Hello,
Where I can find the SAP Business suite application version dependencies before I plan the upgrade? Is there any note or tool where I get the detailed information including which apps we have to upgrade first or which are together 
? Below are the applications we are planning to upgrade to latest available version:
- CRM, SRM, MDM, EP, ECC, SCM, BW, PI, TREX, SSM, BOBJ, NWDI.
Regards,
-Sunil