For CTOs: Architecture & Technical Lifecycle
Lifecycle starts with a thin, observable slice rather than a platform rewrite. Discovery freezes the decision rights, data contracts, and fail-closed behavior before any model call goes live. We map systems of record, identity providers, and the exact PII or PHI classes each flow may touch. Only then do we pick gateway options and retrieval stores. Trade-offs include latency budgets, offline needs on the floor, and how strict your change board is.
Build moves through environments that mirror production IAM and network rules. Feature flags gate units and roles. Canary releases hit a single clinic or floor first. Rollback is a config change, not a weekend reverse migration. Governance reviews check audit completeness and model prompts the same way code reviews check adapters.
Decision points include when to keep a rule engine over a model. Prior auth criteria often stay deterministic with models drafting prose only. Knowledge answers use retrieval first so freshness lives in the corpus, not the weights. We document each choice so future teams know why a service exists.
Handoff includes runbooks, on-call charts, and cost dashboards. Your staff owns day-two operations with our support window as needed. We avoid mysterious black boxes that only the original builders can debug. Artifact ownership covers prompts, evaluation sets, and infrastructure definitions so you are never hostage to a closed toolkit.
Post-launch reviews reopen scope only with data. Drift meetings inspect answer quality, cost, and user overrides. If routes across Norfolk and Newport News diverge in quality, we isolate the corpus or routing rules. The lifecycle is continuous without turning into endless greenfield.