N Tier (Multi-Tier Architecture)

Multi-tier architecture (often referred to as n-tier architecture) or multilayered architecture is a client–server architecture in which presentation, application processing, and data management functions are physically separated. Using a N-tier architecture, web developers can create modular applications.

Common layers

In a multilayered architecture the most common used layers are:

Presentation layer

This layer handles the user interaction. This part of the application is usually built in HTML and Javascript in various technologies and frameworks:

Application layer

Represents the server side of the application and can be developed in many programming languages:

Database layer

The majority of web apps requires a type of storage to save the relevant data:

Common Architectures

In web development the most used architectures are:

Single Tier architecture

The web application is served only once by the server, and runs entirely on the client side - read more

Single Tier architecture

Two Tier architecture

Sometimes named Full-Stack architecture - read more

Two Tier architecture