A product-focused domain groups subdomains that provide capabilities for one product or service. Bringing the relevant teams closer can accelerate change within that product. section 9.3.3
Use the heuristic as a trade-off rather than a universal rule:
- Optimize for faster product change through closer alignment among teams building the same product. section 9.3.3
- Watch for neglected cross-product experience and high duplication when products evolve independently. section 9.3.3
- Adapt the grouping when very large products require capability-focused domains for one part of a product. section 9.3.3
- Revisit boundaries collectively when subdomain groupings prove less effective, especially within the same scope 2 domain. section 9.3.3
The BBC example
The BBC initially used service-focused domains, then introduced horizontal domains after experiencing neglected cross-product concerns and substantial duplication. section 9.3.3
