Here is a step-by-step guide on how to migrate legacy applications to the cloud: 1) Define why you need this change. Clearly describe your business needs and current bottlenecks. Describe your tech and business constraints; 2) Find a software vendor with strong cloud expertise; 3) Engage with the vendor in a short consultancy sprint of 2-6 weeks and see what and how they deliver; 4) Plan and execute the main migration project together with your vendor.