This article outlines key factors to consider when designing a proof of concept (POC) for migrating workloads from a mainframe to the cloud. Historically, mainframes are the backbone of the banking, aviation, and retail industries. Mainframes support complex and mission-critical operations. In pursuit of enhanced scalability, cost efficiency, and technical agility, many organizations are transferring mainframe workloads to the cloud.
https://learn.microsoft.com/en-us/azure/architecture/mainframe/mainframe-proof-of-concept