What are the key principles underlying the MVC architecture?

The MVC (Model-View-Controller) architecture divides an application into three main components:

• Model — responsible for data and business logic. It processes information and interacts with the database.
• View — responsible for displaying data to the user. This is the interface the user sees.
• Controller — acts as an intermediary between the Model and the View. It handles user input, calls model methods, and decides which view to display.

Main principles:

• Separation of concerns for easier maintenance and scalability.
• Ensuring interface independence from business logic.
• Increasing code reusability.

Example: a user clicks a button (View), the controller processes the event, updates the model, and then the View updates with the new data.