Which of the following should IT governance mandate before any transition of data from a legacy system to a new technology platform?

Documented approvals from business process data owners are critical because these individuals possess the authoritative knowledge of their data's importance, context, and quality requirements. Their explicit approval ensures that the business acknowledges and accepts the data conversion plan, aligning the technical process with essential business needs and accountability.

Performing data conversion in a test environment is a technical validation step during execution, but governance mandates focus on formal authorization and accountability from data owners beforehand.

Matching control totals is a technical validation step to ensure data integrity during migration execution, not a primary governance mandate that precedes the transition itself.

A crisis management plan is a broader operational readiness requirement, whereas documented data owner approval is a specific governance requirement for data integrity during transition.