“& on !”: This is a product with divergent product structure at lower structure levels, and convergent product structure at higher structure levels. The (lower) chemical level of pharmaceutical products, for example, has a divergent product structure, while the (higher) pharmaceutical level has a convergent structure. Other ex-amples are products made from sheet metals. Many semifinished goods arise simultaneously from the sheet metal through pressing or laser cutting, and they are then used for various end products.