📚
KEEPLEAN Training Encyclopedia
Welcome to the interactive encyclopedia for Lean, Six Sigma, and Lean Six Sigma training. Explore certification levels, delivery formats, DMAIC tools, and learning paths to guide your training choices.

🎯 Where to start?

If you are new, begin with Belt Levels to identify the right certification for your role. Then check Delivery Formats based on your constraints. Use the search bar to quickly find any tool or concept.

🎓
Belt Levels
White, Yellow, Green, Black, MBB — find the level that matches your role
🖥️
Training Formats
Classroom, virtual, e-learning, instructor-led — choose your delivery mode
🔁
DMAIC Framework
5 phases: Define, Measure, Analyze, Improve, Control — the core of LSS
🛠️
LSS Tools by Phase
5S, VSM, Fishbone, FMEA, Poka-Yoke, SPC and many more
🏭
Lean Concepts
5S, VSM, Kaizen, SMED, TPM, JIT, Jidoka — Toyota Production System
📊
Statistical Tools
DOE, Taguchi, ANOVA, Regression, RSM, TRIZ, hypothesis testing
🔬
Advanced Topics
PCA, Weibull, RSM, Change Management, Python/R — Black Belt and MBB level
🤝
Soft Skills
Leadership, communication, emotional intelligence, conflict resolution
🗺️
Training Roadmap
Full Green Belt learning path, tollgates, assessments, phase durations
🏅
Belt Certification Levels
Lean Six Sigma certifications are structured in progressive levels, from the introductory White Belt to the expert Master Black Belt. Each level corresponds to a specific organizational role.
⬜ White Belt

Awareness

Introductory training providing basic awareness of Lean and Six Sigma concepts and vocabulary. Aimed at anyone who needs to understand the approach but will not run projects.

All staff Basic concepts
🟡 Yellow Belt

Project Participant

Focused on participating in improvement projects, basic DMAIC, simple problem-solving, and data collection. Suited for team members and subject-matter experts.

Team member Basic DMAIC
🟠 Orange / Brown Belt

Intermediate Level

Intermediate level between Yellow and Green. More tools and some small project leadership, but not yet a full project owner. Offered by select providers.

Junior team leader Intermediate tools
🟢 Green Belt

Part-Time Project Leader

Trains people to lead medium improvement projects using DMAIC, Lean tools, and basic to intermediate statistics. Often part-time alongside their normal role.

Project leader DMAIC + Stats
⚫ Black Belt

Full-Time Project Leader

Full project leaders and change agents with deeper statistical analysis, leadership, and coaching skills. They coach Green Belts and manage more complex or strategic projects.

Full-time Advanced stats Coaching
💎 Master Black Belt

Expert & Trainer

Experts who design the deployment, train and coach Black/Green Belts, and support leadership on strategy and portfolio of projects.

Top expert level Mentor & Trainer
🏆 Champion / Executive

Manager & Sponsor

Short courses for managers to select projects, sponsor them, and remove barriers for improvement teams. Focus on governance and strategy.

Management Governance
📋
Roles & Responsibilities Mapping
Mapping between training level, post-certification role, project responsibilities, and depth of tools mastered.
LevelMain RoleProject ResponsibilityDepth of Tools
White BeltAwareness-level staffUnderstand and supportVery basic concepts
Yellow BeltTeam memberContribute on projectsBasic Lean & DMAIC tools
Orange BeltAdvanced team memberLead small improvementsBasic–intermediate tools
Green BeltPart-time project leaderLead medium projectsDMAIC, Lean, basic stats
Black BeltFull/major project leaderLead complex projectsAdvanced stats & change mgmt
Master Black BeltMethodology/portfolio expertCoach & design deploymentExpert level, mentoring
ChampionManager/SponsorSelect and sponsor projectsFocus on strategy & governance
🖥️
Training Delivery Formats
Most providers offer several formats for each belt level. The right choice depends on your time constraints, budget, geographic spread, and learning style.
🏢
In-Person Classroom
Total immersion

Intensive classroom blocks, often 3–10 days. Ideal for immersion, hands-on workshops, and group work. Allows direct interaction with the instructor and participants.

