With the promise of seemingly unlimited resources and the flexible pay-as-you-go business model, more and more applications are moving to the cloud. However, to fully utilize the features offered by cloud providers, the existing applications need to be adapted accordingly. To support the developer in this task, different cloud computing patterns have been proposed. Nevertheless, selecting the most appropriate patterns and their configuration is still a major challenge. This is further complicated by the costs usually associated with deploying and testing an application in the cloud.