend of Lean Six Sigma met…
  • Anonymous
    The Lean Six Sigma Green Belt (Sustainability Project) online course at the Munich University of Technology was an incredibly enriching experience. This program offered an exceptional combination of theory and practical application, allowing me to…
  • Profile image for Pădureţu Claudiu Florin
    Pădureţu Claudiu Florin
    Under the expert guidance of Professor Reiner, I completed a Lean Six Sigma Green Belt Certification with a focus on sustainability projects. Professor Reiner infused each session with purpose, and his adept teaching style facilitated a deep understanding of how Lean Six Sigma principles can drive positive change. The sustainability project component was a highlight, allowing me to apply newfound knowledge to real-world challenges. Professor Reiner's mentorship not only equipped me with valuable skills but also instilled a sense of responsibility towards creating a more sustainable future. I highly recommend this certification program to anyone seeking to make a meaningful impact in their Lean Six Sigma skills.
  • Siham Amrani
    Despite the fact I have a background in minin engineering, I got a position where i was responsible abou the quality control in a mining company, so i decided to start new career path so i decided to take the course Yellow and Green belt with TUM…
  • Anonymous
    I highly recommend this course! I was familiar with Six Sigma beforehand and have also done some projects where we followed the Six Sigma methods to some extent. So I decided to take this course and complete my knowledge of Six Sigma. But shortly a…
  • Anonymous
    Dr. Reiner Hutwelker's Lean Six Sigma Green Belt Project course offers an exceptional learning experience. His expertise shines through clear instruction and real-world examples. The course structure is well-paced, covering the DMAIC framework thoroughly.

    Moreover, the course material is meticulously structured, allowing for a seamless progression through each phase of the Lean Six Sigma methodology. From defining project scopes to conducting root cause analyses and implementing sustainable solutions, every aspect is covered in comprehensive detail. Overall, a highly recommended course for those seeking to enhance their process improvement skills.
  • Anonymous
    Did the complete course on Lean Six Sigma including the Yellow Belt precourse which focus more on the body of knowledge and the basics, while the following Green Belt certificate project helps to facilitate the gained knowledge into practice via a s…
  • Anonymous
    The Lean Six Sigma Yellow & Green Belt courses offered by the Technical University of Munich (TUM) are the great opportunity to reach high quality trainings from a reputable organization. Six Sigma is a powerful methodology in reducing process varia…
  • Profile image for Jose Tavares
    Jose Tavares
    Before I took this course, I never imagined I could reach such great results, but I managed to come through with the help and guidance of Dr Reiner. The Lean Six Sigma Yellow & Green Belt Course offered by TUM was an excellent surprise since it con…
  • Robbe Maselis
    This Green Belt certification course, offered by TU München and taught by Prof. Reiner Hutwelker, applies all knowledge from the corresponding Yellow Belt course to a littering project in your own town. The video lectures by Prof. Hutwelker, the ass…
  • Anonymous
    I first heard about Six Sigma and Lean from a coworker, and it picked my interest. I had been working with mining and mineral processing and then moved into a leadership role in the R&D department focused on product development and technical service…
  • Anonymous
    I found the course excellent.

    The material is really good and the professors are very competent but what really make the difference vs other MOCS is that you get personalized attention:

    - You have the possibility to attend to weekly live sessions with the professor and other peers

    - You get your submittals back appraised with personal comments.

    - You have easy access to the professor via email. They are very responsive.

    At the end of the course you really feel that you get knowledge applicable straight forward to your job.
  • Moritz
    The project in this course is about the littering situation in your hometown – it’s a nice idea to have a positive impact on our planet while doing this certification project. You learn how to apply the learned Six Sigma methods (Yellow Belt Course)…
  • Anonymous
    The Lean Six Sigma Green Belt Certification was well put together. The Master Black Belt instructor, Reiner, was fantastic helping navigate the DMAIC methodology. The program materials and online lectures are very clear and challenged me to develop this skill set. I plan on applying these methods and techniques in my future endeavors. I will be working with my company on creating a continuous improvement culture this year using what I learned from this program and Reiner.
  • Anonymous
    I absolutely loved this course!! The open lectures and guidance by the professors helped me sail through the project. The professors provided excellent continous support! After finishing the course , one can expect to have a detailed knowledge about how to apply DMAIC knowledge in a practical sense. Overall, it has been a very happy journey with TUMx team!!
  • Anonymous
    I am very appreciative that TUM offers this nice project for me. Six Sigma is a powerful methodology in reducing process variation and it's beneficial to many industries. As a student, I don't have any related Six Sigma working experience with a com…
  • Anonymous
    I have done a couple of edX MicroMasters and Professional Certificates, and I can honestly say that the offered Green-Belt is by far the best program I participated. It starts with its well-structured approach, a great mix of readings, exercises, tools, videos, online lectures and highly passionate and motivating teachers. While the Yellow Belt prepares the base, the Green Belt Project really helps to get the meat on the bone and ensure a full understanding of the process. The gained knowledge is like a Swiss Army Knife for continuously improvements - I’m sure being able to leverage it at many occasions to become more efficient/effective, increase the customer satisfaction and finally save costs.
  • Anonymous
    The Green Belt course provided by the university of Munchen is a complete course to understand all necessary tools for continuous improvement. By attending this course, I learned about how to improve processes by using the DMAIC steps in a project.

    In addition to, it's a well-structured approach with a mixed tools (video, text, and application "sigmaguide").

    Finally, as this certificate is internationally recognized, I was promoted in the company where I worked.

    So, I advise you, don't hesitate because that helped me to enhance my career.
  • Anonymous
    The Lean Six Sigma Green Belt course is nice practical course to apply your knowledge in the Lean Six Sigma Yellow Belts courses. I understand clearer and more confident about Lean Six Sigma after practicing my standard predefined project. Weekly live online session in the course is very helpful and it is one of difference than other MOOCs. I appreciate very much Dr. Reiner who supported me and other learners during the course.
  • Anonymous
    Participants get a lot of individual guidance during the course, which is great. There are no peer reviews like in many online courses. This is a big plus.

    In addition to the videos, the material is available as a course book (no extra cost). The book may come handy afterwards in real projects as well.

    If the topic of Six Sigma is something you are interested in, you should consider taking this course.

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