A Guide for Understanding Cloud Computing
Jim Metzler, Cofounder, Webtorials Editorial/Analyst Division
A Webtorials
State-of-the-Market Report
Published November 2009, Posted November 2009
Abstract:
The hyperbole-to-reality ratio that
currently surrounds cloud computing is the biggest this ratio has been since the
initial development of ATM. The main difference between these two ratios is that
when ATM was first being discussed there were agreed to definitions as to what
was meant by ATM. That is not the case with cloud computing.
This is the first of two
closely-linked reports the goal of which is to reduce the hyperbole-to-reality
ratio that currently surrounds cloud computing and hence enable IT organizations
to rationally plan for its implementation and adoption. In order to achieve that
goal, this report will:
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Describe a set of characteristics
that are typically associated with a cloud computing solution.
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Define what is currently meant by
private, public and hybrid cloud computing solutions and describe how those
definitions are likely to change over time.
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Identify the potential cost
savings and other benefits that are associated with cloud computing.
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Describe the three primary
classes of public cloud computing: Software-as-a-Service,
Infrastructure-as-a-Service, Platform-as-a-Service.
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Provide multiple examples of each
class of public cloud computing, along with representative pricing and
service level agreements. |
