Apply change-management, rollback and release practices

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Explain the purpose of change management in reducing operational risk and preserving service availability.
Document a change request with business justification, scope, affected systems, risk assessment, testing results, implementation steps and approval status.
Apply scheduling practices such as maintenance windows, user notification and blackout periods when planning changes.

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Differentiate rollback, backout and recovery planning, and choose appropriate procedures if a change fails or produces unintended results.

Compare release practices such as pilot, phased, maintenance-window and emergency changes, and evaluate when each is appropriate.

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