of or relating to the body: physical exercise. 2. of or relating to that which is material: the physical universe; the physical sciences. 3. noting or pertaining to the properties of matter and energy other than those peculiar to living matter.
By Marios Alexandrou. Lean Development focuses on the creation of change-tolerant software. This methodology embodies the notion of dynamic stability which can be thought of as similar to how Scrum embraces controlled chaos.ob Charette, the originator, writes that the measurable goal of LD is to build software with one-third the human effort, one-third the development hours and one-third the investment as compared to what SEI CMM Level 3 organization would achieve.
Lean manufacturing or lean production, often simply  lean , is a systematic method for the elimination of waste ( Muda ) within a manufacturing system.ean principles are derived from the Japanese manufacturing industry. The term was first coined by John Krafcik in his 1988 article, Triumph of the Lean Production System, based on his master's thesis at the MIT Sloan School of Management.