Requirements to consider cloud services
What exactly does mean by cloud computing?
Cloud computing is a service that includes the following five traits:
On-demand self-service
Computing resources on demand and self-service, all you have to do is use a simple interface and you get the processing power, storage and network you need, with no need for human intervention.
Resouce pooling
The provider of those resources has a big pool of them and allocates them to the customers out of that pool, allowing to the provider to get economies of scale by buying in bulk and pass the savings on to the customers. Without the knowledge of the customer the location or care of the physical of the resources.
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Broad network access
Acces from anywhere over the net.
Rapid elasticity
The resources are elastic if you need more resources get more resources quickly as needed and the same if you need less you can scale back.
Measured service
The customer only pay what you use or reserve as they go, if you don't use it you don't pay for it.
This is the easiest way to define what is the cloud services.