How is the interaction between the principles of Clean Architecture and project structuring through multimodularity implemented?

Clean Architecture and modularity in an Android project are closely related, as both promote separation of concerns and improve code maintainability.

• Clean Architecture suggests dividing the project into layers (e.g., Presentation, Domain, Data), each responsible for its part of logic and independent of other layers' implementation details.

• Modularity allows physically separating these layers into different modules (Gradle modules), which enhances isolation, speeds up build times, and facilitates reuse.

Interaction implementation:

1. Each layer of Clean Architecture becomes a separate module.
2. Modules have clear dependencies: Presentation depends on Domain, Domain depends on Data, but not vice versa.
3. This allows controlling dependencies at the build level, preventing architectural boundary violations.

For example:

• :domain — contains business logic and repository interfaces.
• :data — implements repositories, works with network and database, depends on :domain.
• :presentation — UI layer, depends on :domain.

Such separation improves testability, scalability, and maintainability of the project.