Product demand will always vary with the newly emerging market situations. In the earlier days, the dominating philosophy was that an assembly line would become more efficient only when skilled employees performed repetitive tasks. The logic behind this concept was to make an employee an expert at one task to increase productivity. But this theory has given way to heijunka for the last two decades and performing multiple tasks have become the need of the hour. When the product line has to shift their focus from one product to another nobody wants to lose precious time in this highly competitive world. Since the demand undergoes tremendous fluctuations a manufacturer will have to be better prepared to face the rapidly emerging situations and that is what makes heijunka an endearing concept to a huge number of people.
A competent production or an assembly line should be better prepared with the production in a flowing and constant manner. The variations in the demand should not affect the output in an adverse manner and these types unexpected changes will be handled inside the production line with heijunka system. The fact of the matter is that heijunka can be put into practice in a manufacturing establishment with highly advanced machinery and an assembly line with the capability of producing multiple products.
This lean tool does not confine itself with manufacturing practices only and it can also be applied in areas like project management, paperwork reduction projects, cost saving measures, and similar business related situations. Anyhow, heijunka was created primarily to address the issues of manufacturing and how to handle the shift in demand by sheltering the production line from the fluctuations becomes a reality with this unique concept. It can be said without any doubt that constant output without having any unwanted delay is the ultimate goal of heijunka.