We run old and new side by side until the numbers match, then retire the old piece.
Know what the old system really does
We document what it does, who relies on it and which data matters, including the parts nobody remembers.
- Screens and reports in use
- Hidden rules and calculations
- Data quality and history
- Connections to other tools
Replace in stages
Each stage moves one function, runs in parallel and is checked before the old piece is turned off.
- 1 Map the old system
- 2 Pick the first part
- 3 Build and run side by side
- 4 Switch over
- 5 Retire the old part
History comes with you
Data is migrated, checked and kept, so years of records are not lost.
TodayWith legacy software modernization
✕One risky switchover
✓Staged replacement
✕Knowledge in one person's head
✓Documented system
✕Old data stranded
✓History migrated
The system handles
- Data checks during migration
- Backups
- Testing old against new
Your people decide
- Deciding what to keep
- Training the team
- Confirming the switch
