COBOL Migration
I migrate legacy COBOL mainframe applications to modern, maintainable C++ software. Whether you need a comprehensive assessment to plan your migration or a full hands-on conversion, I deliver production-ready results backed by 15+ years of C++ expertise.
Choose Your Tier
Assessment & Planning
Full code audit, risk analysis, and migration roadmap for your COBOL codebase
- Full COBOL code audit (programs, copybooks, JCL)
- Complexity and risk assessment report
- Target C++ architecture design
- Phased migration roadmap with milestones
- Data migration strategy (VSAM, flat files, DB2)
- Executive summary with cost-benefit analysis
Full Migration
Complete migration from COBOL to C++ with testing and parallel validation
- Everything in the Assessment & Planning tier
- Module-by-module C++17/20 conversion
- Qt 6 UI integration (if applicable)
- Data migration to PostgreSQL, SQLite, or modern formats
- Output parity testing against original COBOL
- Parallel running and cutover support
- Full source code with CMake build system
- 60 days of bug fixes after go-live
My Process
Discovery & Code Audit
I analyze your COBOL programs, copybooks, JCL, and data stores. You receive a detailed report covering complexity, dependencies, and risk areas.
Architecture & Planning
I design the target C++ architecture, define module boundaries, and create a phased migration plan. You review and approve before any code is written.
Module-by-Module Conversion
I convert COBOL programs to modern C++ in priority order. Each module goes through unit testing and output comparison against the original.
Data Migration & Validation
VSAM, flat files, and DB2 data are migrated to modern formats. Automated validation confirms every record matches the source.
Parallel Running & Go-Live
The new C++ system runs alongside the legacy COBOL environment. Once output parity is confirmed, we cut over. A 60-day support period covers you after launch.