Map the migration surface
Inventory the application, data, interfaces, scheduled jobs, reports, user workflows, and owners. Record the business rules and dependencies that cannot break.
Legacy application and data migration
Legacy System Migration Services
Move a legacy application, its data, and the systems that depend on it with a plan your team can test. Tevpro maps dependencies and business rules, prepares the target environment, rehearses the move, and checks that critical workflows work after cutover.
Start with the migration boundary
Know what moves and what must keep working
We begin with the source application and target environment, then trace databases, scheduled jobs, integrations, reports, users, and the business rules behind them. The first working output is a dependency map, migration scope, test plan, and a cutover approach the team can review.
Migration delivery
From dependency map to verified cutover
The work is sequenced around what the system does for the business, not only where it runs.
Prepare the target
Define the target environment and integration changes. Identify what will move, what will stay, and the acceptance criteria for each critical workflow.
Map and test data
Document source-to-target mappings, transformation rules, record counts, and exceptions. Run trial migrations and reconcile the results before cutover.
Rehearse the move
Test integrations, permissions, reporting, and day-to-day operations in the target. Rehearse cutover timing and agree on rollback triggers and owners.
Cut over in controlled steps
Sequence the transition around business constraints. Use phased or parallel operation where appropriate, with a go/no-go decision based on test evidence.
Reconcile and stabilize
Check records, business processes, and connected systems after the move. Track exceptions, transfer operating knowledge, and plan retirement of the old environment only after acceptance.
Data and integration mapping
Move the records and verify the connections
A migration needs more than a data export. We map fields and relationships, test transformations, compare source and target counts, and check the integrations and reports that use those records. The legacy data migration checklist helps your team inventory these dependencies before the first trial run.
Cutover and recovery
Rehearse the cutover before it counts
A cutover plan names the release window, responsible owners, test evidence, go/no-go criteria, and rollback triggers. After the move, reconcile data and critical workflows, log exceptions, and stabilize the new environment before decommissioning the old one.
Start the conversation
Plan your legacy system migration
Tell us what you are moving, what it connects to, and any cutover constraints. We can help scope the dependencies and the first validation steps.
FAQ
Legacy System Migration FAQs
A first assessment maps the source and target, application and data dependencies, critical workflows, test requirements, cutover constraints, and the main unknowns. It gives the team a basis for scope and sequencing, not a promise that every risk is already resolved.