01 — Architecture & System Design

Manage complexity in software architecture by applying strategies to reduce coupling and cognitive load. This Skill provides guidance on foundational design principles to ensure systems remain understandable, changeable, and resilient as they scale.

Hexagonal and Layered architectural patterns both organize code structurally, but Hexagonal isolates business logic through ports and adapters, whereas Layered organizes components into strict hierarchical tiers. This Skill explores both to guide your architectural decisions.

Use CQRS and Event-Driven architecture when you need to separate read and write operations or manage asynchronous workflows. This Skill explains these common patterns to help you make informed choices for long-term maintainability.

Apply SOLID principles to a new software module by following this Skill's guidance on foundational design principles. It covers SOLID, Composition over Inheritance, and the Dependency Rule to help structure components for maintainability.

Domain-Driven Design (DDD) helps with system design by providing essential concepts to map complex domain logic into software models. This Skill covers DDD to help you make informed architectural decisions and avoid common pitfalls.

Limitations of using architectural patterns include potential over-engineering and increased initial complexity if misapplied. This Skill focuses on making informed architectural decisions and avoiding common pitfalls when structuring components.