ASP.NET - MVC (Model–View–Controller)

MVC is a design pattern that separates an application into three components: Model, View, and Controller. This separation improves maintainability, testability, and scalability.

The Model represents business logic and data. It communicates with databases and enforces application rules. The View is the UI layer that displays data to users, typically using Razor syntax. The Controller handles incoming HTTP requests and coordinates between Model and View.

Unlike Web Forms, MVC does not use ViewState or postbacks. It provides full control over HTML, URLs, and request flow. This makes applications lightweight and SEO-friendly.

MVC supports unit testing because components are loosely coupled. Controllers can be tested independently without rendering UI.

MVC is the backbone of modern ASP.NET development and is widely used in production systems.