orderer vs systemiser

orderer and systemiser both are nouns.

Word	Noun	Adjective	Verb	Adverb
orderer	Yes	No	No	No
systemiser	Yes	No	No	No

As nouns, orderer and systemiser are synonyms defined as:

Other synonyms of orderer include systematiser, systematist, systematizer, systemizer.

orderer (noun)	systemiser (noun)
an organizer who puts things in order	an organizer who puts things in order
someone who places an order to buy