As the basis for digitalisation, cloud computing provides companies with IT infrastructure, such as storage space, processing power or applications, as a flexible service. The cloud comprises the entire IT spectrum and includes Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). How can companies and individuals benefit from the cloud, and what does it offer them? Examples, real-world reports, background information and checklists on the cloud transformation.