Werk 04 — who carries it
Architecture is only real once it ships. This werk holds the target architecture, the integration surface and the engineering organization, and is measured on what runs rather than on what was specified.
The offer
A target architecture that is actually built — services, APIs and front-end platforms delivered by an engineering organisation with quality gates it respects, without surrendering availability on the way.
Domain decomposition, service boundaries, event contracts and the integration layer between the estate and its partners.
API strategy and gateway, composable front-end platform, and the migration path off coupled monolithic front ends.
SLOs, error budgets, load and resilience testing, and the incident practice that keeps the SLA honest.
Test strategy, CI/CD pipelines, code ownership and the metrics that make delivery throughput visible.
Architecture assessment, target design, risk and cost impact.
Design authority, technical arbitration, standards owned.
Engineering organisation and delivery to the target architecture.
State of the proof
Experiences that prove it
Sub-capabilities and evidence
Publishable figures
Questions
- How is a replatforming kept safe?
- In stages, with availability validated at each cut. The PMU betting platform left the mainframe for AWS while holding a 99.995% target, which is a delivery outcome rather than a slide. A single switchover would have been faster to plan and impossible to defend.
- What is the architectural bias?
- Composable over monolithic, event-driven where state is contended, headless where the front end changes faster than the core. Derichebourg's end-of-life-vehicle platform moved off a monolith onto microservices and conversion rose 18%. legrand.fr was rebuilt on a headless Drupal front office with an Adyen omnichannel payment gateway, run with 30 FTE.
- Does the collective write code?
- It engineers and ships. The mandate is accountable to a system running in production, not to an architecture document handed to a party that did not help shape it.
- At what scale has this been held?
- 250 engineers across five business units at AXA, 120 FTE on the Carrefour replatforming, 30 on Legrand, 15 reorganized into autonomous squads at Satelia. The mandate covers the organization that ships, not only the design it ships to.