At this year’s JAX conference, Dr. Dirk Krafzig holds a presentation on “Service Ownership – SOA Governance Best Practices” on the SOA Governance Day. Many IT architects have had the experience that large organizations have the tendency to produce “IT silos” in the long run. Melvin Conway formulated this observation in 1968 already in his eponymous law. It became clear that reusable SOA services are not only realised through good design. This presentation describes an important element for a service-orientated organization: service ownership. Service owners are enterprisers in enterprises. They devise, create, sell, finance, look after and explain their services.