system-architecture

System architecture design should match real requirements by starting simple and iterating. Capture performance, cost, and risk trade-offs explicitly to ensure robust, maintainable boundaries without unnecessary complexity.

Defining module boundaries requires aligning them to business capabilities. This ensures explicit dependency direction, controlled data flow, and structured failure handling across varying team sizes and project lifespans.

Trade-off documentation captures performance, cost, and risk factors explicitly during system design. This records architectural boundaries and dependency directions to guide iterative refinement as requirements evolve.

Iterative system design scales across software projects of varying sizes. It starts with simple boundaries and evolves architecture as requirements change, preventing overengineering while maintaining robust failure handling.

System architecture fails when boundaries and trade-offs are implicit. Explicitly defining module boundaries, dependency direction, and failure handling allows iterative refinement to adapt to evolving requirements.

Dependency direction must be defined when establishing module boundaries in system architecture. It structures data flow and failure handling, ensuring the design remains maintainable and avoids overengineering.