Production launch is the most important requirement for production with Kanban and to minimize the idle time in terms of manpower, equipment and goods in process. smoothing production is the cornerstone of the Toyota production system.
As previously mentioned, every process goes into the process earlier to take the necessary goods at the time required in the necessary quantities. With that kind of production arrangement, if the next process to take spare parts are fluctuating in terms of time or number, then the previous process have to prepare supplies, equipment, and labor amount needed to adjust to peak variation of the amount requested.