  • Benefits: Immersion, team cohesion, hands-on simulators
  • Best for: Green Belt, Black Belt with practical workshops
  • Typical duration: 3–10 days per module
🎥
Instructor-Led Training (ILT)
Direct expert guidance

Customized onsite or online sessions for teams, led by Master Black Belts. Focus on collaboration, simulations, and content tailored to company processes.

  • Benefits: Tailored content, high engagement, live Q&A
  • Best for: In-company training, certification programs
  • KEEPLEAN format: Webinars and workshops with simulators
💻
Live Virtual
Geographic flexibility

Same structure as classroom but delivered via video conference. Real-time classes with Q&A and group activities. Popular for flexibility and access to remote expert trainers.

  • Benefits: No travel, access to remote trainers
  • Best for: Geographically dispersed teams
  • Tools: Teams, Zoom, interactive LMS platforms
📱
Self-Paced Online
Learn at your own pace

Asynchronous e-learning with videos, quizzes, and optional coaching. Spread over several weeks. Less interactive but very flexible for busy schedules.

  • Benefits: Total flexibility, available 24/7, lower cost
  • Best for: White Belt, Yellow Belt, awareness training
  • Duration: At the learner's pace
🔀
Blended Learning
Best of both worlds

Combination of e-learning, live virtual sessions, and project coaching until certification. The most comprehensive approach for Green Belt and beyond.

  • Benefits: Flexibility + interaction, personalized follow-up
  • Best for: Green Belt and Black Belt with a real project
  • Structure: Online modules + live sessions + coaching
🏭
In-Company (Intra)
Tailored to your processes

Training delivered on-site, fully adapted to your organization's processes, data, and projects. Maximizes immediate skills transfer.

  • Benefits: 100% customized, direct ROI, cohesion
  • Best for: Groups of 8–20, LSS deployment
  • Content: Real company cases, KEEPLEAN simulators
🔁
DMAIC Framework
DMAIC (Define, Measure, Analyze, Improve, Control) is the fundamental structure of Lean Six Sigma. It integrates Lean tools, statistical tools, and management skills at each phase.
Total duration: 12 to 20 weeks part-time for a Green Belt. Phases 3 and 4 integrate KEEPLEAN simulators for hands-on, discovery-based learning.
D
Define
Scope the project and align with business/customer needs
1–2 weeks

🛠 Key Tools

  • SIPOC: Suppliers/Customers mapping
  • Project Charter: Project scoping
  • VOC / CTQ: Voice of the Customer
  • Stakeholder Analysis
  • TRIZ: Contradiction identification

📚 Learning Activities

  • Problem statement workshops
  • Charter creation with templates
  • TRIZ case studies for complex problems
  • VOC collection (interviews, surveys)

🤝 Soft Skills

  • Communication for VOC gathering
  • Leadership for team selection
  • Stakeholder management
M
Measure
Baseline current performance and validate data
2–4 weeks

🛠 Key Tools

  • Process Mapping: Flowcharts, Swimlane
  • Data Collection Plan
  • Gage R&R: Measurement reliability
  • Basic Stats: Mean, Std Dev
  • Capability: Cp, Cpk

📚 Activities

  • Excel / Minitab exercises
  • Collect and analyze sample data
  • Measurement system validation
  • Capability calculation

🤝 Soft Skills

  • Time management for data plans
  • Teamwork for measurement validation
A
Analyze
Identify root causes through data
3–5 weeks

🛠 Key Tools

  • Fishbone / 5 Whys
  • Pareto Chart: 80/20 rule
  • Hypothesis Tests: t-test, ANOVA
  • Regression: Simple & Multiple
  • TRIZ Contradiction Matrix
  • Histograms, Scatter Plots

📚 Activities

  • Root cause simulations
  • Statistical testing labs
  • TRIZ case studies
  • Inventive modeling

🤝 Soft Skills

  • Critical thinking
  • Emotional intelligence
  • Facilitating cross-functional groups
I
Improve
Test and implement solutions
4–6 weeks

🛠 Key Tools

  • FMEA: Risk analysis
  • DOE: Full/fractional factorial
  • Taguchi: Robust design, S/N ratios
  • Mixture Designs: Formulations
  • RSM: Response Surface Methodology
  • Poka-Yoke: Mistake-proofing
  • VSM: Value Stream Mapping
  • 5S: Workplace organization
  • Kaizen Events
  • TRIZ ARIZ: Inventive algorithm

