A developer has introduced MIM AA (Module Infrastructure-Module Application Architecture), a new approach to application design that bridges the gap between high-level system architecture and low-level design patterns. The framework challenges traditional Clean and Hexagonal Architectures by focusing on modular software design principles.

The approach divides applications into independent Business-Modules and Infrastructure-Modules, creating self-contained units that encapsulate specific business processes. Business-Modules contain core logic with clear public APIs, while Infrastructure-Modules handle external dependencies like databases, HTTP clients, and message buses. This separation enables better testability and reduces cognitive load for developers.

The architecture emphasizes low coupling, high cohesion, and information hiding - core principles from modular design that have been overshadowed by prescriptive layer-based approaches. By organizing code around processes rather than technical concerns, MIM AA aims to create more maintainable and extensible applications. The framework is particularly suited for microservices, monoliths, CLI apps, and domain-driven design projects where testability and clear boundaries are priorities.