qualification vs revision

qualification and revision both are nouns.

Word	Noun	Adjective	Verb	Adverb
qualification	Yes	No	No	No
revision	Yes	No	No	No

As nouns, revision is a hypernym of qualification; that is, revision is a word with a broader meaning than qualification:

qualification: the act of modifying or changing the strength of some idea
revision: the act of revising or altering (involving reconsideration and modification)

Other hypernyms of qualification include alteration.

qualification (noun)	revision (noun)
the act of modifying or changing the strength of some idea	the act of revising or altering (involving reconsideration and modification)
an attribute that must be met or complied with and that fits a person for something	something that has been written again
a statement that limits or restricts some claim	the act of rewriting something