📚 Activities

  • Minitab labs for DOE/Taguchi/RSM
  • Pilots on KEEPLEAN simulators
  • Pilot data analysis
  • TRIZ workshops

🤝 Soft Skills

  • Leadership & negotiation
  • Obtaining stakeholder buy-in
  • Adaptability during iterations
C
Control
Sustain gains and standardize
2–3 weeks

🛠 Key Tools

  • Control Charts: Process stability over time
  • Control Plan: Monitoring standards
  • SPC: Statistical Process Control
  • Standard Work: Best practices
  • Taguchi S/N Validation

📚 Activities

  • Develop control plans
  • Project handover review
  • Train operational teams

🤝 Soft Skills

  • Conflict resolution
  • Training others for handoff
  • Documentation and communication
🛠️
Lean Six Sigma Tools by Phase
Complete reference of tools organized by DMAIC phase, integrating Lean tools (waste reduction) and Six Sigma tools (variability reduction).
Define
Define
SIPOC Diagram
Maps Suppliers, Inputs, Process, Outputs, Customers for high-level scope
Define
Voice of Customer (VOC)
Captures customer needs via surveys or interviews to set CTQs
Define
Project Charter
Outlines goals, scope, team, and timeline of the project
Define
Stakeholder Analysis
Identifies and analyzes the impact and influence of all stakeholders
Measure
Measure
Process Mapping
Flowcharts, Swimlane Diagrams — visualizes steps and handoffs to baseline performance
Measure
Data Collection Plan
Specifies what, how, and when to measure
Measure
Gage R&R
Checks measurement system reliability (repeatability and reproducibility)
Measure
Process Capability (Cp, Cpk)
Measures how well the process meets specifications
Analyze
Analyze
Fishbone (Ishikawa)
Categorizes root causes (Man, Machine, Method, Material, Environment)
Analyze
5 Whys
Repeatedly asks "why" to drill down to the root cause
Analyze
Pareto Chart
Prioritizes issues by the 80/20 rule
Analyze
Histogram, Scatter Plot, Box Plot
Visualize data distribution, outliers, and correlations
Improve
Improve
FMEA
Failure Modes Effects Analysis — ranks risks by severity, occurrence, detection (RPN)
Improve
Poka-Yoke
Mistake-proofing devices or processes to prevent defects at the source
Improve
Value Stream Mapping (VSM)
Identifies waste in the end-to-end value flow
Improve
5S
Sort, Set in Order, Shine, Standardize, Sustain — workplace organization
Improve
Kaizen
Continuous improvement via targeted Kaizen events (Kaizen Blitz)
Improve
Kanban
Visual pull system for flow control and WIP management
Control
Control
Control Charts
Monitors process stability over time (X-bar, R-chart, I-MR)
Control
Control Plan
Defines monitoring, responses, and standards to sustain gains
Control
Standard Work
Documents best practices to sustain improvements long-term
Control
SPC (Statistical Process Control)
Tracks variation with control charts in production
Cross-Phase Lean Tools
Lean
Spaghetti Diagram
Maps inefficient physical movement flows in a workspace
Lean
Visual Management
Boards, signage, color-coding for immediate process status
Lean
Pugh Matrix
Tool for selecting and comparing improvement solution options
🏭
Lean Concepts — Toyota Production System
Lean tools originate from the Toyota Production System (TPS). They focus on eliminating waste (muda), improving flow, and enabling continuous improvement at every level of the organization.
Lean Philosophy: Eliminate everything that adds no value to the customer — the 8 wastes (TIMWOODS): Transportation, Inventory, Motion, Waiting, Overproduction, Over-processing, Defects, Skills underutilized.
🗂️ Workplace Organization
Organization
5S
Sort, Set in Order, Shine, Standardize, Sustain — Organizes workspaces to reduce clutter and errors. The entry point of any Lean deployment.
Organization
Visual Management
Uses boards, signs, and color-coding for instant status checks without verbal communication. Examples: Andon lights, Kanban boards, floor markings, visual indicators.
