
14 Essentials of Cloud Computing
web–cloud applications. Word processors like Buzzword and ofce suites
like Google Docs are now available in the cloud as their desktop counter-
parts. All these kinds of trends in providing applications via the cloud are
turning cloud computing into a platform or to act as a platform.
2.3 5-4-3 Principles of Cloud computing
The 5-4-3 principles put forth by NIST describe (a) the ve essential char-
acteristic features that promote cloud computing, (b) the four deployment
models that are used to narrate the cloud computing opportunities for cus-
tomers while looking at architectural models, and (c) the three importa ...