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Data Migration Flashcards

7 cards from real ERP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Data Migration flashcards as text

  1. Which migration approach moves all users and data to the new ERP at a single point in time?

    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.

  2. What is the role of a 'data steward' during an ERP data migration project?

    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.

  3. What is a 'legacy system' in the context of ERP data migration?

    Answer: The existing outdated system being replaced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.

  4. Why is it important to archive historical data that will NOT be migrated into the new ERP?

    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.

  5. In a phased ERP migration, which module is most commonly migrated FIRST?

    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.

  6. What does 'data mapping' mean in ERP migration?

    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.

  7. Which testing activity specifically validates that migrated financial balances are correct in the new ERP?

    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.