Layered Architecture vs. Hexagonal Architecture
This decision page will help you decide which architectural style is best suited for your backend application.
Answer a few questions → Get a clear recommendation.
Options you can choose from:
Layered Architecture
The application is divided into layers (e.g., Controller → Service → Repository). Dependencies flow from top to bottom, and the architecture is simple and easy to understand.
Hexagonal Architecture
Business logic is at the center of the application and is kept independent of the database, APIs, and other external systems. Those external systems are connected through well-defined interfaces (also known as Ports and Adapters).
Answer a few simple questions below. 👇
Based on your answers, you will receive specific recommendations that you can click on to view in detail.
Decision questions
Answer honestly according to the current needs of the project.
1. What is the size and complexity of the domain?
2. How important is it to keep your business rules separate from the database and external systems?
3. How often do you expect changes to the database, API, or integration points?
4. What is your team's size and experience level?
5. How important is it to test your business logic independently?
6. Is the application a long-term product?
Result
Based on your answers, see the recommended solution below. 👇
⚠️ These architectures are not black and white. A very common and reasonable approach is:
Start with a simple layered architecture and gradually move towards hexagonal principles where it makes sense.
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