sigma

sigma

The Operation that I like to write about is Lean Six Sigma (LSS). I read about it but never really understood its sufficient role. I thought if I wrote an essay about LSS then I could get a better knowledge and understanding. This article is about a little city in Texas that I have visited several times because my grandson was the Home Coming King at Trinity Valley Community College (TVCC)’. And my Granddaughter just moved there to attend college.
In 2008, Susan Guthrie was the communications manager of the City of Tyler, Texas, (current interim city manager) and a General Electric-trained Green Belt. She approached the assistant city manager at the time, Mark McDaniel, with the idea of implementing Lean Six Sigma (LSS) in the City. Guthrie recalled, “The City’s culture of continuous improvement was ripe for the implementation of a more structured methodology like Lean Six Sigma. Six Sigma is a set of techniques and tools for process improvement. It was developed by Motorola in 1986.[1] [2] Jack Welch made it central to his business strategy at General Electric in 1995.[3] Today, it is used in many industrial sectors.[4]
Six Sigma seeks to improve the quality of process outputs by identifying and removing the causes of defects (errors) and minimizing variability in manufacturing and business processes. It uses a set of quality management methods, mainly empirical, statistical methods, and creates a special infrastructure of people within the organization ("Champions", "Black Belts", "Green Belts", "Yellow Belts", etc.) who are experts in these methods. Each Six Sigma project carried out within an organization follows a defined sequence of steps and has quantified value targets, for example: reduce process cycle time, reduce pollution, reduce costs, increase customer satisfaction, and increase profits.
In October 2009, 12 individuals from departments across the City began Green Belt (GB) training. These employees attended four weeks of half-day training,...

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