composed-documents-architecture-write

You document architecture changes by generating a comprehensive document covering current architecture analysis, target architecture design, and appendices. This provides clear before-and-after references for integrating new features into existing codebases.

An architecture change document includes current architecture analysis, target architecture design, component diagrams, sequence diagrams for happy path and error flows, and appendices. It uses Mermaid diagrams to visually represent components and data flow.

You create component and sequence diagrams for technical design by using Mermaid syntax within your architecture documentation. This process generates visual representations of data flows and system components automatically as part of the architecture document.

Yes, you need codebase access, requirements analysis, product vision, and domain knowledge to generate architecture documentation. These prerequisites ensure the architecture change documents accurately reflect the existing setup and propose feasible target designs.

Yes, you can use this approach to create before-and-after architecture references. It analyzes the current architecture setup and proposes a new target architecture design, making it suitable for documenting significant backend system changes or feature integrations.

The best way to document error flows in a sequence diagram is to include them alongside the happy path using Mermaid diagrams within the architecture change document. This visual representation ensures clear understanding of both successful and error data flows.