Collocation

Collocation is the act of positioning close together (or side by side). It is used, for example, about the different instantiations of a work in a library catalog. (An instantiation is a representation of an idea, a subject, a concept or a work in the form of an instance of it; to represent an abstraction by a concrete instance).

In classifications are things (or concepts) collocated according to some criteria of likeliness.

Literature:

Smiraglia, R. P. (2001). The nature of “A Work”. Implications for the Organization of Knowledge. Lanham, Maryland: The Scarecrow Press, Inc.