This is very good blog about Microsoft Dynamics AX 2012 include posts for Active Directory Federations Services,Step by step import with Data Migration Framework - AX 2012 and some other interesting posts with details and step by step description.
Click below link to visit this blog.
http://singuraghavendar.blogspot.com
Click below link to visit this blog.
http://singuraghavendar.blogspot.com