3 A B C D E F G H I J K L M N O P Q R S T U V W Y

First In First Out

First In First Out (FIFO) is a strategy used in material handling. In the FIFO model, items that have been ready and available the longest are the first to be used. FIFO, for example, is appropriate when goods are perishable. FIFO is the opposite of Last In First Out (LIFO).