Mainframe Modernization Strategies and Benefits

This technical report discusses the ongoing modernization of mainframe environments by organizations to leverage various benefits. It outlines the significance of mainframe systems in handling mission-critical workloads while emphasizing the need for integration with broader IT infrastructures. The report identifies different stages of modernization among organizations, ranging from those already implementing changes to others still in the planning phase. It presents key statistics from IDC's 2025 State of the Mainframe Survey, indicating that 98% of mainframe users plan to modernize within five years. The report details various strategies organizations are adopting, including upgrading existing systems, migrating workloads to cloud platforms, and utilizing mainframe-as-a-service options. Additionally, it highlights the challenges faced during modernization, such as cybersecurity risks and compliance requirements. The report also discusses Cognizant's approach to supporting organizations in their modernization efforts through specialized services and partnerships, particularly with IBM, to enhance operational efficiency and reduce costs.