Monolithic Architecture

An example of a monolithic architecture is a traditional three-tier web application. This type of application typically consists of three layers: a presentation layer (e.g. a web front-end), an application layer (e.g. a server-side application), and a data access layer (e.g. a database).

In a monolithic architecture, all these three layers are tightly coupled together, and the entire application is deployed as a single executable. The presentation layer communicates directly with the application layer, which in turn communicates directly with the data access layer.

A simple example of a monolithic architecture could be a web application that allows users to create and manage a to-do list. The front end of the application, which is written in HTML, CSS, and JavaScript, provides the user interface and handles user input. The server-side application, which is written in a language like Java or C#, handles the business logic and communicates with the database to retrieve and update data. The database, which is typically a relational database like MySQL or PostgreSQL, stores the data.

The monolithic architecture is simple to develop and maintain, but as the application grows, it can become difficult to scale and test. Additionally, it can be challenging to update or replace individual components of the system without affecting the entire application.