Dr Taguchi is a Japanese engineer and an international quality consultant who has made breakthrough improvements in product and process quality through the use of statistical design of experiments (SDOE). The Taguchi method became popular in the West in the 1980s as a means to design robust...

QS 9000 is a quality system standard for the automotive industry, developed in the USA in 1994 by Ford, General Motors, Daimler‐Chrysler and the US truck manufacturers. It was developed with the objective of standardising the quality system procedures, responsibilities and processes within an...

Six sigma is a popular approach to drive out variability from processes using powerful statistical tools and techniques. Although originally introduced by Motorola in 1986 as a quality performance measurement, six sigma has evolved into a statistically oriented approach to process and product...

There is no doubt that quality has become a major feature in the survival plan of many organisations today. Statistical process control (SPC) is a powerful technique for monitoring, managing, analysing and improving the process performance through the use of statistical methods. In this paper,...

Six sigma has been considered a business strategy that employs a well‐structured continuous improvement methodology to tackle process variability and drive out waste from the business processes using statistical tools and techniques. This paper first examines the differences and similarities...