Collocations for classification - noun

broad, general
detailed
simple
higher, lower
The rooms are of the standard expected from a hotel in a higher classification.

arbitrary
racial, social
job
security
a document with the security classification ‘confidential’

defy
a style of dancing that defies classification

make
develop, propose

scheme (BrE), system
error

classification into
the broad classification of music into classical and pop

a system of classification