1. I've imported my database into a DDT profile.  I'm assuming that from this point on any changes I make to the database schema in my development environment should also be made in the DDT profile.  Is it best to try and keep the 2 insync manually or would it be better to make the changes to the DDT profile, create an installation package and deploy it to my development environment?

2. It appears the DDT can't create Logins at the database server level or Users at the database level or am I missing something.  It appears the only security it handles is for Microfour's Role-based Security tool.