Cloud Computing is a term from the IT-sector. It concerns the model, the IT-infrastructures (for example data storage), full service program packages or development environments that are delivered dynamically via internet. They are charged according the pay-as-you-use principle, because only consumed services are the billing services.

The user company doesn’t manage the IT landscape on his own (data centres, data storage, mail-software, development environment as well as specific software as customer relationship management (CRM) software or business intelligence (BI)) but leases those services by external providers.