Laureani, Alessandro; Antony, Jiju - In: International Journal of Productivity and Performance … 61 (2011) 1, pp. 110-120
interviews and secondary information are used to illustrate the existing variation in certification standards across industries … and organisations. Findings – The high variation in Lean Six Sigma certification standards makes it very difficult to … Sigma certification standards be used in organisations, drawing on the best practices from major companies. …