Technical system

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Technical system is an interdisciplinary basic term used to describe technical products.

As a comprehensive objective term, it is used to identify the association of several technical components (machines, devices, components, etc.) in a larger unit (system, machine, device, etc.). The systems theorist Günter Ropohl chose the term technical system of things for this .

In the sense of system-theoretical abstraction, a technical system is an image ( model ) of a generally complex technical product. The interactions between the components of the system and between the system and its environment are mapped and examined. The interactions occur through the flow of material , energy and / or information .

The input and output values ​​of the flows through a system (or through a component) are considered. The relationship between the two variables, which usually changes over time, is represented with the help of the so-called transfer function .

Eingang ------------Verarbeitung/Verknüpfung---------Ausgang
Stoff       →                                      → Stoff
Energie     →                                      → Energie
Information →                                      → Information

Components or possible subsystems of a system are often ignored. The system is then

  • delimited from the outside,
  • usually has only one entrance and one exit,
  • fulfills a function in which input and output variables are linked to one another (for example: control, regulation),
  • whereby the individual functions within the system are ignored.

A technical system can be divided as follows:

System → Setup → Group → Element
  • System: Entire unit of the order fulfillment facility;
  • Equipment: independently usable unit within a system (sub-function)
  • Group: unit within an institution that cannot yet be used independently
  • Element: smallest indivisible unit in a group.


  • G. Ropohl: General technology: A systems theory of technology . Munich / Vienna 1979

Individual evidence

  1. ^ H. Czichos, Mechatronik , Springer
  2. There is no pure flow of information, information is sometimes bound to a small amount of material, but mostly to a small amount of energy.