5S, 7W, QC, ESS, IE, commonly known as KAIZEN tools, are foundations for productivity improvement. With these basic tools a company can become both effective and efficient. Kaizen means continuous improvement in quality, technology, process, company culture, productivity and leadership. It comes from the Japanese word “Kai” which means “change” or to “correct” and “zen” which means “good”. The word Kaizen means “continuous improvement”.