Distinguish Bar by prior judgment from conclusiveness of judgment

REMEDIAL LAW QUESTION 1997

SUGGESTED ANSWER:

Bar by prior-judgment is the doctrine of res judicata, which bars a second action when there is identity of parties, subject matter and cause of action. (Sec. 49[b] of former Rule 39; Sec, 47 [b] of new Rule 39).

Conclusiveness of judgment precludes the relitigation of a particular issue in another action between the same parties on a different cause of action. (Sec. 49 [c] of former Rule 39; sec. 47 [c] of new Rule 39).