Comparing Lean Management Principles and Evolutionary Design in Nature

Evolutionary design is defined as a gradual process in which something changes into a different and usually more complex or better form. This process is apparent in nature where it is evolving towards the optimum solution. Lean is defined as a philosophy that aims at eliminating waste in production processes without compromising value. The two concepts appear in the literature as independent with little attempts to study a possible relation between them. The purpose of this paper is to explore synergies between the two seemingly distinct systems. This is performed by studying each notion on its own through breaking it down to its dynamic functional systems, and comparing the functions of each against one another. Findings reveal that the development of lean since its inception is comparable to the natural mechanisms of evolutionary design in nature. Findings suggest that lean is the natural course of evolution of construction management systems towards more optimal systems. Constructal Law provides us with a perspective about the concept of evolution and the direction of these evolutionary changes with time. The continuous evolution of everything is never out of control. Plotting the history of the covered territory against time shows an S-shaped curve. Every spreading flow has an S-shaped history of growth. It starts with an initial slow growth, followed by a much faster growth and a slow growth again.