The 5 steps of six sigma true believers and practitioners in the six sigma method follow an approach called dmaic which stands for define measure analyze improve and control. Six sigma relies heavily on data analysis and statistical measurement but what really makes six sigma work is the people who practice it to help coordinate the efforts of six sigma practitioners and give them the training and support they need six sigma uses a belt system the six sigma belt system uses a ranking structure similar to the one used in martial arts disciplines this belt . Certified six sigma practitioners can make statistically proven inferences about a particular problem and get quicker approvals from their management and buy ins from other stakeholders brief history on six sigma general electric ge was one of the most dominant organizations in the 20 th and 21 st century that had imbibed six sigma in their dna jack welch who was the companys most . Although what is six sigma uses various methods to discover deviations and solve problems the dmaic is the standard methodology used by six sigma practitioners six sigma uses a data driven management process used for optimizing and improving business processes the underlying framework is a strong customer focus and robust use of data and statistics to conclude. Lean six sigma training courses combining both lean and six sigma methodologies to create one of the most powerful certifications in business improvement the knowledge academy provide lean six sigma green yellow and black belt certifications delivered in classroom in house virtual and online
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