Читать книгу The Official (ISC)2 CCSP CBK Reference - Leslie Fife, Aaron Kraus - Страница 34

The purpose of a reference architecture (RA) is to allow a wide variety of cloud vendors and services to be interoperable. An RA creates a framework or mapping of cloud computing activities and cloud capabilities to allow the services of different vendors to be mapped and potentially work together more seamlessly. An example of this approach is the seven-layer Open Systems Interconnection (OSI) model of networking, which is used to discuss many networking protocols. As companies are engaging in a wide variety of cloud solutions from multiple vendors, interoperability is becoming more important, and the reference architecture helps make that more easily occur.

The National Institute of Standards and Technology (NIST) provides a cloud computing reference architecture in SP 500-292 as do other organizations. Some models, such as NIST are role based. Other RAs, such as the IBM conceptual reference model, are layer based. The NIST RA is intended to be vendor neutral and defines five roles: cloud consumer, cloud provider, cloud auditor, cloud broker, and cloud carrier.