Lean Six Sigma Green Belt

The Lean Six Sigma Green Belt certification is a professional credential that validates an individual’s expertise and ability to manage process improvement projects following DMAIC methodology. It demonstrates individual ability to lead improvement projects and/or serve as a team member in a more complex improvement. They understand how to implement, interpret, and apply Lean Six Sigma at a high proficiency.

The British Quality Foundation ‘BQF’ Academy offers a range of certificated pathways for those wanting to recognise the talents and achievements of both individuals and teams involved in improvement, transformation or simply a journey towards excellence.

The training and certification assessments are carried out by using only the best training providers and the BQF stamp of approval is a guarantee of quality.

Certification Process

  • Training: Complete the training programme.
  • Examination: Pass an online ‘open book’ test – 50 questions and an 80% pass mark.
  • Lean Six Sigma project: Demonstrate participation and leading in complete DMAIC project.

Understanding of Lean Six Sigma

  • The Key Principles of Lean and Six Sigma.
  • The different methodologies: DMAIC (Process Improvement), rapid improvement events and when to use.
  • Implement successful change management in the organisation.
  • Use of financial benefit analysis to gain support.
  • Gaining commitment.
  • Managing change and the need for soft tools to get buy-in.
  • Ensure stability and performance of solutions and improvements over a long period of time.
  • Leading an Improvement Project Team.

Lean Six Sigma Green Belt Project / Storyboard

Candidates need 1 project demonstrating their practical application of LSSGB concepts, tools and techniques.

  • Complete a DMAIC project using the Green Belt body of Knowledge demonstrating benefit.
  • Presentation of DMAIC storyboard.
  • Demonstrate knowledge of techniques and tools to effectively manage projects.

Lean Six Sigma Green Belt Body of Knowledge

  • Define
    • Project selection
    • Project Charter including business case
    • Business case
    • Problem and Goal statements
    • Scope
    • Project Milestones
    • Team Roles and Responsibilities
    • Stakeholder Analysis
    • Communications Plan
    • SIPOC
    • Gathering voice of the Customer and generating CTQ statements
    • Project Risk Analysis
  • Measure
    • As Is Process
    • Spaghetti diagrams, process stapling, Functional deployment maps (Swim lane) and Value Stream Maps
    • Gathering the right data throughout the process; Understanding Output and Input process
    • Sampling from populations and processes
    • Developing a measurement plan including operational definitions and Sampling and sample size
    • Measurement systems analysis (concepts of Gauge R&R and Attribute Agreement Analysis),
    • Understanding Variation
    • SPC basics including identification of common and special cause process variation and why
    • Sources of variation; 4M or similar
    • How to construct control charts; XmR and X bar-R
    • Awareness of other SPC charts
    • Calculation of baseline performance and process sigma using DPMO
    • Process capability (simple Cp and Cpk)
  • Analyse
    • Process value added analysis,
    • Cause and effect analysis; 5 Whys + fishbone diagram or similar
    • 7 Wastes / Muda
    • Graphical analysis and Segmentation (Stratification) including histograms, Pareto charts and scatter plots
    • Identification and Verification of Root Causes
    • Correlation and regression analysis – awareness
    • Hypothesis testing – awareness
    • Design of Experiments (DoE) – awareness
    • Logical Cause Matrix
    • Financial assessment of root causes – Quantified Opportunity
  • Improve
    • Ideas generation – Brainstorming and creativity techniques
    • Enabling processes to flow; push vs pull processes
    • Reducing process set up or changeover time
    • Organising work areas and standardising practices; 5S
    • Achieving the customers requirements; Takt Time
    • Removing process constraints; theory of constraints or similar
    • Creating the future state process map
    • Prioritisation matrix and other selection techniques
    • FMEA
    • Error Proofing (Poka Yoke)
    • Project planning
    • Force field analysis,
    • Cost benefit analysis
  • Control
    • Standardisation and documentation
    • Process Improvement implementation including Control plan, training plan, communications and implementation plan
    • Visual Management
    • Process Response plan
    • Using Control Charts in the control phase to:
      • Assess impact of improvement
      • Understand current performance
      • Monitor future performance
    • Project handover and ownership
    • Sustaining the gains through Process

There is no requirement for Green Belts to be able to use specific statistical software such as Minitab, nor to understand the advanced statistical concepts that underpin it. Hence topics such as hypothesis tests, regression analysis and DoE are required at the awareness level only so the candidate should be aware that these tools exist.