an association or linkage of two (or more) events

(see association)

A basic level of learning where the student can associate what has been learned, understood, and applied with previous or subsequent learning.

A technique for definining unique properties for a message known as a correlation type, used to associate it with a given instance of an orchestration, and the message's proper sequence as defined by a correlation set.

A correlation is a reciprocity (collineation from a projective space onto its dual space, taking points to hyperplanes and preserving incidence) with the identity as the associated automorphism.