initialisation vs data format

initialisation and data format both are nouns.

Word	Noun	Adjective	Verb	Adverb
initialisation	Yes	No	No	No
data format	Yes	No	No	No

As nouns, data format is a hypernym of initialisation; that is, data format is a word with a broader meaning than initialisation:

initialisation: (computer science) the format of sectors on the surface of a hard disk drive so that the operating system can access them and setting a starting position
data format: the organization of information according to preset specifications (usually for computer processing)

Other hypernyms of initialisation include data formatting, format, formatting.

initialisation (noun)	data format (noun)
(computer science) the format of sectors on the surface of a hard disk drive so that the operating system can access them and setting a starting position	the organization of information according to preset specifications (usually for computer processing)