Definition of set points:
(n) :
(tennis, volleyball) A situation where if one of the two players wins the next point, (s)he will win the set (but not the match).
(n) :
Used other than figuratively or idiomatically: see set, point. (a setting or location that is fixed)
(n) :
Alternative form of setpoint (“command signal fed into a controller”). [The command signal or value which is fed into a controller to establish the target or desired position or state of the controlled device or process.]