Lean Six Sigma Green Belt


The Lean Six Sigma Green Belt course is a comprehensive programme that equips delegates with the methodologies, tools, and statistical techniques required to lead process improvement projects within their own functional area and to support larger imp

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Duration
5 days
Course overview

Designed for
real-world delivery.

The Lean Six Sigma Green Belt course is a comprehensive programme that equips delegates with the methodologies, tools, and statistical techniques required to lead process improvement projects within their own functional area and to support larger improvement initiatives led by Black Belts. The course is structured around the DMAIC (Define, Measure, Analyse, Improve, Control) problem-solving framework and combines Lean principles with core Six Sigma statistical methods. Delegates learn how to scope a project, gather and analyse data, identify root causes, design and test improvements, and put in place controls that sustain the gains over time. Process excellence remains one of the most valued and transferable capabilities in modern business. Organisations across manufacturing, healthcare, financial services, government, retail, logistics, and technology rely on Green Belts to lead targeted improvement projects that reduce defects, improve cycle times, increase customer satisfaction, and deliver measurable financial benefits. Trained Green Belts often play a pivotal role in operational improvement, quality, customer experience, and transformation teams, and the capability is consistently recognised as a strong career differentiator across virtually every sector and geography. This course is delivered through a balanced combination of expert-led instruction, practical workshops, statistical exercises, and case-study analysis. Delegates explore each phase of DMAIC in depth, work through statistical concepts including measurement system analysis, process capability, hypothesis testing, and control charts, and apply core Lean tools such as value stream mapping, 5S, waste analysis, and standard work. The curriculum draws on widely referenced Green Belt bodies of knowledge in the Lean Six Sigma community. The programme is highly practical, with delegates encouraged to bring real workplace improvement opportunities to apply learning as they progress through the course. On completion, delegates will be able to lead Green Belt-level improvement projects from problem identification through to sustained control, contribute meaningfully to Black Belt projects, and apply data-driven decision making in their day-to-day work. For organisations, investing in Green Belt training builds a strong base of distributed improvement capability, supports operational excellence programmes, drives measurable performance gains, and develops the next generation of Black Belts and improvement leaders. Real-world case studies drawn from manufacturing, services, healthcare, and the public sector ensure that the techniques learned translate directly into the workplace.
14
Curriculum modules
From foundations to advanced topics.
30-50h
Contact hours
Live instruction with practice exercises.
Detailed course outline

The full
curriculum.

Topics covered
  • History and evolution of Lean and Six Sigma
  • Principles of Lean: value, flow, pull, and perfection
  • Principles of Six Sigma and variability reduction
  • Integration of Lean and Six Sigma
  • Belt roles and the wider improvement community
  • Project selection and benefit estimation
Topics covered
  • Project charter development
  • Voice of the Customer (VOC) capture and analysis
  • Translating VOC into Critical-to-Quality (CTQ) requirements
  • SIPOC diagrams and high-level process mapping
  • Stakeholder identification and analysis
  • Problem and goal statements
  • Project tollgate review
Topics covered
  • Process mapping and value stream mapping
  • Data types: continuous, discrete, attribute
  • Data collection planning and sampling
  • Measurement System Analysis (MSA) including gauge R&R
  • Descriptive statistics and graphical analysis
  • Process capability and performance: Cp, Cpk, Pp, Ppk
  • Baseline measurement and sigma level calculation
Topics covered
  • Root cause analysis tools: fishbone, 5 Whys
  • Failure Mode and Effects Analysis (FMEA)
  • Hypothesis testing concepts
  • Tests for means, proportions, and variances
  • Correlation and simple regression
  • Non-parametric tests overview
  • Identifying significant root causes from data
Topics covered
  • Generating and evaluating improvement solutions
  • Lean tools: waste analysis, 5S, standard work, visual management
  • Mistake proofing (Poka-Yoke)
  • Pilot planning and execution
  • Risk assessment of proposed improvements
  • Stakeholder engagement and change management essentials
  • Implementation planning
Topics covered
  • Control plans and documentation
  • Statistical Process Control (SPC) and control charts
  • Selecting and interpreting control charts
  • Visual management and daily management practices
  • Sustaining improvements and avoiding backsliding
  • Closeout reviews and lessons learned
Topics covered
  • End-to-end project case-study walk-through
  • Body-of-knowledge review and topic mapping
  • Practice questions and answer rationales
  • Mock review under timed conditions
  • Workplace application planning
  • Final knowledge review
  • Instructor-led training delivered by experienced Lean Six Sigma practitioners
  • Comprehensive course manual mapped to widely recognised Green Belt content
  • Workbooks, case studies, and project exercises
  • Statistical exercises with demonstration files for software analysis
  • Templates for project charters, SIPOC, FMEA, control plans, and reporting
  • Daily knowledge checks and continuous assessment activities
  • Mock reviews with detailed feedback
  • Final knowledge review
  • Pre-course reading and preparation materials
  • Post-course revision and mentoring support
  • Trainer support throughout the course
  • LMS access for eLearning delegates, including progress tracking and assessments
  • Certificate of Completion issued by the training provider on successful completion
Course features

