This video explains the concept of layers architecture in asp.net mvc project.
you can see What is Tier and Layers in this video in simple way.
so we will Create 3 tier architecture example in asp.net MVC and c#.
Three tier architecture presentation layer ie your project in this example,
business layer and Data access layer in asp.net c#.
This video explains about layered architecture which is also known as N-tire architecture.
In this session have shown the most commonly used 4 layers in most of the software application architecture in the layered architecture,N-tire architecture,
but the layers can be selected based on the needs of the application or say requirnment based.
1.Presentation layer ie project layer or say web application.
2.service layer.
3.business logic layer.
4.database layer.
In next step we need to add references of each layer to its dependent layer.