The ever growing number of application scenarios for IT systems leads to a significant increase in their number and hence to a level of complexity that has grown tremendously in comparison with early IT installations by the mid of the past decade. In numerous attempts to integrate these diverging application stacks, various prominent methods have emerged in the past, most recently the topic of EAI which strives to achieve a consolidated view at diverse application systems. However, the emergence and rise of cloud-based services leads to new challenges to deal with. Usage of offerings from a...