Design Software Architecture

Decide boundaries from measurable quality scenarios and the existing system, then enforce them with tests and checks. The worked example is assets/examples/orders/: a domain module, an OrderStore port, and memory, SQLite, and HTTP adapters. assets/examples/verify.sh runs the contract tests for both stores, idempotent retries, RFC 9457 errors, the layer rules plus a planted violation, and LSP framing.

Workflow