Data migration
On This Lesson 4 topics
This lesson is planned. The outline below lists the topics it will cover. The full lesson has not been published yet.
In this lesson
plan data migration through mapping, cleansing, trial loads, validation, and final load.
Planned topics
- Map source fields to target model; record decisions on what is dropped or transformed.
- Cleanse early: duplicates, invalid addresses, old inactive customers (check retention rules).
- Trial loads: run the full migration several times, time it, and validate.
- Validation: counts, checksums, business samples, and reconciliation with finance totals.
- Final load: rehearsed, timed, with a delta strategy for changes since the last trial.
Draft outline details
Demonstration
a plan timeline: mapping, trial 1, trial 2, trial 3 (timed), dress rehearsal, final load, validation, sign-off.
Check your understanding
Why run several trial loads?
Show answer
They expose mapping errors, bad data, and timing before the real cutover.
Practice
Apply this lesson with the module's lab, exercises and quiz.
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