Automated Refactoring of a U.S. Department of Defense Mainframe to AWS

The modernization of the component involved a conversion of 1,260,679 lines of COBOL code and 10,078 lines of C code to Java to maintain current application capabilities, Graphical User Interface (GUI), and performance while migrating to an affordable and sustainable x86 RHEL platform. Rather than simply transliterating source COBOL code to target Java code, the tool executes a mature automated conversion and refactoring process by first constructing a comprehensive Intermediate Object Model of the legacy system in an intermediate translation language. This project taught the DoD that automated refactoring projects are a viable approach to modernize major legacy systems, including complex COBOL-based mainframes, to preserve the existing business rules within a cost-effective, open system.

Source: aws.amazon.com