Go beyond 6 Sigma in Safety
Six Sigma since it’s originally developed by Motorolla at the end of 1986 and popularly introduced by General Electric in the mid of 1990 has helped many companies to increase it’s competitive advantage especially as cost leadership strategy. Billion US Dollar has been saved and contribute to higher profit of a lot of companies world wide. But the ultimate question is achieving 6 Sigma enough? Six Sigma process level guarantee process to be 99.99966% defect free or it’s only allowed the process to produce maximum 3.4 defect per 1 million product. For manufacture process, achieve 6 sigma process level is very outstanding achievement and could deliver it to be top world class manufacture, but for safety achieving 6 sigma is never enough. Let’s say in aviation industry, if it’s allowed for the jet machine to have failure 3.4 hour for every 1 million flight hour maybe it’s good number for some reason. But imagine if the machine is failure during the plane is on the 35k-45k above sea ...