Case Study — Technology Leadership
Architecture Coaching: DDD, Event Sourcing & AI-Ready Systems
"Architecture is a team sport."
Challenge
A domain model that had grown organically for years — every team's understanding of the same core concepts had quietly diverged, and every cross-team change became a negotiation.
Programme design
A full coaching programme, not a one-off diagram exercise: domain-driven design fundamentals, event sourcing where it earned its complexity, and architecture decision records so decisions stayed legible after the workshop ended.
Key concepts
Bounded contexts drawn from how the business actually talks about itself, not how the codebase happened to be split. Shared language before shared code.
Team outcomes
A tech-health score, tracked quarterly across every product area, made the shared-language work legible to people who'd never read a domain model: not "the architecture is better" but a number that moved, area by area.
Before
After
Illustrative before/after domain model — the shape of the change, not literal client detail.
Average tech-health score across seven product areas: 44 → 58
Anonymised, rounded from a real client engagement. Product-area names generalised.
Principles left behind
- Shared language reviewed quarterly, not written once and forgotten.
- Event sourcing only where the audit trail actually earns its cost.
- ADRs as the default, not the exception, for any cross-team decision.
Want your architecture coached, not just diagrammed? Let's talk.
Get in touch