Cloud based or "as-a-service" solutions have been a rising trend for the last years. At a first glance these solutions appear to have a lot of advantages and little disadvantages. However, things are not always as they appear to be. Cloud solutions have specific and cloud-only problems to take into consideration and require a different approach in terms of designing and testing. Many regulations have specific requirements in terms of logging and auditing or responses to data breaches; so are you sure your business process are even allowed to be in the cloud?