ERP Data Migration 3 — Questions and Answers
Question 1: Which migration approach moves all users and data to the new ERP at a single point in time?
- Phased rollout
- Big bang cutover (Correct answer)
- Pilot migration
- Rolling migration
Correct answer: Big bang cutover
A big bang cutover switches all users to the new system at once, reducing the duration of dual-system operation but increasing cutover risk.
Question 2: What is the role of a 'data steward' during an ERP data migration project?
- Managing the ERP vendor relationship
- Owning data quality and governance for a specific data domain (Correct answer)
- Writing ETL transformation scripts
- Conducting end-user training sessions
Correct answer: Owning data quality and governance for a specific data domain
Data stewards are responsible for ensuring the accuracy, consistency, and completeness of data within their specific domain throughout the migration process.
Question 3: What is a 'legacy system' in the context of ERP data migration?
- The new ERP being implemented
- The existing outdated system being replaced (Correct answer)
- A backup copy of migrated data
- A third-party integration partner
Correct answer: The existing outdated system being replaced
The legacy system is the existing software being replaced by the new ERP, and it serves as the primary data source during migration.
Question 4: Why is it important to archive historical data that will NOT be migrated into the new ERP?
- To reduce the new ERP's licensing fee
- To ensure compliance and audit trail access after decommissioning the legacy system (Correct answer)
- To speed up the ETL process
- To satisfy vendor SLA requirements
Correct answer: To ensure compliance and audit trail access after decommissioning the legacy system
Regulatory and audit requirements often mandate that historical records remain accessible even after the legacy system is shut down, making archiving critical.
Question 5: In a phased ERP migration, which module is most commonly migrated FIRST?
- Manufacturing execution
- Financial accounting and general ledger (Correct answer)
- Human capital management
- Project management
Correct answer: Financial accounting and general ledger
Financials are typically migrated first because they provide the foundational chart of accounts and cost centers that other modules depend on.
Question 6: What does 'data mapping' mean in ERP migration?
- Creating a geographic map of office locations
- Defining how fields from the source system correspond to fields in the target ERP (Correct answer)
- Documenting network topology for the new server
- Assigning user roles and permissions in the ERP
Correct answer: Defining how fields from the source system correspond to fields in the target ERP
Data mapping documents the relationship between source and target fields, including transformation rules needed when formats or structures differ.
Question 7: Which testing activity specifically validates that migrated financial balances are correct in the new ERP?
- User acceptance testing
- Balance sheet reconciliation testing (Correct answer)
- Regression testing
- Integration testing
Correct answer: Balance sheet reconciliation testing
Balance sheet reconciliation testing compares the financial totals in the new ERP against the legacy system to verify that all balances migrated accurately.
ERP Data Migration 3
Which migration approach moves all users and data to the new ERP at a single point in time?