4. Discuss Six Sigma and its processes. Why has its use increased substantially? Six sigma is business improvement methodology that focuses organization on understanding and managing customer requirements, aligning key business processes to achieve those requirements, utilizing rigorous data analysis to understand and ultimately minimize variation in those processes, and driving rapid and sustainable improvements to business processes. The process of siX sigma is DMAIC (definemeasureanalyzeimprove control) which is to outline the steps that should be followed to improve an existing business process. The second process of the six sigma is DMADV (defineMeasureAnalyzedesignverify) which is the process that outlines the steps needed to completely create new business processes or products