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.
Just-In-Time (Left Pillar). Lean Manufacturing is driven by the pull of the customer's order, where production is ideally only initiated when orders are received from customers. The concept of Just-In-Time (JIT), is fundamental to Lean Manufacturing, and will potetially help to reduce a lot of waste.urthermore, Lean Manufacturing aims at supplying these goods and services with minimum waste, where waste in production is reduced through continuous improvements of the production processes.