🌊 Flow & Pull Tools
Flow
Value Stream Mapping (VSM)
Visualizes the end-to-end flow (materials + information) to spot waste and optimize value delivery. Distinguishes value-added from non-value-added activities.
Flow
Kanban
Card-based pull system to control work-in-progress (WIP) and trigger production only on actual demand. Eliminates overproduction.
Flow
Just-In-Time (JIT)
Produces only what is needed, when it is needed, in the exact quantity. Minimizes inventory and work-in-progress. Core TPS pillar alongside Jidoka.
Flow
Takt Time
Sets the production pace to match customer demand. Formula: Takt Time = Available Time ÷ Customer Demand. Base for workstation sizing.
Flow
Heijunka (Level Scheduling)
Smooths production to avoid peaks and valleys. Distributes volume and variety evenly over time. Reduces stress on resources and suppliers.
♻️ Continuous Improvement
CI
Kaizen
Small, incremental daily improvements involving everyone. Can take the form of Kaizen Events (Kaizen Blitz) — 2–5 day focused sessions on a targeted problem.
CI
PDCA (Plan-Do-Check-Act)
Iterative cycle for testing changes in a structured way. Plan the trial → Do it → Check results → Act: standardize or adjust. Scientific foundation of Lean.
CI
Gemba Walk
Managers and trainers go to the workplace (Gemba = "where the work happens") to observe, understand, and engage teams. Principle: do not decide from the office.
⚙️ Changeover & Maintenance
Changeover
SMED — Single Minute Exchange of Die
Dramatically reduces changeover times by converting internal operations (machine stopped) to external (machine running). Target: setup time under 10 minutes.
Maintenance
TPM — Total Productive Maintenance
Maximizes equipment availability through proactive, preventive maintenance involving operators. Key metric: OEE (Overall Equipment Effectiveness = Availability × Performance × Quality).
🛡️ Quality & Error Prevention
Quality
Poka-Yoke
Mistake-proofing devices that make defects impossible or immediately detectable. Examples: shaped fixtures, presence sensors, color coding, asymmetric pins.
Quality
Jidoka (Autonomation)
Machines stop automatically on defects. Operators have the power to stop the line (Andon). Principle: never pass a defect to the next step. Core TPS pillar with JIT.
Quality
Standardized Work
Documents the best known methods to ensure consistency and serve as a baseline for improvement. Includes: operation sequence, standard time, standard buffer stock.
🔍 Analysis & Diagnosis
Analysis
Root Cause Analysis (RCA) — 5 Whys
Digs to the true sources of the problem by repeatedly asking "Why?". Simple and powerful for shop-floor problems. Complementary to Fishbone for multiple causes.
Analysis
Bottleneck Analysis
Identifies workflow constraints that limit overall system capacity. Based on the Theory of Constraints (TOC) to prioritize improvements where they have the most impact.
Analysis
Spaghetti Diagram
Maps physical movement flows in a shop floor or office. Reveals unnecessary motion (Motion waste). Helps redesign workstation layouts.
Quick Reference Table
ToolCategoryMain ObjectiveDMAIC Phase
5SOrganizationEliminate clutter, structure workspaceImprove / Control
Visual ManagementOrganizationInstant status without communicationControl
VSMFlowMap and eliminate waste end-to-endDefine / Analyze
KanbanPull FlowControl WIP, trigger on demandImprove
Just-In-TimePull FlowProduce only what is neededImprove
Takt TimeFlowPace production to customer demandMeasure / Improve
HeijunkaFlowLevel production scheduleImprove
KaizenContinuous ImprovementDaily micro-improvementsImprove
PDCAContinuous ImprovementTest and standardize changesAll phases
Gemba WalkContinuous ImprovementObserve and engage on the floorMeasure / Analyze
SMEDChangeoverReduce changeover timesImprove
TPMMaintenanceMaximize equipment uptime (OEE)Control
Poka-YokeQualityPrevent errors at the sourceImprove
