The general concepts found in this section are: 1  The earth's atmosphere is a very thin layer wrapped around a very large planet. 2  Two gases make up the bulk of the earth's atmosphere: nitrogen (), which comprises 78% of the atmosphere, and oxygen (), which accounts for 21%.
Lean startup is an approach to business development that is based on the principles of lean production, a manufacturing methodology that values a business' ability to change quickly. Download 9 FREE Strategic Planning Templates that your Peers Already Use.
What Does it Mean to be Lean? Lean manufacturing, often simply referred to as âleanâ, is a systematic method for the elimination of waste during the creative and production process. Lean encompasses every element of waste such as overburden and unevenness in workload. It seeks to work from the perspective of the end user who consumes a product or service ensuring the best value.