Elasticity: the inherent scalability of the service provider. The resources can be rapidly provisioned, scaled both up and down very rapidly as they are required.
Flexible billing (Pay as you go): fees can be levied on a subscription basis or can be tied to actual consumption of resources.
Universal/ubiquitous access (Access anywhere, any time): pooled resources are available to anyone authorized to utilize them.
On-demand self-service: individuals can obtain computing capabilities such as server time or network storage on their own.
Location independent RESOURCES POOLING: the user does not know where the computing resources are located.