How do you design a multi-module dependency graph in Android for large teams?

Design clear module boundaries with unidirectional dependencies and shared contracts.

Large Android apps use multi-module architecture to isolate features, reduce build times, and enable parallel development. A well-designed dependency graph ensures modules depend only on abstractions (interfaces) and not concrete implementations. This reduces coupling and avoids circular dependencies. Typically, you create core modules (network, database), feature modules, and app module that ties everything together.