Legacy to Modern Migration: Moving Away from Mainframes and Obsolete Systems is a comprehensive guide for organizations seeking to transform their outdated IT infrastructure into agile, modern ecosystems. Covering every stage of the migration journey-from legacy assessment and business case development to cloud adoption, application reengineering, and post-migration optimization-this book offers practical strategies, real-world insights, and proven frameworks for successful modernization. With a strong focus on technical, operational, and cultural change, it empowers IT leaders, architects, and teams to make informed decisions, mitigate risk, and deliver sustainable value in a rapidly evolving digital landscape.