heuristic program vs heuristic rule

heuristic program and heuristic rule both are nouns.

Word	Noun	Adjective	Verb	Adverb
heuristic program	Yes	No	No	No
heuristic rule	Yes	No	No	No

As nouns, heuristic program and heuristic rule are synonyms defined as:

heuristic program and heuristic rule: a commonsense rule (or set of rules) intended to increase the probability of solving some problem

Other synonyms of heuristic program include heuristic.

heuristic program (noun)	heuristic rule (noun)
a commonsense rule (or set of rules) intended to increase the probability of solving some problem	a commonsense rule (or set of rules) intended to increase the probability of solving some problem