Lesson 07 of 7 · Planning the move
From laptop to lake, in order.
Last lesson. Let's move the whole kit, check it landed, and keep a way back.
The whole move, in order
Eight steps from laptop to lake. Tap them in order.
Start with the first step.
The numbers don't quite match
You the new model against the old one. Tap each check.
Tap a check
Three checks
Two pass, one doesn't. Or does it?
Rows match, but one commodity has split in two and the total is off. What's the likely cause?
Another page shows world supply three times too high. Rows match. What's wrong?
What would have prevented it?
Three things that went wrong in someone else's move. Pick the step that would have caught each one.
Case 1
A week after go-live, a total is wrong and there's no old model left to compare with.
Case 2
The dataflow failed overnight, and the report quietly showed yesterday's numbers all day.
Case 3
A calculated column vanished from the model during the migration and a visual broke.
Three things to keep
- 1Move in order: capacity, Git, bronze, silver and gold, spec and model, validate, reconcile, deploy.
- 2 against the old model. Mismatches usually mean a step didn't make the move.
- 3Keep the old model until the new one has proved itself. It's your rollback.