Microvellum Community

Hardware Associative Drawing Name

Just going through our custom hardware we have in our system and noticed some of my 3D models are in "Non-Associative Drawing Name" and others are in "Associative Drawing Name".

What's the difference and why? 

I do know if my hardware name is different from my .DWG I just need to insert the name of the .DWG into the drawing name but again, what is the difference between the two?