This IASSC Six Sigma Yellow Belt Study Guide lists all key concepts (and links to learn more) for the IASSC Six Sigma Yellow Belt Certification.

IASSC Universally Accepted Lean Six Sigma Body of Knowledge for Yellow Belts

(From IASSC Yellow Belt BOK.)

1.0 Define Phase

1.1 The Basics of Six Sigma
1.1.1 Meanings of Six Sigma
1.1.2 General History of Six Sigma & Continuous Improvement (Also see the History of Lean)
1.1.3 Deliverables of a Lean Six Sigma Project
1.1.4 The Problem Solving Strategy Y = f(x)
1.1.5 Voice of the Customer, Business, and Employee
1.1.6 Six Sigma Roles & Responsibilities

1.2 The Fundamentals of Six Sigma
1.2.1 Defining a Process
1.2.2 Critical to Quality Characteristics (CTQs)
1.2.3 Cost of Poor Quality (COPQ)
1.2.4 Pareto Analysis (80:20 rule) (Also see Pareto chart basics and How to make a Pareto
1.2.5 Basic Six Sigma Metrics (also see Process Performance Metrics and How to calculate Baseline Sigma)
a. including DPU, DPMO, FTY, RTY Cycle Time

1.3 Selecting Lean Six Sigma Projects
1.3.1 Building a Business Case & Project Charter
1.3.2 Developing Project Metrics
1.3.3 Financial Evaluation & Benefits Capture

1.4 The Lean Enterprise
1.4.1 Understanding Lean
1.4.2 The History of Lean
1.4.3 Lean & Six Sigma

1.4.4 The Seven Elements of Waste
a. Overproduction, Correction, Inventory, Motion, Overprocessing, Conveyance, Waiting.
1.4.5 5S
a. Straighten, Shine, Standardize, Self-Discipline, Sort

2.0 Measure Phase

2.1 Process Definition
2.1.1 Cause & Effect / Fishbone Diagrams
2.1.2 Process Mapping, SIPOC, Value Stream Map
2.1.3 X-Y Diagram
2.1.4 Failure Modes & Effects Analysis (FMEA)

2.2 Six Sigma Statistics
2.2.1 Basic Statistics
2.2.2 Descriptive Statistics
2.2.3 Normal Distributions & Normality
2.2.4 Graphical Analysis

2.3 Measurement System Analysis
2.3.1 Precision & Accuracy
2.3.2 Bias, Linearity & Stability
2.3.3 Gage Repeatability & Reproducibility
2.3.4 Variable & Attribute MSA

2.4 Process Capability
2.4.1 Capability Analysis
2.4.2 Concept of Stability
2.4.3 Attribute & Discrete Capability
2.4.4 Monitoring Techniques

3.0 Control Phase

3.1 Lean Controls
3.1.1 Control Methods for 5S
3.1.2 Kanban
3.1.3 Poka-Yoke (Mistake Proofing)

3.2 Six Sigma Control Plans
3.2.1 Cost Benefit Analysis
3.2.2 Elements of the Control Plan
3.2.3 Elements of the Response Plan

Comments (5)


Out of curiosity I did double check with IASSC. Here was their note:

Hello Ted,

Thank you for contacting IASSC. The BoK for the Yellow Belt listed on our website is correct and does not cover the Analyze or Improve sections. Please let me know if you have any additional questions.

IASSC Customer Service

Best, Ted.

I am currently studying for the yellow belt exam, but I don’t see an option to purchase a yellow belt study guide. Is there one? Or is what is provided on the free study guide enough study material to cover the exam?

Hi Ariel,

I don’t have a yellow belt study guide and this time. The materials (free and paid) both are only for green belts and black belts.

But I’ll consider this a vote for me to make a yellow belt program!

Best, Ted.

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