First in First Out - Definition
A helpful A-Z glossary listing key Business and IT transformation terms and technical definitions.
Use the search below to begin.
First in First Out
First in First Out (FIFO) is where the material produced by one process is used in the same order by the next process. A FIFO queue is filled by the supplying process and emptied by the customer process; when a FIFO lane gets full, production is stopped until the next (internal) customer has used some of that inventory.