Level 3 · Aligned with the ASQ CSSGB Body of Knowledge (full DMAIC, statistics, SPC)

Lean Six Sigma Green Belt

Organisation, Lean, DMAIC, MSA, Cp/Cpk capability, hypothesis testing, regression, DOE basics, SPC, FMEA.

Who it is for — Improvement project leaders, quality and methods engineers, production or service managers.

24 lessons 72 graded practice questions 36 mock exam questions 6 numerical cases Available languages : DE · EN · ES · FR · IT

Private training. The PROMACEO LEAN certificate is not a certification: it does not exempt you from any exam or prerequisite required by ASQ, IASSC, CSSC, the LCI or any other body.

Detailed syllabus

Unit 1Six Sigma and the organization

  1. 01
    The value of Six Sigma for the organizationConnect the Six Sigma approach to organizational goals and quantify its value through the cost of poor quality.
    3 QCM
  2. 02
    Systems, processes, roles and stakeholdersDescribe a process by its inputs, outputs and metrics, and identify who owns it and who has a stake in it.
    3 QCM
  3. 03
    Lean in the organization: flow, waste and constraintsApply the five Lean principles, recognize the eight wastes and manage a flow through its constraint.
    3 QCM
  4. 04
    Value stream mapping and Design for Six SigmaBuild a quantified VSM (cycle time, lead time, PCE, takt) and know when to use DFSS rather than DMAIC.
    3 QCM

Unit 2Define phase: framing the project

  1. 01
    Selecting the project and writing the charterChoose a project with a prioritization matrix and write a complete charter: problem, SMART goal, scope, metrics.
    3 QCM
  2. 02
    Voice of the customer: CTQ, Kano model and QFDCollect the voice of the customer, translate it into measurable critical requirements (CTQ) and prioritize it with Kano and QFD.
    3 QCM
  3. 03
    SIPOC, stakeholders and team dynamicsFrame the process with a SIPOC, analyse stakeholders and run an effective project team.
    3 QCM
  4. 04
    Planning the project and managing risksPlan a DMAIC project (Gantt, critical path, PERT), analyse its risks and pick the right one of the seven management tools.
    3 QCM

Unit 3Measure phase: measuring with rigour

  1. 01
    Mapping the process and collecting dataMap the process in detail, choose the data type and sampling method, and size a data-collection plan.
    3 QCM
  2. 02
    Descriptive statistics, probability and distributionsSummarize data by centre, spread and shape, and use the normal, binomial and Poisson distributions.
    3 QCM
  3. 03
    Measurement system analysis and Gage R&RQualify a measurement system (bias, linearity, stability, repeatability, reproducibility) and interpret a Gage R&R.
    3 QCM · 1 numerical cases
  4. 04
    Capability, sigma level and yieldCalculate and interpret Cp, Cpk, Pp, Ppk, sigma level, DPU, DPMO and RTY, and know when each index applies.
    3 QCM · 2 numerical cases

Unit 4Analyze phase: exploratory analysis, hypothesis testing and root causes

  1. 01
    Multi-vari studies: locating variation before testing itDesign a multi-vari sampling plan, draw the chart and determine whether the dominant variation is positional, cyclical or temporal.
    3 QCM
  2. 02
    Correlation and simple linear regressionCompute a correlation coefficient and a regression line, judge the slope's significance from its p-value and use the model to estimate without extrapolating.
    3 QCM · 1 numerical cases
  3. 03
    Hypothesis testing: fundamentals, α and β errors, powerState H0 and H1, choose α, interpret a p-value, distinguish statistical from practical significance, and size a sample from the target power.
    3 QCM
  4. 04
    Tests on means, variances and proportions: t, F, ANOVA, chi-squareChoose the test suited to the data (one- or two-sample t, paired t, F, ANOVA, chi-square), compute the test statistic and interpret the result against the critical value or the p-value.
    3 QCM
  5. 05
    Root causes, gap analysis and waste analysisLead a data-verified root cause search (Ishikawa, 5 Whys, relational matrix, fault tree, FMEA, Pareto) and quantify the gap between current and target state, including in terms of waste.
    3 QCM

Unit 5Improve phase: designed experiments, solution selection, pilots and Lean tools

  1. 01
    Design of experiments: vocabulary, factorial designs, effects and interactionsMaster DOE vocabulary, choose between full and fractional designs according to the run budget, and compute then interpret a main effect and an interaction.
    3 QCM
  2. 02
    Selecting, proving and deploying a solution: cost-benefit, pilot, PDCA, KaizenRank solutions with a weighted matrix and a cost-benefit calculation, secure deployment through proof of concept and pilot, and choose between PDCA, daily Kaizen and Kaizen blitz.
    3 QCM
  3. 03
    Eliminating waste: 5S, standard work, poka-yoke, pull systems and kanbanSelect and apply the Lean tool suited to an identified waste: 5S, standard work, poka-yoke mistake-proofing or a pull system sized with kanban.
    3 QCM
  4. 04
    Reducing cycle time: continuous flow, takt and SMEDQuantify the effect of batch size on lead time, balance a flow to takt time and lead an SMED effort by separating internal and external operations.
    3 QCM · 1 numerical cases

Unit 6Control phase: statistical process control, control plan and sustaining gains

  1. 01
    SPC: objectives, common and special causes, rational subgroups and chart selectionExplain what a control chart detects and does not detect, form rational subgroups and select the appropriate chart (X̄-R, X̄-S, I-MR, median, p, np, c, u) according to the data type.
    3 QCM
  2. 02
    Building and reading a control chart: limits, detection rules, specificationsCompute the limits of an I-MR, X̄-R, p or c chart, apply the special-cause detection rules and distinguish control limits from specification limits.
    3 QCM · 1 numerical cases
  3. 03
    Sustaining: control plan, documentation, training, audits, handover, TPM and visual factoryWrite a complete control plan, organise document control, training and audits, hand the process over to its owner with a measured benefit, and use TPM, Andon and Jidoka to hold the improved process.
    3 QCM

Mock exam

36 questions drawn at random from every unit, 60 minutes, 70% pass mark. Unlocked once every lesson and every case has been completed.

Body of knowledge

Aligned with the ASQ CSSGB Body of Knowledge (full DMAIC, statistics, SPC). References →

Certificate

When you pass the mock exam (≥ 70%), you download a personal PDF certificate with a verification QR code. It explicitly states that it is a private, non-certifying training program.

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