‘Just in time’ (JIT) approach is based on lean manufacturing system which develops to
optimize and improve
manufacturing efficiency by reducing manufacturing lead time through waste elimination and kanban.
It was derived from Toyota Production System as a principle to minimize inventory and improve
throughput [7]. Takt time is used to regulate manufacturing pace on floor [8]. As a result, smooth
material flow and synchronized manufacturing process has established
to increase efficiency and productivity of manufacturing system and expose all wastes at entire
area for improvement.