channelisation vs channelization

channelisation and channelization both are nouns.

Word	Noun	Adjective	Verb	Adverb
channelisation	Yes	No	No	No
channelization	Yes	No	No	No

As nouns, channelisation and channelization are synonyms defined as:

channelisation and channelization: management through specified channels of communication

Other synonyms of channelisation include canalisation, canalization.

channelisation (noun)	channelization (noun)
management through specified channels of communication	management through specified channels of communication