arc42-section-08

Crosscutting concepts in architecture documentation capture patterns like security, observability, persistence, and error handling that span multiple building blocks to ensure system-wide consistency. They align these constraints with quality goals and describe concrete design implications.

You can document cross-cutting security and observability patterns by identifying concepts scoped to two or more components, ensuring they align with your system's quality goals, and describing their concrete architectural design implications to maintain consistency across blocks.

You need to document crosscutting concepts in arc42 when architectural patterns affect multiple building blocks on a system-wide level. This ensures informed decision-making, reduces contradictions across sections, and supports design reviews and governance through coherent documentation.

Yes, this arc42 section aligns cross-block persistence and error handling with quality goals by specifying how each crosscutting concept is scoped to two or more components. It provides guidance to maintain consistency and supports stakeholder-focused design reviews.

The best way to start capturing cross-cutting architectural patterns is to provide answers to the Step 1 questions. This initiates the process of documenting crosscutting concepts, detecting applicable patterns, and maintaining consistency across your system.