The hardest part of replacing a legacy system isn't technology—it's historical data migration and switching user habits.
The hardest part of replacing a legacy system isn't technology—it's historical data migration and switching user habits. This article draws on our hands-on experience serving over 3,000 enterprise clients.
For legacy system replacement, we recommend a parallel-run strategy: run old and new systems side by side for one business cycle, and switch only after data reconciliation checks out.
Data migration requires cleaning before migrating—moving ten years of junk data into the new system is the most common cause of failure.
Avoid switching systems during business peak periods: financial systems should avoid month-end and year-end, e-commerce systems should avoid major promotions.
There's no standard answer to digital transformation, but there's one iron rule: get one scenario running and producing results first, then talk about rolling it out across the board.