Appeal to emotion or argumentum ad passiones is a logical fallacy characterized by the manipulation of the recipient's emotions in order to win an argument, especially in the absence of factual evidence.ppeal to emotion or argumentum ad passiones is a logical fallacy characterized by the manipulation of the recipient's emotions in order to win an argument, especially in the absence of factual evidence.
Lean manufacturing or lean production, often simply  lean , is a systematic method for the elimination of waste ( Muda ) within a manufacturing system.
Lean manufacturing is underpinned by 5 principles: 1  Specify what creates value from the customers perspective. 2  Identify all the steps along the process chain. 3  Make those processes flow.  Make only what is pulled by the 1  customer. Strive for perfection by continually removing wastes.