Do such branch models really exist? Let us take as an example the company ABB Turbo Systems (www.abb.com/turbocharging) near Zurich, Switzerland. ABB produces turbo-chargers for ship motors, each unit according to customer order. A turbo charger is de facto a machine with high value-added. ABB produces many production structure levels in-house. What we find is that the application of a unique production type or a unique concept for planning & control would lead to problems in many domains of the enterprise operations: