Workflow integration

Performing a migration process may involve steps other than the actual migration of the data. One that keeps popping up is that certain modules can seriously slow down, say, node_save() (calias and pathauto, for example). When testing migration (unless you're testing that particular functionality), you want them disabled. And even on final migration, you want them disabled during migration, then enable and run bulk updates after all your nodes are created.

Also, you may have different migration processes you want to run. At times you'll just be migrating, say, articles and blog entries; at other times, users and subscriptions. Right now you need to go to the dashboard page, click the right set of toggles, and go. It'd be nice to just click one button for whichever process you want.

So, I want to integrate the migrate module with a workflow module (I'm planning on looking at Rules first, but welcome any other suggestions). The primary requirement is to be able to define any number of processes, each of which can consist of a number of steps that include things like clearing or importing a specified content set, enabling or disabling a module, setting a Drupal variable, etc. Ideally it would also support pausing for manual steps with notification - sometimes you really need to take a manual action in the middle of a migration, thus if the workflow can pause itself and notify you of that action, that would be very nice.

Any and all thoughts about this proposal welcome...