Ask a systems analyst in a manufacturing company to show you an E-R diagram for a database in that organization that contains bill-of-materials data. Compare that E-R diagram to the one in Figure 8-7....

Ask a systems analyst in a manufacturing company to show you an E-R diagram for a database in that organization that contains bill-of-materials data. Compare that E-R diagram to the one in Figure 8-7. What are the differences between these diagrams?