The NIST Cloud Computing Reference Architecture is a detailed example of complete reference architecture. It includes a high level Reference Model along with details about the Actors, interactions and implementation patterns that are best practices for delivery and consumption of cloud services.
Importance of Reference Models and Reference Architectures to EA and UW
Reference Architectures and Models help align the strategies and roadmaps of existing services and technologies and inform the delivery of new solutions and services. They provide the guardrails on either side of our roadmaps. They help insure that solutions are leveraging the current, best practice, solutions and they inform people of technologies and/or services that are near end-of-life. They help designers and implementers leverage the lessons-learned and knowledge of experts by sharing the vision and designs of the experts through common language.