My line of work is abstract - I could name some items, but it would not help.
So, I have two nouns. They have a parent-child relationship. But lately I realize that it is sometimes unhelpful to treat these items as though they are separate. That is, the child's allowable behaviors are tightly controlled by the parent's.
'associated' and 'coupled' are too weak
'parasitic' has a negative connotation
'master/slave' ehhh no.
'major/minor' maybe but doesn't really imply behavior, and this is all about behavior.
And I need a word that describes the child item, and a word for the parent too. I could call the child node 'dependent' but then the parent node would be called ???