Categorization

Categorization is the process in which ideas and objects are recognized, differentiated, and understood.[1] Categorization implies that objects are grouped into categories, usually for some specific purpose. Ideally, a category illuminates arelationship between the subjects and objects of knowledge. Categorization is fundamental in language, prediction,inference, decision making and in all kinds of environmental interaction. It is indicated that categorization plays a major role in computer programming.[2]
http://en.m.wikipedia.org/wiki/Categorization