Your mainframe is probably correct and definitely expensive. We modernize COBOL/CICS/DB2 estates with automated analysis, selective re-platforming, and re-engineering of the pieces that actually change.
- Static analysis of COBOL copybooks, JCL, and CICS flows to recover real business rules
- Re-platform vs re-engineer vs retire decisions per workload, with MIPS cost modeling
- Data liberation: DB2/VSAM → modern stores with bi-directional sync during transition
- Batch-to-event migration for jobs that only exist because 1988 networks were slow