The following figure is a UML diagram showing the relationship between the Car, RV, and Truck classes.

(Explanation)

• Car Class:
• Attributes: make, model, year
• Methods: __init__(make, model, year), print_info()
• RV Class (inherits from Car):
• Additional Attribute: rv_type
• Methods: __init__(make, model, year, rv_type), print_info()
• Truck Class (inherits from Car):
• Additional Attribute: capacity
• Methods: __init__(make, model, year, capacity), print_info()

This class diagram illustrates the inheritance relationship and the attributes and methods of each class.

Uses of Class Diagrams:

• Visualizing System Architecture:

• • Provide a visual representation of the system’s structure, making it easier to understand and communicate the design.

• Documentation:

• • Serve as documentation for the system, helping new developers understand the codebase and the relationships between different classes.

• Design and Development:

• • Used in the design phase to plan out the structure of the system before coding begins.
  • Helps in identifying and defining relationships, dependencies, and responsibilities of classes.

• Refactoring:

• • Aid in refactoring efforts by providing a clear view of the system’s architecture, making it easier to identify areas that need improvement or optimization.

• Collaboration:

• • Facilitate better communication among team members, ensuring that everyone has a shared understanding of the system’s structure.