Gen AI powered Mainframe application reverse engineering

Mainframe applications are highly complex, monolithic, and inflexible to adapt to changing business needs. Modernizing such applications is challenging due to lack of expertise and documentation. However, the advent of Generative AI has greatly mitigated this issue by accelerating analysis of legacy code and extraction of business rules. The outputs of the reverse engineering are primarily used as inputs for developing the target state application in the “Re-write” and “Replace” patterns of mainframe modernization dispositions. The documentation and flow charts generated can also be leveraged by current application support team in understanding the applications quickly and performing enhancements and support.

Infosys Live Enterprise Application Development platform leverages Azure AI services for end-to-end modernization of mainframe applications. Platform covers all the key steps of reverse engineering such as inventory analysis, business glossary creation, use case identification and business rules extraction. The inventory analysis covers active component identification, internal and external dependencies, database operations, data lineage and many more.

Infosys Live Enterprise Application Development platform uses Agentic AI Framework and has support for multiple LLMs to generate and classify the business rules automatically. Platform automatically produces current state documentation with various inventory analysis reports and technical insights. For future state transformation, Pltaform produces business requirement documents and user stories.

The solution helps enterprises to accelerate mainframe modernization. It reduces the application reverse engineering effort to great extent which in turn reduces modernization project timeline and helps achieving ROI faster.