BCSSS

International Encyclopedia of Systems and Cybernetics

2nd Edition, as published by Charles François 2004 Presented by the Bertalanffy Center for the Study of Systems Science Vienna for public access.

About

The International Encyclopedia of Systems and Cybernetics was first edited and published by the system scientist Charles François in 1997. The online version that is provided here was based on the 2nd edition in 2004. It was uploaded and gifted to the center by ASC president Michael Lissack in 2019; the BCSSS purchased the rights for the re-publication of this volume in 200?. In 2018, the original editor expressed his wish to pass on the stewardship over the maintenance and further development of the encyclopedia to the Bertalanffy Center. In the future, the BCSSS seeks to further develop the encyclopedia by open collaboration within the systems sciences. Until the center has found and been able to implement an adequate technical solution for this, the static website is made accessible for the benefit of public scholarship and education.

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

VENN DIAGRAM 2)

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A two-dimensional graphical representation of the intersections of different sets.

The representation is based on intersecting closed curves representing the various areas corresponding for example to a,non-b,non-c; a,b,non-c; a,b,c;… non-a,b,c; etc…

However, the great difficulty was to represent the intersections of more that 3 sets. This problem has now been solved by A. EDWARDS of the Gonville and Caius College of Cambridge University, England (1989, p.51-6). EDWARDS uses "toothed" curves, by means of which he obtains a kind of fractalization algorithm that allows for the highly symmetrical representation of the intersections of any number of sets. These VENN-EDWARDS diagrams are a great help for visualizing complex interrelations between many systems.

Multidimensional and multi-layered Venn diagrams are now used to classify complex and overlapping statistical data.

Patrick BALL, deputy director of the Science and Human Rights Program of the MAS is using this kind of diagrams to order the multiple data about diffrent types of violations of human rights by different people or groups in many places and times (W. GROSSMANN, 2003, p. 48-51)

This method is useful to control reliability of testimonies and obtain an evaluation of the density of reporting in specific cases.

Categories

  • 1) General information
  • 2) Methodology or model
  • 3) Epistemology, ontology and semantics
  • 4) Human sciences
  • 5) Discipline oriented

Publisher

Bertalanffy Center for the Study of Systems Science(2020).

To cite this page, please use the following information:

Bertalanffy Center for the Study of Systems Science (2020). Title of the entry. In Charles François (Ed.), International Encyclopedia of Systems and Cybernetics (2). Retrieved from www.systemspedia.org/[full/url]

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