Jim Smith

Defining Cloud Computing

Posted by Jim Smith on November 8, 2011
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The National Institute of Standards and Technology (NIST), an arm of the US Department of Commerce, published a NIST Definition of Cloud Computing.

Cloud computing.
Creative Commons License photo credit: Miran Rijavec

The NIST definition of cloud computing can be broken down into 3 facets: the essential characteristics, the service models and the deployment models.

Essential characteristics:

• On-demand service

• Broad network access

• Pooling of resource

• Elasticity

• Measured service

Service models

• Software as a service (SaaS)

• Platform as a service (PaaS)

• Infrastructure as a service (IaaS)

Deployment models

• Private cloud

• Community cloud

• Public cloud

• Hybrid cloud

The NIST definition does not include a pricing model for cloud computing services since this has nothing to do with the nature of the service. The pricing model may be subscription pricing, a perpetual license, or some other form of pricing.


Republished with author's permission from original post by Jim Smith.

Jim Smith

Jim Smith mentors entrepreneurial start-ups and counsels small to mid sized companies that are looking to expand or are under performing or under capitalized.
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