Clean Architecture — Designing Sustainable and Testable Applications

Training objective: Enable experienced developers to master the principles and patterns of Clean Architecture — SOLID, layer separation, dependency inversion, ports and adapters, use cases — to design applications independent of frameworks, testable, maintainable, and scalable, regardless of the technology used. A technology-agnostic red-thread application project (order management system) is developed and refactored progressively throughout the training — from analyzing problems in a tightly coupled monolithic architecture to a complete Clean Architecture implementation with tests — in the participants' preferred programming language.

• Understand the structural issues of traditional architectures (N-tier, coupled MVC)
• Master the 5 SOLID principles and apply them concretely in real-world code
• Understand the 4 layers of Clean Architecture and the dependency rule
• Implement Entities, Use Cases, Ports, and Adapters correctly
• Apply hexagonal architecture (Ports & Adapters) as a concrete implementation
• Write unit tests isolated from external dependencies using dependency inversion
• Refactor existing coupled code toward progressive Clean Architecture
• Position CQRS and DDD as natural extensions of Clean Architecture