Behavior-first,
test-driven
Rewriting the risk equation for mainframe modernization
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Stopgap patches, code conversion, and cloud emulation amplify technical debt. But the pressure to adapt—whether it’s about cost, compliance, or staying competitive—is running into the hard limits of aging but essential systems.
Imogen captures real data flows to create a precisely equivalent, behavioral replica of a complex system in modern code through a clear, iterative, and transparent process. This makes it remarkably easy to make changes and introduce a state of continuous modernization.
The conventional modernization model relies on large teams, a patchwork of vendor tools, some of which use AI, and a sequence of phases — analysis, code transpilation, then a long, uncertain stretch of integration and regression testing. After what are often years of effort, success hinges on a single, high-stakes moment to see if everything actually works. Most of the time, it doesn't.
Instead of focusing on code, Imogen captures how individual workloads actually behave — through real data flows — and rewrites that behavior into modern code. By creating a rapid loop of generation and validation against actual production data as each workload is rewritten, Imogen eliminates the long, uncertain integration phase that has defined — and derailed — conventional modernization efforts.
Rather than applying generative AI directly to code translation, Imogen first builds a precise behavioral specification from the running system, then applies a closed loop of rapid code generation and verification against those specifications. The result is software that is audit-quality, idiomatic, and genuinely ready for what comes next — not just syntactically modern.
While the methodology works for any legacy system, our data capture technology is optimized to automate the modernization process for the following mainframe technologies.
We believe that every company deserves to realize their vision, free of constraints from the past. Our team's technology, and experience can help them move into this evolving version safely, reliably, fearlessly.
