Hello Community, 
this is my first post. I use Catia V6 (3DX).
I would like to learn how to use parametrics when creating assemblies. 
Are there any documents on this or does anyone know of a useful tutorial? 
What is the best way for self studie?
What kind of apps do i need? Assembly Design and Engineering Rules Capture?
Thanks in advance.
Best regards 
Marvin T 
Assembly Designparametric