Migration should be done carefully: One should always keep a track of segments that are to be moved and the ones that have already been migrated.
Creating a backup: It is always good to create backups before starting the process. With a complete backup in hand, one can easily restore Enterprise data.
Validating the migrated content: Data gets processed easily only if there are no errors, so after migration, the content should be validated.
Launching Drupal store: After execution, a fully-fledged Drupal store should be launched that includes content types, simple and clear UI, advanced search option, enhanced usability, semantic markups and so on.
With this workflow, you can easily migrate to Drupal. It is very important to plan Drupal migration because it saves a lot of time. Depending on the level of complexity, you should look for a Drupal migration service provider who makes the experience manageable and easy.