JidokaQualityAuto-stop on defect, operator empowermentImprove / Control
Standardized WorkQualityDocument the best known methodControl
5 Whys / RCAAnalysisReach the true root causeAnalyze
Bottleneck AnalysisAnalysisIdentify flow constraintsAnalyze
Spaghetti DiagramAnalysisReveal unnecessary movementAnalyze
📊
Statistical & Advanced Tools
Statistical tools for variability reduction, primarily used in the Analyze and Improve phases. Includes DOE, Taguchi, RSM, TRIZ, and advanced Black Belt methods.
Descriptive Statistics
Histograms, Box Plots, Scatter Plots
Visualize data distribution, outliers, and correlations
Pareto Charts
Prioritizes defects by frequency (80/20 rule)
Process Monitoring
Control Charts (X-bar, R-chart, I-MR)
Detects special causes vs. common variation
Process Capability (Cp, Cpk)
Measures how well a process meets its specifications
Hypothesis Testing
T-tests, Z-tests
Compares means (two groups or sample vs. population)
ANOVA
Compares means across 3 or more groups
Chi-Square
Tests associations between categorical variables
Non-Parametric Tests (Mann-Whitney)
For non-normal data — alternative to classical tests
Regression & Modeling
Simple & Multiple Regression
Predicts Y from X variables and quantifies cause-effect relationships
Confidence Intervals
Quantifies the reliability of estimates and predictions
Design of Experiments (DOE)
Full Factorial DOE
Tests all factor combinations — exhaustive, complete results
Fractional Factorial DOE
Economical subset of full factorial — efficient for many factors
Taguchi Methods
Robust design via orthogonal arrays and signal-to-noise (S/N) ratios to minimize variation
Mixture Designs
For formulations (blends in manufacturing) — optimizes component proportions
Response Surface Methodology (RSM)
Optimizes processes with curved responses — quadratic models, centered designs (CCD, Box-Behnken)
Gage R&R
Validates measurement systems (repeatability and reproducibility)
TRIZ — Theory of Inventive Problem Solving
TRIZ Contradiction Matrix
Resolves trade-offs using 40 inventive principles — ideal in Analyze phase
TRIZ ARIZ Algorithm
Systematic inventive algorithm for breakthrough solutions in Improve phase
TRIZ Contradiction Identification
Identifies contradictions for complex problems as early as Define phase
🔬
Advanced Topics (Black Belt / MBB)
These topics are intended for Black Belt and Master Black Belt levels. They integrate advanced statistics, change management, and strategic leadership skills.
📐
Multivariate Analysis
Black Belt / MBB
  • PCA (Principal Component Analysis): Reduces dimensionality of complex datasets
  • Factor Analysis: Identifies latent factors in data
  • Used to understand complex systems with many variables
⚙️
Reliability Engineering
Black Belt / MBB
  • Weibull Analysis: Models component lifetime distributions
  • Accelerated Life Testing (ALT): Predicts durability through accelerated testing
  • Essential for automotive, aerospace, and electronics industries
🎯
Response Surface Methodology (RSM)
Advanced — Improve
  • Optimizes processes with curved responses (quadratic models)
  • Centered designs: Central Composite Design, Box-Behnken
  • Finds optimal process operating conditions
⚠️
Advanced Risk Management
Black Belt / MBB
  • Advanced FMEA: Design FMEA, Process FMEA with weighted RPN
  • Resource Optimization: Project resource optimization
  • LSS project portfolio management
🔄
Change Management
MBB / Champion
  • Kotter's 8 Steps: 8-step change leadership model
  • ADKAR Model: Awareness, Desire, Knowledge, Ability, Reinforcement
  • Essential for sustainably embedding improvements
💻
Programming & Business Acumen
MBB
  • Python / R for statistics: Automating analyses
  • Business Acumen: Financial literacy, ROI of LSS projects
  • Aligning LSS strategy with business objectives
🚀
KEEPLEAN Game Changer
Hands-On Process Training — 4-Outcome Learning Journey

