MAINFRAME MODERNIZATION
Sanciti AI migrates mainframe applications built on COBOL, DB2 and JCL to Java microservices using AI agents for code analysis, conversion, testing and wave planning. A major automotive OEM used Sanciti AI to decommission its mainframe at 50% lower cost than the manual re-platform estimate.
COBOL to Java migrations often stall because business rules in COBOL programs and JCL jobs are undocumented and the original engineers are no longer available. Mainframes also run overnight batch jobs and daytime online transactions on the same system, and both must migrate without disrupting operations.
| Measure | Result for an automotive OEM |
|---|---|
|
Migration cost |
50% lower |
|
Requirements extraction |
60% faster |
|
Time to market |
30% faster for new features |
|
Test coverage |
90%+ automated |
|
Mainframe |
Fully decommissioned, MIPS costs eliminated |
| Area | Manual rewrite | Sanciti AI |
|---|---|---|
|
Business rule discovery |
Interviews and line-by-line code reading |
Extracted from the codebase by RGEN |
|
Test coverage |
Written manually |
Generated from the original logic |
|
Release approach |
Large cutovers |
Waves with automated rollback |
|
Audit trail |
Spread across documents |
Recorded at every step |
Already off the mainframe and running on Java? See Java monolith to microservices migration. For the automotive industry context behind this migration, see legacy modernization for automotive.
FAQS
Sanciti AI supports COBOL, DB2 and JCL, covering both batch processing and online transactions.
TestAI runs functional equivalence tests comparing mainframe outputs with Java outputs for every migrated module throughout the migration.
Yes. Workloads move in waves, and the mainframe continues serving production until each wave is validated and approved.
Sanciti AI runs in a single-tenant private VPC on AWS or Azure, so code stays in the client environment.
Share one COBOL application. We will show what RGEN extracts and how the first migration wave would run.
Full-service framework including:
Generates Requirements, Use cases, from code base.
Generates Automation and Performance scripts.
Code vulnerability assessment & Mitigation.
Production support & maintenance, Ticket analysis & reporting, Log monitoring analysis & reporting.
AI-Powered Legacy Modernization That
Accelerates, Secures, and Scales
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