Cloud Migration Case Study for DB Systel

This case study outlines the cloud migration project undertaken by DB Systel, the IT arm of Deutsche Bahn, utilizing Rocket Enterprise Suite. The document details the challenges faced by DB Systel, including the need to modernize outdated systems to enhance efficiency, reduce operational costs, and facilitate digital transformation without disrupting existing freight services. Key issues included the burden of outdated architecture, difficulty in sourcing mainframe IT expertise, and the operational risks associated with system changes. The solution involved migrating mainframe workloads to AWS Cloud, which included a deep analysis to identify dependencies and reduce redundant code. The migration process was designed to ensure that old and new systems could operate in parallel, preventing any disruptions. The results highlighted a significant operational cost reduction of 50% and approximately $4 million in annual savings, along with improved agility in responding to market demands and enhanced talent attraction strategies due to the modernized cloud-based systems.