Your team doesn't just get certified — they build a complete improvement ecosystem during the training itself. Not classroom theory: production-ready tools created on your live processes.

① DMAIC Problem Solving
Engineers master DMAIC on a live process — from problem definition through final optimization. Deliverable: a proven process model ready for production.
② Interactive Simulator
Teams create an interactive simulator replicating the optimized process — a permanent training tool for onboarding new operators.
③ Live KPI Dashboard
Teams develop dynamic dashboards giving operators instant process visibility — catching issues before they become problems.
④ Predictive Regression Model
Teams build regression models that predict process behavior — enabling operators to adjust proactively instead of reacting to problems.
Why it works:   ● ROI Day 1 — tools built during training   ● ISO 17024 — meets international standards   ● Self-sustaining — operators trained on YOUR processes
🧪
Mixture Design
Black Belt / MBB — DOE Advanced

Optimizes product formulations where component proportions must sum to 100% (or 1), such as alloys, foods, chemicals, or plastics — common in injection molding or energy heater blends.

Key Principles: The response depends solely on relative proportions, not total amount. The design space forms a geometric simplex (triangle for 3 components, tetrahedron for 4+). Components cannot exceed their feasible range.

Main Design Types:

  • Simplex-Lattice: Tests vertices (pure components), edges (two-component blends), and uniform blends. Simple for linear/quadratic models.
  • Simplex-Centroid: Adds a center point (equal proportions) to capture curvature effects.
  • Extreme Vertices: Handles real constraints (e.g., min 20% Component A, max 50% B); focuses on boundary points.
  • D-Optimal: Computer-generated for complex constraints; minimizes prediction error across the design space.
📐
Taguchi Methods
Black Belt / MBB — Robust Design

Developed by Genichi Taguchi, these methods aim to design products and processes that are robust to variation and noise factors — minimizing defects without eliminating their causes.

Core Concept: Use orthogonal arrays to efficiently test multiple control factors at multiple levels, then evaluate results using the Signal-to-Noise (S/N) ratio to identify settings that minimize variation.

Key Elements:

  • Orthogonal Arrays (L4, L8, L9, L16…): Structured experiment matrices that reduce the number of runs while maintaining balanced factor coverage.
  • Signal-to-Noise (S/N) Ratio: Measures robustness — Smaller-is-Better, Larger-is-Better, or Nominal-is-Best depending on the quality objective.
  • Control vs. Noise Factors: Control factors are adjustable; noise factors (temperature, humidity, wear) cause variation. Taguchi finds control settings that are insensitive to noise.
  • Parameter Design: Optimizes factor levels to achieve target performance with minimum variation.
  • Tolerance Design: Tightens tolerances only where needed after parameter design, balancing quality and cost.
  • Loss Function: Quantifies quality loss as a quadratic function of deviation from target — any deviation from the ideal causes loss, not just out-of-spec parts.

Typical applications: Injection molding parameter optimization, energy systems, coating processes, electronics reliability — all areas covered by KEEPLEAN simulators.

🔗
Supply Chain Lean Thinking
Black Belt / MBB — End-to-End Flow Program

A structured training program applying Lean principles across the entire supply chain — from supplier to end customer. Participants learn to eliminate waste, create flow, and build pull systems on real supply chain scenarios.

🎯 PROGRAM LEARNING OUTCOMES

① Map the Value Stream
Build current-state and future-state VSMs across procurement, production, and distribution. Quantify waste and identify improvement priorities.
② Design Pull Systems
Implement Kanban loops and JIT replenishment with suppliers. Set supermarket sizing and reorder triggers based on real demand data.
③ Level & Stabilize Flow
Apply Heijunka to smooth demand peaks. Calculate Takt Time and synchronize supplier cadence to production rhythm.
④ Measure & Control
Build live KPI dashboards tracking OTIF, inventory turns, and lead time. Run Kaizen events and Gemba walks to sustain gains.

🛠 TOOLS COVERED IN THIS PROGRAM

VSM · JIT · Kanban · Heijunka · Takt Time · 5S (warehousing) · Supermarkets · Kaizen Events · Gemba Walk · Visual KPI Boards

🗑 8 WASTE TYPES TARGETED (MUDA)

Overproduction · Excess inventory · Waiting · Unnecessary transport · Overprocessing · Excess motion · Defects · Underutilized talent

📦
20–50%
Inventory reduction
Faster
Demand response
🎯
95%+ OTIF
Service level target
💡 KEEPLEAN Integration: Model supplier Kanban flows and VSM scenarios using KEEPLEAN simulators — ideal for injection molding and discrete manufacturing supply chains.
🤝
Soft Skills
Interpersonal and managerial skills are essential for project success beyond statistics. They become critical from Green Belt level upward.
Why Soft Skills? An LSS project can be statistically perfect but fail without team buy-in. Soft skills enable practitioners to mobilize, persuade, and sustain improvements across the organization.
🗣️
Communication

Ability to articulate findings to stakeholders at all levels. Presenting complex data clearly and persuasively. Writing reports and Project Charters effectively.

