N-Tier Architecture

Short introduction to 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 an N-tier architecture, web developers can create modular applications.

Common layers

In a multilayered architecture the most common used layers are:

  • Presentation layer - the visual part of a web application

  • Application layer - the server-side of a web application

  • Database layer - the persistence layer where information is saved and updated

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:

  • ​React - the popular Javascript framework built by Facebook

  • ​Vue.js - The Progressive JavaScript Framework

  • ​jQuery

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:

  • ​MySql - the popular open-source database engine

  • ​SQLite - the lite version of MySql

  • ​MongoDB - a document-based engine


Common Architectures

In web development the most used architectures are:

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

Single Tier architecture

Sometimes named Full-Stack architecture - read more​

Two Tier architecture