Technology Radar
Google’s Mainframe Assessment Tool helps organizations reverse-engineer applications running on mainframes by analyzing either an entire portfolio or individual systems. At its core, it relies on deterministic language parsers to map call flows and data dependencies across codebases, creating a structural view of how applications interact. On top of this foundation, generative AI features provide summaries, documentation, test case generation and modernization suggestions. This approach aligns with a broader pattern of using GenAI to understand legacy codebases, where strong insights about the system form the foundation for the effective use of AI. While the tool does not yet support all major mainframe technology stacks, it’s evolving rapidly. Our teams have found it helpful for client engagements focused on mainframe application discovery and modernization.