The ranks go like this:
Boss
Underboss
Capo
Made Guy or wise guy
Associate or connected guy

The Consiglieri is up there with the underboss but technically is not in the chain of command but an advisor to the boss and settler of disputes among members. Associates, if they are good earners can have as much value to a family as a made member. When the books are open, the family is accepting new members. The rules are; you are in til you die, Omerta or silence (a joke nowadays), you cannot raise a hand to another member of any family, you cannot kill another member of any family without OK from the boss, you cannot fool around with another member's wife. The ritual we have all seen in movies is used by the NY families but some others eg. Chicago don't bother with it.