What is the difference between the new three theories and the old three theories?

1, "three theories" refers to: system theory, cybernetics and information theory;

2. "New Three Theories" refers to dissipative structure theory, synergy theory and catastrophe theory.

3, the difference between the two:

1), the founding time: "Three Theories" were founded in the 1940s, and "New Three Theories" were founded in the 1970s;

2) Different contents: the contents of "Three Theories" are information, control and system, and the contents of "New Three Theories" are dissipative structure, coordination and catastrophe theory.

3) Different abbreviations: the abbreviation of "Three Theories" is SCI, and the abbreviation of "New Three Theories" is DSC.

Compared with the "new three theories", "three theories" can also be called "old three theories", which is a branch of the three-door system theory. It was founded in the 1940s and developed rapidly. "New Three Theories" is a branch of the three-system theory that has been established and developed rapidly since 1970s.

Extended data:

The concrete explanation of "new three theories";

1, dissipative structure theory: a nonlinear open system far from equilibrium constantly exchanges matter and energy with the outside world. When the change of a parameter in the system reaches a certain threshold, the system may have a sudden change, that is, an unbalanced phase change, from the original chaotic state to an orderly state in time, space or function;

2. Synergy: pay attention to the similarity of various systems when they change from disorder to order;

3. Catastrophe theory: It is a subject that studies how the continuous gradual changes in nature and human society cause mutations or leaps, and strives to describe, predict and control these mutations or leaps with a unified mathematical model.

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