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A logistic function or logistic curve is a common sigmoid curve, given its name in 1844 or 1845 by Pierre Fran?ois Verhulst who studied it in relation to population growth. It can model the "S-shaped" curve (abbreviated S-curve) of growth of some population P. The initial stage of growth is approximately exponential; then, as saturation begins, the growth slows, and at maturity, growth stops.


Logistics is the management of the flow of the goods, information and other resources in a repair cycle between the point of origin and the point of consumption in order to meet the requirements of customers.


Logistics involves the integration of information, transportation, inventory, warehousing, material handling, and packaging, and occasionally security. Logistics is a channel of the supply chain which adds the value of time and place utility. Today the complexity of production logistics can be modeled, analyzed, visualized and optimized by plant simulation software.

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The term logistics comes from the Greek logos, meaning "speech, reason, ratio, rationality, language, phrase", and more specifically from the Greek word logistiki , meaning accounting and financial organization. The word logistics has its origin in the French verb loger to lodge or to quarter. Its original use was to describe the science of movement, supplying & maintenance of military forces in the field. Later on it was used to describe the management of materials flow through an organization, from raw materials through to finished goods.

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