Definitions of cloud computing services vary from vendor to vendor and customer to customer, which is why it remains a confusing proposition for businesses.

For their part, IT services providers are trying to be more explicit about how cloud services can deliver value, and have started to specify different models and levels of the cloud, based on the function they serve or the service they deliver.

http://www.accountancyage.com/accountancyage/features/2250858/cloud-computing-special-ready

Cloud computing is about to explode, but can the market supply what you need?