Lean Six Sigma Yellow Belt — Lesson 1: Lean Six Sigma Purpose, Roles, Customer Value, Waste, and DMAIC Overview

Learning Objectives

• Interpret the requirements, principles, roles, and dependencies shaping lean six sigma purpose, roles, customer value, waste, and dmaic overview.
• Apply a practical workflow and create a reviewable improvement opportunity and SIPOC sheet.
• Evaluate the exception where the project problem is framed without customer impact and determine proportionate follow-up.

Detailed Topics

• Lean Six Sigma Purpose applied to the course scenario and expected evidence.
• Roles applied to the course scenario and expected evidence.
• Customer Value applied to the course scenario and expected evidence.
• Waste applied to the course scenario and expected evidence.
• and DMAIC Overview applied to the course scenario and expected evidence.

Instructor Demonstration

The instructor traces a case involving a service operations team reducing delays, rework, errors, and customer handoff problems. The demonstration links decisions to objective evidence, records the result in improvement opportunity and SIPOC sheet, and tests the condition where the project problem is framed without customer impact.

Hands-On Exercise

Complete a controlled exercise covering Lean Six Sigma Purpose, Roles, Customer Value, Waste, and DMAIC Overview. Confirm scope and responsibilities, examine the stated exception, reach a supported conclusion, and preserve the outcome in improvement opportunity and SIPOC sheet.

1. Define the objective, boundaries, stakeholders, criteria, and expected work product.
2. Perform the activity while recording assumptions, observations, evidence, and decisions.
3. Test normal operation, the exception, and an escalation or follow-up condition.
4. Document conclusions, owners, deadlines, verification methods, and review triggers.

Scenario Analysis

• Identify the requirement or control with the strongest influence on the scenario outcome.
• Compare two defensible responses and explain their risk, operational, and evidence trade-offs.
• Decide how the improvement opportunity and SIPOC sheet should be approved, retained, reviewed, and updated.

Troubleshooting Guidance

Start where expected practice and observed evidence first diverge. Separate a missing record from an ineffective process, distinguish unclear ownership from a control failure, and treat “the project problem is framed without customer impact” as a hypothesis until tested against the applicable criteria and intended outcome.

Validation Checklist

• Scope, roles, criteria, stakeholders, dependencies, and intended outcomes are explicit.
• The improvement opportunity and SIPOC sheet connects conclusions to objective, reviewable support.
• Normal operation, the stated exception, escalation, and follow-up were evaluated.
• Owners, due dates, verification methods, review triggers, and improvement actions are clear.

Lesson Outcome

Learners can apply Lean Six Sigma Purpose, Roles, Customer Value, Waste, and DMAIC Overview, explain the reasoning used, and defend the result through improvement opportunity and SIPOC sheet.