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Six Sigma - Wikipedia
Six Sigma (6σ) is a set of techniques and tools for process improvement. It was introduced by American engineer Bill Smith while working at Motorola in 1986. [1][2] Six Sigma strategies seek to improve manufacturing quality by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes.

What Is Six Sigma? Concept, Steps, Examples, and Certification
Six Sigma is a quality-control methodology that businesses use to significantly reduce defects and improve processes. The model was developed by a scientist at Motorola in the 1980s. Companies...

Basic Six Sigma Principles Explained
Six Sigma uses verifiable data and statistics to make decisions that can help organizations achieve measurable profit gains. It uses data to tangibly improve the quality of products and services, increasing customer satisfaction while reducing costs.

The Council for Six Sigma Certification - Official Industry Standard
The Council for Six Sigma Certification provides Six Sigma accrediting services to more than 165 countries around the world. To learn more about us, we encourage you to review our Accreditation Standards, the required Body of Knowledge, and our Ethical Transparency pages.

Six Sigma Definition - What is Lean Six Sigma? | ASQ
Six Sigma Overview The Six Sigma method provides organizations with the tools they need to improve their business process capabilities. The goal of Six Sigma is to improve customer satisfaction by reducing and eliminating process variation that may lead to defects and/or errors/mistakes.

What is Six Sigma? Principles, Methodologies, and Levels
TL;DR: This guide explains what is Six Sigma, breaks down the DMAIC and DMADV methods, highlights the core principles and techniques for reducing defects and variation, and shows how sigma levels and DPMO track performance and sustain long-term improvements.

What Is Six Sigma? Definition, Benefits & How It Works (2026)
Six Sigma is a quality management strategy that uses data and statistics to reduce variation, eliminate defects, and improve performance. It enables organizations to achieve consistent results and deliver high-quality outcomes by applying a structured improvement process like DMAIC.

iSixSigma: Six Sigma Resources for Six Sigma Quality
Too Many Defects, Too Little Time? How Lean Six Sigma Slashes Rework in Manufacturing Learn how Lean Six Sigma helps manufacturers cut rework, eliminate waste, and boost efficiency through process improvement and more.

Lean Six Sigma Certification | 6 Sigma Training
Receive Lean & Six Sigma Training and Certification via classroom, blended, onsite, online, and live webinar programs. Learn more about our comprehensive and flexible training options at various management levels.

Six Sigma: Complete Guide to Process Excellence & Quality Management
Six Sigma is a disciplined, statistical-based methodology that focuses on eliminating defects by minimizing variability in manufacturing and business processes. The term "sigma" refers to standard deviation, and Six Sigma represents 99.99966% defect-free production.