The Cloud is a great solution for startups that have no legacy infrastructure, for them it is as simple as subscribing to number of necessary cloud services, writing an app, provisioning some cloud space and their business
Up to 70% of current enterprise applications would benefit from moving to the cloud. This of course differs from company to company, depending on the age of the business, the architecture of currently used applications and technical demands of industry it operates within.
Before any type of cloud migration it is imperative that enterprise applications are identified and categorized, this will enable analysis of costs and efforts needed to move them to the cloud. Before moving critical operations to the cloud, companies should try with less significant applications and from there build a business case for other good candidates.