software optimization vs program optimisation

software optimization and program optimisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
software optimization	Yes	No	No	No
program optimisation	Yes	No	No	No

As nouns, software optimization and program optimisation are synonyms defined as:

software optimization and program optimisation: the process of modifying a software system to make some aspect of it work more efficiently or use fewer resources.

Other synonyms of software optimization include program optimization, software optimisation.

software optimization (noun)	program optimisation (noun)
the process of modifying a software system to make some aspect of it work more efficiently or use fewer resources.	the process of modifying a software system to make some aspect of it work more efficiently or use fewer resources.