What sets this
programme apart.

Comprehensive coverage of the DMAIC methodology and core Lean tools

Strong alignment with widely referenced Green Belt bodies of knowledge

Delivery by experienced Black Belts and Master Black Belts with real project backgrounds

Practical workshops covering statistical analysis, root cause analysis, and improvement design

Hands-on use of statistical software for analysis exercises

Real-world case studies across manufacturing, services, healthcare, and the public sector

Daily knowledge checks and continuous assessment

Mock reviews under realistic conditions

Final practical review and consolidation aligned with widely recognised Green Belt content

Templates for project charters, SIPOC, FMEA, control plans, and reporting

Coverage of Lean fundamentals including value, flow, pull, and perfection

Treatment of voice of the customer, critical-to-quality requirements, and process mapping

Coaching on project selection, scoping, and benefit estimation

Group exercises promoting collaboration and peer learning

Certificate of Completion issued at the end of the programme

Post-course mentoring and revision support

Who it’s for

Designed for
practitioners and leaders.

This course is designed for professionals leading or contributing to process improvement projects within their own area of responsibility.

  • Process Improvement Specialists and Continuous Improvement Practitioners
  • Quality Engineers, Quality Analysts, and Quality Assurance Professionals
  • Operations Managers, Supervisors, and Team Leaders
  • Production and Manufacturing Engineers
  • Service Delivery and Customer Experience Managers
  • Banking and Insurance Operations Professionals
  • Healthcare Improvement Leads and Clinical Operations Managers
  • Public Sector and Government Service Improvement Professionals
  • Project Managers and PMO Analysts
  • Business Analysts and Process Analysts
  • Supply Chain, Logistics, and Procurement Professionals
  • Consultants and contractors supporting client improvement programmes
Skills you’ll gain

Outcomes that
translate to work.

On successful completion of this course, delegates will be able to:

  • Explain the principles of Lean, Six Sigma, and combined Lean Six Sigma
  • Apply the DMAIC methodology to structure improvement projects
  • Define and scope an improvement project using charters, SIPOC, and stakeholder analysis
  • Capture voice of the customer and translate it into critical-to-quality requirements
  • Build and analyse process maps and value stream maps
  • Plan data collection and apply measurement system analysis
  • Assess process performance using descriptive statistics and process capability
  • Apply hypothesis testing, correlation, and regression to identify root causes
  • Apply Lean tools including waste analysis, 5S, standard work, and visual management
  • Design, pilot, and implement improvement solutions
  • Apply control plans, SPC, and visual management to sustain improvements
  • Apply the full Green Belt body of knowledge confidently in the workplace
  • Application of the DMAIC methodology to structure improvement projects
  • Project scoping, stakeholder analysis, and benefit estimation
  • Voice of the Customer capture and CTQ translation
  • Process mapping, SIPOC, and value stream mapping
  • Data collection planning and measurement system analysis
  • Process capability and sigma-level assessment
  • Hypothesis testing, correlation, and regression analysis
  • Root cause analysis using fishbone, 5 Whys, and FMEA
  • Lean tools including waste analysis, 5S, standard work, and Poka-Yoke
  • Pilot planning, implementation, and basic change management
  • Control planning and SPC chart interpretation
  • Use of statistical software in a Green Belt context
Delivery methods

Flexible ways
to learn.

Classroom

Traditional in-person delivery at a training venue, featuring face-to-face interaction, statistical workshops, group exercises, and case-study analysis. Ideal for delegates who prefer immersive learning and direct engagement with peers and instructors.

