Using the information described below, you are to sketch a class diagram. In this diagram, you are to identify the objects (only object names are required), indicate the nature of the object...

Extracted text: Using the information described below, you are to sketch a class diagram. In this diagram, you are to identify the objects (only object names are required), indicate the nature of the object relationship and its cardinality (UML notation). In an online bookstore, a customer can add items (s)he wants to order into a shopping cart. The items that are available for customer to order are books, music CDs and software.