Bangalore: Cloud computing is a technology that allows users and businesses to share and utilize resources, software, and information that is provided to computers and other devices using the internet and central remote servers. Cloud computing helps maintain data and applications. J.C.R. Licklider is considered by many to be the person who brought the idea of cloud computing to the forefront.

Cloud Computing are classified into three types based on the service they provide:

Infrastructure as a Service(IAAS): Infrastructure as a Service is a model in which the service providers owns the equipment of the organization which the organizations use for support operations, including storage, hardware, servers and networking components and are responsible for housing, running and maintaining it. The client typically pays on a per-use basis.

Platform as a service(PAAS): Platform as a service is a model wherein the complete life cycle of building and delivering web applications entirely on the web is supported by providing all the necessary facilities.

Software as a service (SAAS): Software as a service deals more with the application usage by the customers in short it is a software in which applications are hosted by the service providers or sellers of cloud computing who upload the applications and make it available to the customers through a common network mostly preferably the internet.

In addition to the above services companies look out to use online apps, develop cloud apps, or run a more automated internal cloud and hence buyers have been demanding more from the Cloud service providers. As per an article by technologyspectator. com ‘The Open Data Centre Alliance, which boasts 280 members with collective IT spending of over $US100 billion, has unveiled a list of eight models that cloud-based suppliers should take into account before seeking supply contracts’.

These eight usage models fall under four categories Automation, Secure Federation, Transparency and Common Management & Policy and the next few years are likely to be painful period for uprising, exploration, experimentation and undoubtedly explosive creativity for the cloud computing vendors.