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Jointly Exhaustive Classification System

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PPGPortal > Home > Concept Dictionary > I, J > Jointly Exhaustive Classification System

Jointly Exhaustive Classification System 

A type of classification system in which all possible items in the domain can be accommodated somewhere in the system.

(Matt Ratto, Toronto, FIS1210)


For example, if one were classifying furniture in such a way, it would be necessary for there to be an appropriate “space” in which chairs could be classified. If "chairs" could not be included in a classification of types of furniture, the classification system would not be jointly exhaustive.

An important problem with joint exhaustivity as a principle of a classification system is that it is sometimes difficult to be certain that all existing items in the domain have been included. To return to the previous example, it may be impossible to be sure that all existing kinds of furniture are included. A related problem may occur when a new type of the thing that is being classified is either discovered or invented.


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