Basic Understanding of Architectural Style

1. Monolithic Architecture

A single, unified application where all components (UI, business logic, database access) are tightly integrated.

• Simple to develop and deploy.
• Difficult to scale and maintain as the application grows.
• Suitable for small applications.

2. Layered Architecture (N-Tier)

Organizes software into multiple logical layers such as Presentation, Business Logic, and Data Access.

• Improves the separation of concerns.
• Easier to test and maintain.
• Used in enterprise applications.

3. Microservices Architecture

Breaks an application into small, independent services communicating via APIs.

• Highly scalable.
• Services can be deployed independently.
• Used in large applications like Netflix, Amazon.

4. Event-Driven Architecture

Uses events to trigger and communicate between services asynchronously.

• Enhances responsiveness and scalability.
• Used in real-time applications like IoT and stock trading.

5. Serverless Architecture

Applications run in cloud-managed functions without needing dedicated infrastructure.

• Reduces operational overhead.
• Scales automatically.
• Used in chatbots, image processing.

6. Service-Oriented Architecture (SOA)

Similar to microservices but with larger services often communicating via an enterprise service bus (ESB).

• Promotes reusability and interoperability.
• Used in enterprise integrations.

Choosing the Right Architecture