program optimization vs program optimisation

program optimization and program optimisation both are nouns.

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

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

program 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 program optimization include software optimisation, software optimization.

program 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.