ODM has a public facing repository of documentation available here:
https://support.quest.com/on-demand-migration/current/technical-documents
The latest version of the Best Practice document is available to all on this page.
This will download the PDF, and is currently not available for on-line viewing.
A subscription is required to download the document, if you are not able to download the document, kindly reach out to your respected Quest Sales Representative to grab it for you.