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six sigma is a set of methods and tools for process improvement. developed in 1986, six sigma has become a global phenomenon with companies around the world. companies and individuals are using six sigma methodologies to improve operational efficiencies. the lean method is like six sigma. it stresses on greatest efficiency in all characteristics of operations. six sigma emphasizes more on eliminating errors within processes. the lean strategy focuses on identifying needless steps that consume effort and resources. these two methodologies offer relevant training which is in high demand across industries. these are applicable to manufacturing, finance, healthcare, it, and more. major benefits of the lean six sigma strategy includes customer satisfaction and cost reduction. it leads to revenue growth and productivity improvements.