N-Tier Architecture Explained
In this article, we are going to explore what N-Tier architecture is, what it offers for us, how it differs from the model-view-controller pattern, what it provides to us, the benefits of the architecture, and also shortcomings of it.
N-Tier architecture is also called multi-tier architecture since the software is separated processing, data management, and presentation layers are differentiated logically and structurally.
Okay, but you may ask what these layers provide to us?
Separating the layers is a method for differentiating the responsibilities of the software and managing the dependencies accordingly. Each layer has different duties. While higher layers may use services in a lower layer, however, it is not valid for the otherwise situation which means one cannot use the services in higher layers.
Layers are separated both logically and physically that’s the main difference between N-Tier architecture and MVC (model-view-controller) pattern which means different layers are run on different machines (preferably).
