codebase-design

A deep module in software architecture features a small interface with a rich implementation. This design approach maximizes leverage by hiding complexity, ensuring the module remains maintainable and testable.

Design testable module interfaces by utilizing seams, interfaces, and adapters. Focus testing strategies on the module's interface rather than its internal implementation to ensure robust module structure.

The best way to refactor a complex module structure is to apply the Design It Twice approach, exploring multiple interface designs to find the most effective deep module configuration for maintainability.

Yes, you can apply testing strategies to existing code architecture by identifying seams and using adapters. This allows you to test the module interface without altering the underlying implementation.

You need to redesign a module interface when the structure lacks testability or hides insufficient complexity. Analyzing dependencies and exploring alternative designs helps achieve a deep module with rich implementation.