Service orientation is not just a technology concern — it cuts across every layer of the enterprise, from technical infrastructure through applications and information to business services delivered to customers and partners. This 2008 presentation by Graham McLeod examines what it takes for EA frameworks and meta models to provide deep, integrated support for service orientation: covering the logical and physical dimensions of services, the critical role of interfaces, cross-domain traceability, and the notation and enrichment needed to make service architectures governable and meaningful in practice.