Bonita form migration from 6.x to 7.x

Do we need to create forms again while migrating forms from v6 to v7? or is there any other way of migrating?

Export and import all data from one server to other

I have to change my Bonita from one server to another (without changing version)

I think it's not enought to just export and import database because there are data contains into the webapp folder. Is there a complete documentation about that?

Thanks in advanced

PS : For information, I use Bonita 6.5 Community


How are changes to BDM handled?

How is the evolution of BDM handled? Adding or removing columns (fields), renaming, and other operations. I don't see any documentation on this. Is this done outside of Bonita by accessing the DB directly?