MVC Architecture – Restaurant Analogy

Model (Chef):

• Manages data and business logic.
• Prepares food (data) as per the order.
• Updates the state (e.g., order ready).

View (Customer):

• Interacts with the final output.
• Orders food and receives it.
• Sees only the presentation, not the process.

Controller (Waiter):

• Acts as a mediator.
• Takes orders from the customer and passes them to the chef.
• Delivers food from the chef to the customer.
• Handles customer requests (e.g., modifications).

Workflow:

1. Customer orders food → Waiter (Controller) takes the order.
2. Waiter passes the order to the Chef (Model).
3. Chef prepares the food and notifies the Waiter when ready.
4. Waiter serves the food to the Customer (View).

What is MVC Architecture?

• MVC (Model-View-Controller) is a design pattern used to organize and separate concerns in software applications.
• It promotes modularity by dividing an application into three interconnected components:
  • Model: Manages data and business logic.
  • View: Handles the user interface (UI) and presentation.
  • Controller: Acts as a mediator, processing user input and updating the Model and View.

Why Use MVC?

• Separation of Concerns: Each component has a distinct responsibility.
• Maintainability: Easier to debug and update individual parts.
• Scalability: Supports large-scale application development.
• Reusability: Components can be reused across different parts of the application.

Components of MVC:

• Model:
  • Represents the data and business rules.
  • Communicates with the database or other data sources.
  • Notifies the View when data changes.