As an internet service, cloud computing allows for the provision and use of IT infrastructure, platforms, and applications. It always provides and bills for the currently needed amount of resources. In this book, the authors provide an overview of cloud computing architecture, its applications, and development. This is the first German-language book on the subject, offering a standardizing explanation of the often differently used terms. No technical background is required for understanding. Cloud computing enables the provision and use of IT infrastructure, platforms, and applications of all kinds as electronically available services on the web. Cloud computing follows the ideas of utility computing, meaning that it always provides and bills for the currently needed amount of resources.