Check DATA
The best proof it the fact that process could fun without error or that errors can be understood and accepted.
As a precautionary measure, you run a quick tour and check that upgraded data looks correct. Of course, this kind of check cannot be exhaustive, but it usually enables to have a first feedback and confirm migration process went well.
Example of scenario:
• Open a private workspace (ex-transaction).
• Browse through objects using query tools, navigation trees and diagrams.
• Perform insignificant updates (ex: change a character in a comment value, slightly move an object in a diagram...).
• Dispatch private workspace.