Introduction to MVC-4 Architecture

Model: The business entity on which the overall application operates. Many applications use a persistent storage mechanism (such as a database) to store data. MVC does not specifically mention the data access layer because it is understood to be encapsulated by the Model.

View: The user interface that renders the model into a form of interaction.

Controller: Handles a request from a view and updates the model that results a change in Model’s state.

To implement MVC in .NET we need mainly three classes (View, Controller and the Model).

MVC Architecture:

  The choice of MVC comes when we go for a solution where separation of concerns, ease of maintainability and extensibility of an application matters a lot. As per the architecture given below, we can see the request-response flow of a MVC application.

The architecture is self explanatory in itself. Browser as usual sends a request to IIS,IIS searches for the route defined in MVC application and passes request to the controller as per route, the controller communicates with model and passes the populated model(entity) to View(front end), Views are populated with model properties, and are rendered on the browser, passing the response to browser through IIS via controllers which invoked the particular View.