The Model-View-Controller (MVC) design pattern is a widely-used architectural pattern for developing user interfaces, dividing the application into three interconnected components:
1. Model:
– Represents the application’s data or business logic.
– Handles data manipulation, such as retrieving data from a database or updating records.
– Independent of the user interface (UI).
2. View:
– Represents the UI components that display the data.
– Receives updates from the Model and reflects changes on the screen.
– Focuses only on presenting information, not processing it.
3. Controller:
– Acts as an intermediary between the Model and the View.
– Handles user inputs, processes them (often by modifying the Model), and updates the View accordingly.
– Decouples the Model from direct interaction with the View, providing flexibility and ease of maintenance.
Advantages:
– Separation of concerns: Makes the application easier to maintain and scale.
– Flexibility: Allows changes to one component (e.g., the UI) without affecting the others.
MVC is commonly used in web and desktop applications.