INPUT-OUTPUT MATRIXES
Charles François (2004). INPUT-OUTPUT MATRIXES, International Encyclopedia of Systems and Cybernetics, 2(1): 1711.
| Collection | International Encyclopedia of Systems and Cybernetics |
|---|---|
| Year | 2004 |
| Vol. (num.) | 2(1) |
| ID | ◀ 1711 ▶ |
| Object type | Discipline oriented |
The representation through a table with lines and columns of flows within a system.
This method has been introduced in economy by W. LEONTIEFF (1956).
The flows can be of matter, energy or information and take place between structural elements in the system. These matrixes are an alternative representation for network diagrams, totally or partly. As stated by H. ODUM: “Representing systems in this way is a first step in the use of techniques of matrix algebra by systems analysts”. He adds, however: “A pertinent step after description as a matrix is to count the possible relationships that may have been overlooked” (1971, p.21).
This is indeed a many times forgotten necessity.