IMHO there's a difference - alternatives and options are the things that you consider and discuss might offer to the other party within a negotiation, they are a part of it.
BATNA, on the other hand, is outside of that negotiation, it is the thing that you'll actually do if the negotiation fails. This will not always will match your statements during the negotiation about what your options are, it's something purely in your mind to compare with the actual alternatives being negotiated and something which, unlike these alternatives, does not require a negotiated consent of the other party.
BATNA, on the other hand, is outside of that negotiation, it is the thing that you'll actually do if the negotiation fails. This will not always will match your statements during the negotiation about what your options are, it's something purely in your mind to compare with the actual alternatives being negotiated and something which, unlike these alternatives, does not require a negotiated consent of the other party.