A push system is the production or performance of any item or activity performed at required times by a given schedule that has been planned in advance. Many push systems are built mainly to forecast. Push systems can also include issuing material or performing an activity based on a schedule rather than need. Push systems create excess inventory which is one of the 8 forms of waste.
Remember, a push system means that a company produces goods according to a demand forecast. A common manufacturing environment for push systems is a make-to-stock manufacturing environment. These types of production environments are often used to produce goods that have almost no fluctuations in demand. In essence push systems attempt to anticipate future demand using historical data.
Let's look at an example of using a push system. K&K own a bakery. Every morning they forecast how much they were going to sell throughout the day and then they produce their goods. They have tried baking to demand however, people are not willing to wait for their morning muffin after they have ordered it. So they bake their products and then put them out for customers to select. This is a push system.
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