If you are into IT field you might have probably heard this term "cloud computing" several times by now. Its an interesting format and there are lots of definitions and information already available on net on Cloud Computing. The most common ( agreed upon) layers of Cloud Computing are.
SaaS ( Software as a Service )
PaaS ( Platform as a Service )
IaaS ( Infrastructure as a Service )
In my opinion its really "Separation Of Concerns" we are talking about here but at an organizational level. Let me give you an example , if you want to use a particular software for a limited period of time you send a request to people managing the "SaaS" cloud layer of your organization. Licensing issues , installation issues are NOT YOUR CONCERN.You are only concerned with "using" it. Cloud Computing allows companies to outsource their entire IT infrastructure
What do we achieve by this ?
Centralization and Separation of Concern
what really is the benefit here ?
Cost
Now , as soon as We talk about cost we are talking about crossing the geopolitical boundaries. Will it make sense to have your data centers or SaaS support staff in a place where costs are high ?
According to this article "SaaS is predominantly a Business Process Outsourcing trend, Cloud Computing is predominantly an IT operation outsourcing trend. "
As always ,these are just my thoughts and you are free to differ.
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