The minimum and recommended specifications for the range of XR HMDs are actually not quite straightforward. To really understand it all, you have to think in two dimensions--on both X and Y axes, if you will. Weâre looking at what a range of PC hardware can support, but also what a range of HMD hardware demands.
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.
Lean is a term used to describe a continuous commitment to improve a manufacturing or business process by preserving value with less effort. Lean Manufacturing is the most familiar name given to Lean Methodology. Lean is also referenced as: Lean Product Development, Lean Operations or Lean Enterprise.The constant in any Lean activity is the discovery of, and removal of waste.ean Product Development (Lean PD) is a term describing the removal of wasteful steps that may exist within the PD process. Success of Lean PD is translated into two measures: 1  Speed to Market. 2  Improved Reliability.