Inventory planning and control Question:

Times for reordering goods vary dependent on the control system you use and its lead time. In fixed order quantities reorders should be placed when the safety stock is reached. In fixed period systems the reordering is done at set time periods. In just in time systems reordering is based on matching the demand with supply. For just in time a close watch on inventory levels is needed so that reorders are placed before goods are out of stock.