The concept of cloud migration seems relatively easy when looked at on paper. Just move your workloads from existing infrastructures into the cloud, cut costs, and upgrade your technology ecosystem in the process. Easy enough. The reality, however, is that it's one of the most under-appreciated shifts any tech team can face. Having done many cloud migrations with various companies, regardless of size and infrastructure used, the same problems seem to keep recurring not because of a lack of preparation but because the problems aren’t the ones people have been warned of. Here’s an unbiased account of why cloud migrations fail and how each problem has been solved. Underestimating the Complexity of Legacy Systems The first and most common mistake is assuming that existing systems will migrate cleanly. Most businesses running on-premise infrastructure have accumulated years of technical decisions — some well-documented, most not. Applications have undocumented dependencies.…