Suggest an editImprove this articleRefine the answer for “What are the advantages of layered architecture?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)The advantages of **layered architecture**: a clear separation of responsibility between layers - the interface does not interfere with the business logic, and the business logic does not depend on the database, which makes the system clearer and more structured. **Key point:** a clear structure reduces the risk of errors caused by chaotic connections between components, making the system more resilient to change.Shown above the full answer for quick recall.Answer (EN)Image### Advantages of layered architecture 1. **Separation of responsibility.** Each layer plays a strictly defined role - the interface does not interfere with the business logic, and the business logic does not depend on the database. This makes the system clearer and more structured. 2. **Simplified maintenance.** Because of the clear boundaries between layers, changes in one place have minimal effect on the rest. For example, the database can be replaced without touching the application's logic. 3. **Code reuse.** The same layer (for example, the domain logic) can be used by different interfaces - a web application, a mobile client, an API. 4. **Improved testability.** Each layer can be checked separately. For example, the business logic can be tested without launching the interface or connecting a database. 5. **Flexibility and extensibility.** It is easier to add new features or adapt the system to other technologies, because the dependencies between layers are minimal and controlled. 6. **Increased reliability.** A clear structure reduces the risk of errors caused by chaotic connections between components - the system becomes more resilient to change.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.