Key element in the production batch size reduction, the change over time reduction calls into question mass production.

Stock is not a necessary burden but an absolute threat.

It hides:

• the quality risks,
• the lack of machines reliability,
• every organization dysfunctions.

In Just In Time implementation, the stocks reduction is a true engine to make progress in the production line.

The method SMED allows reducing in a fast way and without any massive investment, the time of change over.