PECB Six Sigma Yellow Belt study guide
PECB Six Sigma Yellow Belt · Work through your exam, one topic at a time.
The PECB Lean Six Sigma Yellow Belt is an entry-level credential for people who need a working vocabulary of Lean Six Sigma rather than project leadership responsibility. PECB describes the training course as building a foundational understanding of Lean Six Sigma concepts, process thinking, and basic improvement tools, with emphasis on identifying inefficiencies, reducing waste, and supporting data-informed improvement. It suits team members who support or participate in improvement projects, employees in operational, administrative, or support processes, and individuals preparing for higher Lean Six Sigma certification levels. There are no prerequisites to attend the training. Topics on this exam: Principles and foundations of Lean Six Sigma and Lean Six Sigma methodology. The PECB Six Sigma Yellow Belt study guide has 2 sections and about 733 words.
01Principles and Foundations of Lean Six Sigma
Domain 1 covers the principles and foundations of Lean Six Sigma. The exam tests why Lean and Six Sigma are combined, how performance is expressed in sigma-level and DPMO terms, and how customer-focused process thinking and belt roles shape improvement. Lean maximizes customer value by removing waste ( muda ) and improving flow. Its five principles are value, value stream, flow, pull, and perfection; it grew from the Toyota Production System.
384 words, about 2 min02Lean Six Sigma Methodology
Domain 2 covers the Lean Six Sigma methodology. The exam tests the DMAIC phases and their deliverables, when DMADV/DFSS is used, and how Lean tools fit into a data-driven project. DMAIC improves an existing process: Define (charter, VOC, SIPOC, CTQ, scope), Measure (data-collection plan, measurement-system analysis, baseline), Analyze (root causes using Pareto, 5 Whys, cause-and-effect, FMEA), Improve (pilots, mistake-proofing, flow, standard work), Control (control plan, SPC, response plan, handover). Each phase ends with a tollgate: deliverables are reviewed before the next phase.
349 words, about 2 min