codebase-design

Deep module design creates interfaces with a small footprint but rich internal behavior. This approach provides high leverage to optimize codebase testability and maintainability by hiding complex logic behind simple APIs.

Design codebase interfaces for testability by emphasizing clear interface definitions and strategically placing seams to isolate modules. This improves codebase organization and simplifies testing.

Optimize codebase organization for maintainability by applying deep module design principles. Ensure high leverage and clear interfaces, and place strategic seams to isolate testing effectively.

Seams and adapters improve software architecture testing by providing defined placement points within the codebase. This allows modules to be isolated and tested independently for maintainability.

High leverage module design does not require specific dependencies, as it focuses on providing a shared vocabulary and structural principles for interface design rather than relying on external libraries.

You should not use deep module design when a module requires a large interface footprint relative to its internal behavior, as the approach specifically targets high leverage through small interfaces.