1. Suppose you are currently considering the purchase of a client/server DBMS. What characteristics should you look for? Why?
2. "Create an ERD based on the Crow's Foot model, using the following requirements.
? An INVOICE is written by a SALESREP. Each sales representative can write many invoices, but each invoice is written by a single sales representative.
? The INVOICE is written for a single CUSTOMER. However, each customer may have many invoices.
? An INVOICE may include many detail lines (LINE), which describe the products bought by the customer.
? The product information is stored in a PRODUCT entity.
? The product's vendor information is found in a VENDOR entity.
NOTE
Note: The ERD must reflect business rules that you are (within reason) free to define. Make sure that your ERD reflects the conditions you require. Finally, make sure that you include the attributes that would permit the model to be successfully implemented. "