Difference between revisions 483613119 and 483614253 on enwiki

{{merge-to|Cloud computing|discuss=Talk:Cloud computing#Introduction to Cloud computing|date=March 2012}}
{{Introductory article|Cloud computing}}
[[File:Cloud computing.svg|400px|thumb]]
The two words in the phrase ''cloud computing'' have the following interpretations:

* '''Cloud''': As a noun, this is a metaphor for the [[Internet]],<ref name=Metaphor>{{cite web|url=
(contracted; show full)name=IndustryShift>{{cite web|url= http://mictunis.micnetwork.org/Technology/CloudComputing.aspx|title=An Industry Shift Toward Cloud Computing |publisher=Microsoft |date= |accessdate=28 February 2012}}</ref><ref name=CSCorp>{{cite web|url= http://www.csc.com/au/ds/39454/40514-what_is_cloud_computing/|title= What is Cloud Computing? |publisher= Computer Sciences Corporation |date= |accessdate=28 February 2012}}</ref>

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==Typical versus essential characteristics==

⏎
Besides the above essential features, there are several other characteristics that are typical of some types of cloud computing. Also, there are some similar types of computing that can be considered as part of cloud computing, even though they aren’t Internet accessible.⏎
⏎
'''Consumption features'''

The cloud-computing [[Introduction_to_Cloud_computing#Consumption_model |consumption model]] represents characteristics, such as payment, resource-sharing, scaling and access methods, that typically apply only to some examples of cloud computing, because they are optional alternatives rather than being necessary features.<ref name=WhatsNeeded>{{cite web|url= http://viewer.media.bitpipe.com/1103725483_536/1280958977_896/ESG_-_What's_Needed_for_Cloud_Computing.pdf|title= What’s Needed for Cloud Computing? |author=Oltsik, John |date=June 2010|publisher= Enterprise Strategy Group, Inc. |accessdate=28 February 2012}}</ref> For example, no [[Introduction_to_Cloud_computing#Payment_and_pricing |payment method]] can be an essential characteristic of cloud computing, because there are some free services, and because each different payment method is only typical of certain types of commercial service.
 
'''Internet versus network accessibility'''

There are several [[Introduction_to_Cloud_computing#Deployment_models |deployment models]] that make cloud computing available on the Internet in a variety of public or private [[Computer | computer systems]]. However⏎
⏎
Besides these, there are also IT systems that have some of the same typical characteristics and [[Introduction_to_Cloud_computing#Advantages |advantages]] as cloud computing, but that, for security reasons, are accessible only via a private [[Computer network |network]], rather than the Internet. These have been described as “cloud computing-like”,<ref name=GoogleVocab>{{cite web|url= http://sites.google.com/site/cloudcomputingwiki/Home/cloud-computing-vocabulary/|title=Cloud Computing Vocabulary |publisher=Google(contracted; show full)*[[Platform as a service|Platform as a Service]]
*[[Software as a service|Software as a Service]]

=References=
{{Reflist|30em}}

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[[Category:Cloud computing]]