Stop Duplicating Code! Is "Integration Hell" Just Laziness or a Systemic Architecture Failure?

A software engineer proposes CCDA, a contract-driven architecture that makes neutral contract files the source of truth for full-stack systems.

A generator then creates SDKs, types, validation schemas, and state machines for both client and server, reducing manual sync work.

The approach cuts duplicated validation logic, lowers contract mismatch risk, and helps catch integration issues earlier.

It is positioned as a way to improve delivery speed and reliability in frontend-backend development.