👥
Leadership & Teamwork

Guides cross-functional teams toward a common goal. Effective delegation, motivating members, facilitating meetings. Critical for Green Belt and above.

🧠
Emotional Intelligence & Empathy

Builds stakeholder buy-in and manages resistance to change. Understands the concerns of operators and management. Essential during Improve and Control phases.

Adaptability & Flexibility

Adjusts to shifting priorities and unexpected findings during a project. Quickly pivots approach when data indicates a new direction.

⚖️
Conflict Resolution & Negotiation

Manages disagreements within the team and with stakeholders. Mediation techniques and win-win solution seeking. Critical during project handover (Control phase).

⏱️
Time Management & Work Ethic

On-time delivery in a part-time project context (Green Belt). Task prioritization, meeting milestones, managing certification tollgates.

🗺️
DMAIC Training Roadmap
Full Green Belt learning path (12–20 weeks part-time). Each phase includes key tools, learning activities, and a tollgate assessment. Includes TRIZ, Taguchi, advanced DOE for Black Belt extensions.
PhaseDurationTools & AdditionsRecommended FormatMilestone / Assessment
Define1–2 weeksSIPOC, Charter, VOC, TRIZ basicsInstructor-led / virtualSigned Charter — Tollgate #1
Measure2–4 weeksProcess Mapping, Gage R&R, Cp/CpkBlended / self-pacedBaseline metrics — Tollgate #2
Analyze3–5 weeksFishbone, ANOVA, Regression, TRIZ MatrixHands-on labsRoot causes verified — Tollgate #3
Improve4–6 weeksDOE, Taguchi, Mixture/RSM, TRIZ ARIZ, FMEASimulators + advanced statsPilots successful — Tollgate #4
Control2–3 weeksControl Charts, SPC, Taguchi S/NGroup reviewControl Plan live — Final Certification

📌 Define — Scope the project

1–2 weeksInstructor-led / VirtualMilestone: Signed Charter

Key Tools

  • SIPOC
  • Project Charter
  • VOC / CTQ
  • Stakeholder Analysis
  • TRIZ (contradiction ID)

Activities

  • Problem statement workshops
  • Charter creation (templates)
  • TRIZ case studies

Assessment

  • Tollgate #1
  • Charter validated by sponsor
  • Scope approved

📏 Measure — Baseline performance

2–4 weeksBlended / Self-pacedMilestone: Baseline metrics

Key Tools

  • Process Mapping
  • Data Collection Plan
  • Gage R&R
  • Basic Stats (Mean, Std Dev)
  • Cp, Cpk

Activities

  • Excel / Minitab exercises
  • Sample data collection and analysis
  • Measurement system validation

Assessment

  • Tollgate #2
  • Documented baseline
  • Gage R&R validated

🔍 Analyze — Identify root causes

3–5 weeksHands-on labsMilestone: Root causes verified

Key Tools

  • Fishbone / 5 Whys
  • Pareto Chart
  • t-test, ANOVA, Chi-Square
  • Simple & Multiple Regression
  • TRIZ Contradiction Matrix

Activities

  • Root cause simulations
  • Statistical testing labs
  • TRIZ case studies

Assessment

  • Tollgate #3
  • Root causes validated by data
  • Hypotheses tested

⚡ Improve — Test & implement solutions

4–6 weeksKEEPLEAN Simulators + Advanced StatsMilestone: Pilots successful

Key Tools

  • Full/Fractional Factorial DOE
  • Taguchi (orthogonal arrays, S/N)
  • Mixture Designs
  • RSM (centered designs)
  • FMEA, Poka-Yoke, VSM, 5S
  • TRIZ ARIZ Algorithm

Activities

  • Minitab DOE/Taguchi/RSM labs
  • Pilots on KEEPLEAN simulators
  • Pilot data analysis

Assessment

  • Tollgate #4
  • Pilot results validated
  • Deployment plan approved

✅ Control — Sustain the gains

2–3 weeksGroup reviewMilestone: Final Certification

Key Tools

  • Control Charts (X-bar, I-MR)
  • Control Plan
  • SPC
  • Standard Work
  • Taguchi S/N Validation

Activities

  • Develop control plans
  • Project handover review
  • Train operational teams

Assessment

  • Final tollgate
  • Green Belt Certification
  • Control Plan live in production