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LeveLing and heijunka
In this chapter we will address one of the elements of the base of the House of
Toyota: leveling. We will start with the ideal situation, as created within the Toyota
Production System, characterized by high-volume, low-mix production with long
horizons of frozen customer orders that enables a heijunka schedule, then explore
environments where heijunka is not possible, such as high product mix, and make or
engineer to order.
Leveling Value Streams
In general, when you try to apply the Toyota Production System [TPS], the first thing you
have to do is to even out or level the production. Leveling the production schedule may
require some front-loading of shipments [to dealers] or postponing of shipments and you
may have ...