Service level is the inventory performance target determined by the management of the enterprise. Generally refers to the percentage of user needs. In the inventory management system, its manifestations are: quantity of supply in the entire cycle / demand of the whole cycle; quantity of supply in the lead time / demand of the lead time; the number of times the customer's order is fully satisfied / the total number of orders that occur The number of replenishment cycles / total replenishment cycles when stock-outs do not occur; the time available for the goods at hand / the total service time, etc.
