heuristic rule vs heuristic program

heuristic rule and heuristic program both are nouns.

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

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

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

Other synonyms of heuristic rule include heuristic.

heuristic rule (noun)	heuristic program (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