Waterfall Model (SDLC)

Monolith vs Microservices

Monolithic Architecture

A monolith refers to a large, single codebase that contains everything a project needs to function. This includes:

• Database (DB)
• Frontend (user interface)
• Backend (business logic)
• Authentication
• Code for additional features like analytics

In a monolithic architecture, all components are tightly integrated and exist within a single repository. While this structure can be simple to start with, it can become harder to maintain as the project grows larger. Updates or changes to one part of the system can affect other components, making the development and deployment process more complex.

Microservice Architecture

In microservice architecture, the application is divided into smaller, independent services, each responsible for a specific feature or functionality. For example, you might have:

• A notification microservice that handles all user notifications
• An authentication microservice that manages user login and security

Each microservice is developed, deployed, and maintained separately, and often by different teams. This allows for greater flexibility, scalability, and ease of maintenance.

In large companies like Uber, there are dedicated teams managing individual microservices. For example: