Recognition requires a subject to study a list of words. At test, the subject is given a second list of words - some of which appeared in the first list and some of which did not. The subjects' task is distinguish the targets (words that were on the list) from distractors (words that weren't on the list). Either they are asked to make a yes/no decision or they provide their confidence that the word is old (which might be rated on a five point scale, for instance). Recognition is considered a matching task because it relies upon a continuous form of information.
