serviceability vs usableness

serviceability and usableness both are nouns.

Word	Noun	Adjective	Verb	Adverb
serviceability	Yes	No	No	No
usableness	Yes	No	No	No

As nouns, serviceability and usableness are synonyms defined as:

serviceability and usableness: the quality of being able to provide good service

Other synonyms of serviceability include serviceableness, usability, useableness.

serviceability (noun)	usableness (noun)
the quality of being able to provide good service	the quality of being able to provide good service