Technische Universitat Clausthal
Cloud computing enables IT related services in a more dynamic and scalable way than before - more cost-effective than before due to the economy of scale and of sharing resources. Usually, cloud providers describe their promised behavior - regarding functional and non-functional aspects of the service provision - by way of Service Level Agreements (SLAs). For different providers offering similar functionality, SLAs are often insufficiently claimable and inconsistent with the aspects considered important by customers. Therefore, customers face problems identifying a trustworthy cloud provider based solely on its SLA.