Just-In-Time (JIT) Production Systems

Short Answer

Just-in-time (JIT) production systems
may lead to increased inventory obsolescence.
have been widely used since the Great Depression of the 1930's.
bring together all the needed materials and parts at the precise moment they are required for each production stage, not before.
keep inventory levels high so deliveries to customers can be made just in time.
increase the number of goods in process and save money by replacing stop-and-go production with smooth movement.