Carrier
Part Five · Delivery and Governance
Chapter 201 min read

Enterprise Delivery Workflows

Enterprise delivery is not just a sequence of commands. It is a control system for changing software safely. Carrier fits well into delivery workflows because important service artifacts can be generated and checked from source. This allows architecture governance to become part of CI/CD rather than a separate manual ceremony.

CI/CD Patterns

A mature pipeline can compare generated artifacts against the previous baseline: OpenAPI diff for API changes, manifest diff for route, model, type, and policy changes, migration diff for schema changes, policy coverage checks for protected data, and import graph checks for boundary violations. This turns Carrier's structured source into actionable review evidence.

Review Gates

Review gates should match risk. Not every change needs an architecture board. Good review gates are specific: API contract changes require API owner review, breaking changes require consumer migration plans, sensitive model changes require data governance review, policy changes require security review, schema migrations require database or platform review, new external clients require integration and security review.

Schema Migration Approval

Schema migration approval should focus on operational safety and data meaning. A strong enterprise pattern is expand-and-contract: expand the schema in a backward-compatible way, deploy code that can use the new structure, backfill or migrate data safely, switch reads and writes, and contract the old schema after consumers are gone. This pattern reduces deployment risk and supports zero-downtime change.

API Change Management

API change management protects consumers. Carrier-generated OpenAPI gives teams a concrete artifact to review. When breaking changes are unavoidable, teams should use a managed process: introduce the replacement contract, publish migration guidance, notify consumers, monitor adoption, deprecate the old contract, and remove it after the agreed window.

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