What methods can be used to implement the separation of an application into multiple modules?

Dividing an Android application into modules helps improve structure, speed up build times, and simplify maintenance. Main methods:

• Gradle Modular Architecture: creating separate modules (app, library) that can be included as dependencies.
• Using feature modules (Dynamic Feature Modules): allows loading parts of the app on demand.
• Layer separation: for example, separate modules for UI, data, business logic.
• Using libraries: isolating common components into separate libraries.

Example in settings.gradle:

include ':app', ':network', ':database'

Each module has its own build.gradle and can be included in the main module as a dependency.