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Delivering Process Excellence: Lean Six Sigma Green Belt Certification


Improving productivity is a key priority for today’s organisations, both large and small.

Six Sigma is a powerful management tool that promotes process improvement, cost reduction and significant enhancement of bottom-line performance. Lean thinking focuses on the elimination of non-value adding work and reduction in waste to increase profitability. It is no surprise that Lean combined with Six Sigma is one of the most popular business initiatives today.

This five-day programme provides participants with a deep understanding of how to deliver process excellence, and equip them with a practical toolkit to achieve sustainable improvements in their own organisation’s processes. We shall use Lean Six Sigma, a well-established methodology that enables individuals and organisations to improve the efficiency, productivity and quality of products and services. The concepts, tools and techniques of Lean Six Sigma are based on understanding and meeting customer needs, being responsive to change and reducing waste, thereby continually improving quality.

We are open to multiple participants from the same company attending as this forms a great opportunity to build process improvement capability.

Teaching methods

We will use a variety of teaching methods, including case studies, lectures, exercises, group discussions, quantitative analysis, process observations and benchmarking. We will draw on examples from public and private sector organisations, large and small, that exemplify different sorts of operations. The sessions are designed to be interactive, with a high-level of participant participation. Participants will be encouraged to raise questions and issues pertinent to their own background and experience and there are opportunities for the participants to reflect on their learning. Participants will also have the opportunity to observe a real-world operation in action and then identify best practice, improvements and potential innovations. 

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Lean Six Sigma Green Belt Certification

During this programme we will examine thoroughly the concepts of Lean and Six Sigma. Participants will develop proficiency in the use of process improvement tools and techniques, with insight on both manufacturing and service contexts. Throughout the course, we consider the challenges of Lean and Six Sigma programme implementation in real business situations.

There are two elements that are required to be successfully completed in order to be awarded the Green Belt Certification: the Lean Six Sigma Green Belt Certification Exam and the Lean Six Sigma Project. The course content will provide participants with a body of knowledge that is consistent with the exam requirements for Lean Six Sigma Green Belt certification. Subsequently, participants will demonstrate the practical application of the Lean Six Sigma concepts to a process improvement project over a six-week period to qualify for the Green Belt certificate. 

Lean Six Sigma Certification Exam

At the end of the taught programme, participants will sit the Lean Six Sigma Green Belt Certification Exam. This is a two-hour closed book exam based on the Lean Six Sigma Green Belt Body of Knowledge. An overview will be circulated to participants prior to the course, but the topics will be covered in totality during the taught sessions. The exam is designed to evaluate the participants’ knowledge of the Lean Six Sigma concepts and tools. 

There will be 20-25 short answer questions. Students will be expected to answer all questions, which are both qualitative and quantitative, in the two hours. The pass mark is 70/100. Any participant not achieving the pass mark will have one option to re-sit the exam before moving on to the Lean Six Sigma Project. Worked examples of sample exam questions will be provided during the first days of the programme.

Lean Six Sigma project

After successfully passing the Green Belt Certification exam, participants will work individually over a period of six weeks on a Lean Six Sigma project to observe a process in their workplace, identify improvement opportunities and make recommendations supported by data and analysis.

During the Lean Six Sigma project, participants are required to: 

  • Follow a Lean Six Sigma project framework (DMAIC or DMADV) and employ on average two to three tools per phase (minimum of 12 tools)
  • Observe the process and collect data on the process over different time periods (minimum 30 observations), as well as compiling customer and employee feedback
  • Analyse the data and identify root causes
  • Develop recommendations and a case for change, including how benefits can be sustained
  • Deploy any quick wins.

The projects need to be completed prior to the project presentations approximately six weeks later in Cambridge.

Presentation made remotely via Skype can be discussed prior to application.


By the end of the programme, participants will be able to:

  • Understand the drivers of process excellence
  • Critically analyse the processes and performance of an organisation's operation
  • Understand the Six Sigma philosophy, its methods and phases
  • Comprehend the concepts of Lean Thinking and its applications
  • Identify and apply Lean Six Sigma tools and techniques to ensure lasting improvements
  • Recognise the management challenges of delivering process excellence
  • Reflect on the organisational context within which Lean Six Sigma enables process to be improved
  • Observe a real-world operation in action and identify best practice, improvements and potential innovations.
  • Work individually on a Lean Six Sigma project – participant will observe a process in their workplace, identify improvement opportunities and make recommendations supported by data and analysis.
  • Learn from a diverse cohort comprising multiple nationalities and industries. This enriches the learning experience as you share discuss and debate and share personal experiences

The programme has a practical focus and will involve examples and projects relevant to participants’ work areas. Completion of the programme leads to the widely recognised and formally certified Lean Six Sigma ‘Green Belt’ qualification. All sessions are taught by experienced Cambridge Judge Business School academic faculty, who are qualified instructors in the Lean Six Sigma ‘Green Belt’ qualification, and have extensive teaching and consulting experience.

Who should attend

The programme is applicable to anyone who works in or oversees an operational role. They will be in a junior-middle-management role or be interested in gaining deep understanding of how to deliver process excellence.

As part of the application process, applicants will need to ask their line manager or sponsoring executive to fill in and sign part of the application form. It is important that applicants have the willingness and full support of the organisation as it's imperative for completion of the Lean Six Sigma practical project.

We are open to multiple participants from the same company attending as this forms a great opportunity to build process improvement capability.

I had the privilege of studying at CJBS for an excellent, informative and enjoyable Lean Six Sigma Green Belt course, in July 2015, for one week. The course was well thought out and a good mix of classroom based learning and group exercises to keep us on our toes. At the time I had just began a new role as Operations Manager for two of Laing O'Rourke’s pre-cast concrete factories. The course gave me a lot of food for thought in my new role, especially how I could and should improve the factories processes. I was able to challenge the status quo and shown the team the value of making some small changes, which then gave us noticeable improvement. I would recommend CJBS to anyone looking at improving their process skills.
Jonathan Chew, Senior Project Manager, Laing O'Rourke

Faculty & speakers

Jane Davies

Jane Davies

Senior Faculty in Management Practice

DBA (Boston University)

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Benn Lawson

Benn Lawson

University Senior Lecturer in Operations Management

PhD (University of Melbourne)

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Dates & fees

Dates Duration Fees *
2019 dates tbc 5 + 1 days £3,995 + VAT

VAT is charged at the prevailing rate, which is currently 20%; e.g. £3,995 + 20% = £4,794.

* Fees include instruction, materials, lunch, breaks and a college dinner. Preferential rates may be available for groups, University of Cambridge alumni and members of the School's Alumni Association. Please note prices pre-registration are subject to change.

For information regarding payment terms, cancellation rights, transfer policies and fees, please see our terms & conditions documents:

Terms & Conditions for Self-funded Applicants (pdf, 233KB) (updated 31 January 2018)
Terms & Conditions for Organisation-funded Applicants (pdf, 250KB) (updated 31 January 2018)

Registration closes at midday two working days before the programme start date.

Participants are expected to attend the full programme.

If you have any questions or would like to have a chat about this programme and how it could benefit you or your organisation, please get in touch with the programme advisor:

Jasmin Abdel-Moneim

Sales & Business Development Manager
Tel: +44 (0)1223 768071

Jasmin Abdel-Moneim

Version 6 (2 October 2018)

Register your interest

Dates for 2019 have not yet been confirmed. Register your interest in this programme and we'll let you know when the dates are finalised.


Please contact Sales & Business Development Manager Jasmin Abdel-Moneim to find out more about the programme.

Tel: +44 (0)1223 330741

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