Virtual Instructor-Led (VILT)

Fully interactive live training delivered through a virtual classroom platform. Includes live trainer-led sessions, breakout rooms for statistical exercises and case-study work, and trainer support. Suitable for delegates working remotely or operating across multiple geographies.

eLearning

Self-paced online study through a structured Learning Management System with modular video content, downloadable resources, statistical demonstrations, knowledge checks, and review activities. Designed for delegates requiring maximum flexibility around work commitments.

Corporate Onsite

Tailored delivery at the client’s premises or private virtual environment for in-house teams. Content, case studies, and exercises can be customised to reflect the organisation’s sector, processes, and strategic priorities.

Career opportunities

Where this
course takes you.

Relevant job roles

Widely valued as a strong career differentiator across sectors Supports progression to Black Belt and Master Black Belt Opens access to improvement, quality, and operations leadership roles

Industry demand

Reflects modern improvement priorities including customer experience and digital operations Integrates well with quality management, project management, and transformation programmes Interactive, discussion-led delivery with daily knowledge checks Flexible delivery formats including Classroom, VILT, eLearning, and Corporate Onsite Post-course mentoring and revision support

Career progression

  • Yellow Belt → Green Belt → Black Belt → Master Black Belt
  • Analyst → Senior Analyst → Improvement Manager → Head of Operational Excellence
  • Engineer → Quality Engineer → Quality Manager → Director of Quality
  • Consultant → Senior Consultant → Principal Consultant → Practice Lead

Departments where skills apply

  • Operations and Production
  • Quality and Compliance
  • Continuous Improvement and Operational Excellence
  • Customer Experience and Service Delivery
  • Supply Chain and Procurement
  • Project and Programme Management Offices
Frequently asked

Questions, answered.

1. What is a Lean Six Sigma Green Belt?
A Green Belt is a trained practitioner who leads Green Belt-level improvement projects within their own area and supports larger Black Belt projects. Green Belts apply the DMAIC methodology, core Lean tools, and key statistical methods to deliver measurable improvements.
2. Are there any prerequisites?
There are no formal entry requirements. Some familiarity with business processes and basic numerical literacy will help delegates gain maximum value.
3. How long is the course?
Classroom and Virtual Instructor-Led delivery runs for 5 days. eLearning is self-paced and typically completed within 30 to 50 hours of structured content.
4. Is statistical software covered?
Yes. Statistical analyses are demonstrated and practised using a representative statistical software platform. Comfort with basic numerical work is recommended.
5. What certificate will I receive on completion?
Delegates who successfully complete the course receive a Certificate of Completion issued by the training provider.
6. How is Green Belt different from Yellow Belt and Black Belt?
Yellow Belts have an introductory understanding and typically contribute to projects. Green Belts lead Green Belt-level projects and support Black Belt work. Black Belts lead larger and more complex improvement projects, while Master Black Belts operate at programme and enterprise level.
7. Does the course require a project?
Course attendance itself does not require a completed project. Delegates are encouraged to bring real workplace improvement opportunities to apply learning as they progress through the course.
8. What delivery methods are available?
The course is offered in four formats: Classroom, Virtual Instructor-Led (VILT), eLearning, and Corporate Onsite.
9. Can the course be tailored for our organisation?
Yes. Corporate Onsite delivery supports customisation, including bespoke case studies, sector-specific examples, and alignment with the organisation’s existing improvement programme.
10. What materials are provided?
Delegates receive a comprehensive course manual, case studies, statistical exercise files, templates, and revision resources.
11. Is the course suitable for service and transactional environments?
Yes. The programme is sector-agnostic and includes case studies and examples from financial services, healthcare, government, and shared services, in addition to manufacturing.
12. What career paths does this course support?
It supports careers in continuous improvement, quality, operations, customer experience, project management, and consulting across virtually every industry.
13. How does Green Belt complement other capabilities?
Green Belt complements project management capability, quality management practice, and analytical skills. It is a strong foundation for further progression to Black Belt and Master Black Belt.
14. Is there post-course support?
Yes. Delegates have access to post-course revision materials and instructor mentoring support to help apply Green Belt learning to real workplace projects.
15. How is progress tracked during the course?
Progress is tracked through daily knowledge checks, structured exercises, mock reviews, and a final knowledge review. eLearning delegates also have progress dashboards in the Learning Management System.