Abstract

Cloud computing is a modern computing concept that combines utility computing, on-demand services, grid computing, and software-as-a-service. It brings business models used to deliver IT capabilities (software, platforms, hardware) as a service request, scalable and elastic. This new trend in computing enables the exposure of IT resources as a service on the Internet with the supply of new mechanisms that allow providers to give users access to a virtually unlimited number of resources. Cloud providers offer billing mechanisms to use these resources based on their consumption.