Definition of ordering noun from the Oxford Advanced Learner's Dictionary

ordering

noun
ˈɔːdərɪŋ
 
; ˈɔːrdərɪŋ
 
[countable, uncountable]
 
the way in which something is ordered or arranged; the act of putting something into an order
Synonym
arrangement
Many possible orderings may exist.the successful ordering of complex data