Test automation and repeatability

: Automating the creation of standard parts like fasteners or brackets.

: The part was built in one assembly but moved to another without its references.

Since “NIP Activity” is not a standard CATIA term in mainstream documentation, I will assume you are referring to or a specialized thermal/structural activity within CATIA’s Generative Structural Analysis (GSA) or SIMULIA extensions, possibly under a “Hot” (thermal) environment.