Six Sigma (6σ) is a systematic and data based approach to solve problem. The objective of Six Sigma is to remove variation and reduce defect from process. Six Sigma is a process improvement tool. Bill Smith American engineer introduced 6 sigma in 1986 while working in Motorola. Six sigma (6σ) process is one in which 99.99966% of process is defect free. i.e. there is very less chance to have a defect in the process. Six sigma is profit making tool for business, i.e. 6σ tool is used to increase quality in process or increase production of process or make delivery of product faster or remove any non value added process, etc. Six Sigma is data based approach and root cause is analysed after statical analysis. Philosophy of 6 sigma is based on DMAIC theroy. Where D is stand for Define, M is stand for Measure, A is stand for Analysis, I is stand for Improvement, C is stand for Control. Any 6 sigma project is solved in Five different phase. Five different phases of 6 Sigma project: 1. Defin
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