Friday, June 17, 2011

A Quick Start Guide to Cloud Computing by Dr Mark I Williams

some valuable quotes:

'Cloud computing is a style of computing where
scalable and elastic IT-enabled capabilities are provided
"as a service" to multiple external customers using Internet
technologies.' In simple terms, cloud computing enables
businesses of all sizes to quickly procure and use a wide
range of enterprise-class IT systems on a pay-per-use
basis from anywhere at any time.

"The NIST draft definition goes on to describe these five
essential characteristics (on-demand self-service, broad
network access, resource pooling, rapid elasticity and
measured service), three service models (Software as
a Service – SaaS, Platform as a Service – PaaS and
Infrastructure as a Service – IaaS), and four deployment
models (Private, Community, Public and Hybrid Cloud);"

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