Sectieoverzicht
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Introduction
This section builds the core Six Sigma language and measurement mindset Yellow Belts need to support improvement projects. You’ll learn how variation affects performance, how to define defects consistently, and how to translate customer needs into measurable requirements. The focus is on practical concepts that help you collect, interpret, and communicate basic process performance data.
Learning Objectives
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Distinguish common vs. special cause variation and explain why variation drives defects.
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Define defects and opportunities clearly using operational definitions to avoid measurement ambiguity.
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Describe and interpret basic performance measures (yield, DPMO, sigma level) and their practical limitations.
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