Lean Manufacturing

Manufacturing is where the lean movement originated from. For their MIT research in the late 1980s (which resulted in the 1990 seminal book The Machine the Changed the World), Jim Womack and Dan Jones identified a set of principles and techniques that made Japanese carmakers far more productive than their Western competitors.

The superiority of the Toyota Production System is now a recognized fact (Toyota has been profitable every year but one, for half a century), which means that today most manufacturing organizations around the world practice lean manufacturing thinking to some extent. The prevalence of this alternative way of thinking and managing in the manufacturing sector often generates confusion in other industries, in which people’s first reaction to improvement attempts is the now proverbial “We don’t make cars. Lean is a manufacturing thing.”

When applied to manufacturing, lean tools like heijunka, SMED or Kanban cards allow for the optimization of production processes and the systematic elimination of waste (in its three incarnations of muda, muri and mura – respectively, non-value-adding work, overburden and unevenness). These happen by implementing the fundamental lean principles of pull and flow. However, it has now been proved that the principles characterizing lean manufacturing are universally applicable. They work in any sector and they apply to any kind of work – even though at times they require some adjustment.

An eye for improvement

INTERVIEW – At last month’s International Lean Summit in Hungary, our editor sat down with the manager of a CooperVision site that is gradually converting its operations to make them leaner.

Our hoshin journey

FEATURE – This Siemens Group-owned medium-sized manufacturer of electrical low-voltage devices has been experimenting with hoshin kanri. In this article, they share their experience and lessons learned.

The way to radical lean

FEATURE – Reflecting on Nomura-san’s recently published book on radical quality improvement, the author encourages us to embrace the spirit of “Dantotsu” to meet the challenges we face as a society.

Pull: a way forward for supply chains

FEATURE – The release of Christoph Roser’s new book All About Pull inspires John Shook to discuss the origins and true meaning of “pull” and why it is incorrect to blame JIT for the shortcomings of global supply chains.