Legacy Modernization
Provincial Government — a 40-Year-Old Mainframe, Modernized.
Citizen-critical student-aid services ran on a mid-1980s COBOL mainframe: 420 green screens, 366,000 lines of code, 25.2 million records, disbursing $98M a year — and the people who understood it were gone.
Citizen-critical student-aid services ran on a mid-1980s COBOL mainframe: 420 green screens, 366,000 lines of code, 25.2 million records, disbursing $98M a year — and the people who understood it were gone. A seven-week discovery reverse-engineered the undocumented calculation engine into a testable model. Delivery rebuilt the system on Azure module by module: every legacy interface intercepted through a new data hub before the core was touched, and each rebuilt module run in parallel against the mainframe with record-level output comparison before cutover. That method is now productized as Chal-AI's Legacy Intelligence and parallel-run validation services.
Delivered and governed by Chal-AI's founder in a prior leadership role. Detailed reference available under NDA.
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Every transformation starts with a conversation.
Whether you are defining your strategy, modernising technology or exploring practical artificial intelligence, we would welcome the opportunity to understand your goals.
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