Lean Six Sigma Yellow Belt

Operational Auditing and Quality Assurance October 25, 2025
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Introduction

The Lean Six Sigma Yellow Belt certification provides an introductory, foundational understanding of the Lean Six Sigma methodology. It is designed for team members who will participate in process improvement projects under the direction of a Green or Black Belt. This course focuses on the core concepts of process variation, waste reduction (Lean), and the structure of the DMAIC (Define, Measure, Analyze, Improve, Control) framework. Participants will learn how to speak the Lean Six Sigma language, contribute effectively to data collection, and support successful process improvement initiatives within their organization.

Objectives

Upon completion of this course, participants will be able to:

  • Understand the history, purpose, and benefits of the Lean Six Sigma methodology.
  • Describe the roles and responsibilities within a Lean Six Sigma project team.
  • Identify the eight types of waste (Muda) and non-value-added activities (NVA).
  • Explain the five phases of the DMAIC problem-solving model.
  • Contribute effectively to process definition, mapping, and data collection.
  • Apply basic Lean tools, such as 5S and Visual Management, in their workplace.
  • Assist in the implementation of process control and monitoring plans.
  • Recognize potential improvement opportunities within their daily work.

Target Audience

  • Team members and subject matter experts involved in improvement projects.
  • Entry-level employees and new hires seeking process improvement awareness.
  • Personnel in supporting functions (e.g., HR, Finance, IT).
  • Supervisors and managers who oversee Yellow Belt staff.
  • Anyone interested in a foundational knowledge of Lean Six Sigma.
  • Employees who need to understand quality data and metrics.

Methodology

  • Group Activities (Waste Walks and 5S simulation).
  • Individual Exercises (SIPOC creation and 5 Whys application).
  • Discussions on process variation and customer impact.
  • Short Quizzes to reinforce core concepts.

Personal Impact

  • Gain a recognized, foundational certification in process improvement.
  • Develop a systematic approach to recognizing process waste and inefficiency.
  • Improve ability to contribute meaningfully to improvement projects.
  • Enhance communication with Green/Black Belts using common LSS terminology.
  • Increase confidence in using basic problem-solving tools.
  • Become an advocate for quality and efficiency in the workplace.

Organizational Impact

  • Establish a widespread, common language for process improvement.
  • Increased employee engagement in identifying and reporting process issues.
  • Better utilization of Green and Black Belt resources.
  • Faster and more effective implementation of small-scale improvements.
  • Creation of a more robust data-collection and monitoring culture.
  • Direct contribution to cost savings and increased efficiency.

Course Outline

Unit 1: Introduction to Lean Six Sigma and Core Concepts

Section 1.1: Methodology Overview
  • History and evolution of Lean and Six Sigma.
  • Defining quality, variation, and the concept of 'sigma level'.
  • Understanding the integration of Lean (speed) and Six Sigma (quality).
  • The importance of the Customer (VoC) and CTQs.
Section 1.2: The Lean Perspective (Waste Identification)
  • Identifying the eight wastes (DOWNTIME acronym).
  • Distinguishing between Value-Added (VA) and Non-Value-Added (NVA) work.
  • Introduction to Value Stream Mapping (VSM) concepts.
  • Basic Lean tools: 5S and Visual Management.

Unit 2: The Define Phase

Section 2.1: Project Initiation
  • Understanding the project charter and its key elements.
  • Defining the problem, objective, and scope of a project.
  • Identifying and defining the Process Owner and stakeholders.
  • Introduction to the SIPOC diagram for process mapping.

Unit 3: The Measure Phase

Section 3.1: Data Collection Fundamentals
  • The importance of accurate data collection and measurement.
  • Introduction to basic descriptive statistics (mean, median, range).
  • Understanding different types of data (continuous vs. discrete).
  • Yellow Belt role in supporting data collection plans and sampling.

Unit 4: The Analyze Phase (Basic) and The Improve Phase (Support)

Section 4.1: Elementary Analysis and Solution Support
  • Basic root cause analysis concepts (e.g., 5 Whys).
  • Elementary process flow analysis.
  • Brainstorming and prioritizing potential solutions.
  • Yellow Belt role in executing the chosen improvements.

Unit 5: The Control Phase and Project Sustainability

Section 5.1: Sustaining Gains
  • The purpose of the Control Phase in maintaining improvements.
  • Introduction to basic control charts and process monitoring.
  • Documenting standard work and training.
  • Handover and closing the DMAIC project.

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