canalisation vs channelisation

canalisation and channelisation both are nouns.

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

As nouns, canalisation and channelisation are synonyms defined as:

canalisation and channelisation: management through specified channels of communication

Other synonyms of canalisation include canalization, channelization.

canalisation (noun)	channelisation (noun)
the production of a canal or a conversion to canals	management through specified channels of communication
management through specified channels of communication