Cause 2 The inaccuracy of basic data

Of course, you can only plan for those process drivers whose presence (workplace) and whose activities to be performed for the supply chain are actually known. If we take the bills of materials and work schedules as the basic data -which we naturally do - then we are familiar with 

Unhappily, bills of materials and production sheets describe less than 20% of all processes necessary to fill a customer order. 

Moreover, the usual depiction of the bills of materials and production sheets has nothing to do with thinking in terms of processes (Fig. 8 page). It involves the Tayloristic thought and actions of your employees. 

Professional supply chain management cannot visualize, plan, and control supply chains with these bills of materials and production sheets. 

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