CSSGB study guide
CSSGB · Work through your exam, one topic at a time.
The ASQ Certified Six Sigma Green Belt (CSSGB) is a professional credential for practitioners who contribute to quality improvement projects, typically working alongside or under the guidance of a Six Sigma Black Belt. ASQ positions it for professionals with at least three years of full-time, paid work experience in areas covered by the CSSGB Body of Knowledge; educational waivers are not granted for this exam. The CSSGB study guide has 6 sections and about 1,930 words.
01Overview: Six Sigma and the Organization
Six Sigma is a metric (3.4 defects per million opportunities, assuming a 1.5-sigma long-term shift, i.e. 99.99966% yield), a methodology (DMAIC for improving existing processes, DFSS/DMADV for designing new ones), and a management system (roles, project selection tied to strategy, tollgate governance).
310 words, about 2 min02Define
Define converts a vague complaint into a bounded, authorized project. Deliverables are the business case, problem statement, goal statement, scope (in and out), team roles, a preliminary milestone schedule, and a high-level process view such as a SIPOC.
321 words, about 2 min03Measure
Measure establishes a trustworthy baseline. Classify data first: continuous versus discrete (attribute), and scale as nominal, ordinal, interval, or ratio.
296 words, about 1 min04Analyze
Analyze proves which Xs actually drive the Y. Core tools are process mapping and value analysis, Pareto charts, fishbone diagrams, 5 Whys, FMEA, multi-vari studies, and inferential statistics.
351 words, about 2 min05Improve
Improve turns verified causes into solutions. Brainstorming and benchmarking generate options; a weighted solution selection matrix scored against impact, cost, risk, and time prevents choosing the first idea.
311 words, about 2 min06Control
Control makes the gain permanent. Deliverables include a control plan, documented standard work, updated procedures, training, a response plan naming who does what when a signal fires, a monitored metric with an owner, and project closure with lessons learned and formal handoff to the process owner.
341 words, about 2 min