1. Describe the difference between a use case and a class diagram. What is the purpose of each? What role do they play in object-oriented-programming design specifically?

2. Create a class diagram that describes an automobile dealership. Your class diagram should include at least 6 classes and show the relationships between the classes.
3. Create a use case that depicts the actors (people and systems) and processes involved in a university system that registers students for classes. Be sure that your use case includes all actors (systems and people) Involved in a university class registration process and show the interactions between actors. At a minimum, you should show the student, the registrar, the online registration system, and accounts receivable.