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A heterarchy is a system of organization where the elements of the organization are unranked (non-hierarchical) or where they possess the potential to be ranked a number of different ways. Definitions of the term vary among the disciplines: in social and information sciences, heterarchies are networks of elements in which each element shares the same "horizontal" position of power and authority, each playing a theoretically equal role. But in biological taxonomy, the requisite features of heterarchy involve, for example, a species sharing, with a species in a different family, a common ancestor which it does not share with members of its own family. This is theoretically possible under principles of "horizontal gene transfer."
A heterarchy may be parallel to a hierarchy, subsumed to a hierarchy, or it may contain hierarchies; the two kinds of structure are not mutually exclusive. In fact, each level in a hierarchical system is composed of a potentially heterarchical group which contains its constituent elements.
The concept of heterarchy was first employed in a modern context by Warren McCulloch in 1945. As Carole L. Crumley has summarised, "[h]e examined alternative cognitive structure(s), the collective organization of which he termed heterarchy. He demonstrated that the human brain, while reasonably orderly was not organized hierarchically. This understanding revolutionized the neural study of the brain and solved major problems in the fields of artificial intelligence and computer design."
In a group of related items, heterarchy is a state wherein any pair of items is likely to be related in two or more differing ways. Whereas hierarchies sort groups into progressively smaller categories and subcategories, heterarchies divide and unite groups variously, according to multiple concerns that emerge or recede from view according to perspective. Crucially, no one way of dividing a heterarchical system can ever be a totalizing or all-encompassing view of the system, each division is clearly partial, and in many cases, a partial division leads us, as perceivers, to a feeling of contradiction that invites a new way of dividing things. (But of course the next view is just as partial and temporary.) Heterarchy is a name for this state of affairs, and a description of a heterarchy usually requires ambivalent thought...a willingness to ambulate freely between unrelated perspectives.
Numerous observers in the information sciences have argued that heterarchical structure processes more information more effectively than hierarchical design. An example of the potential effectiveness of heterarchy would be the rapid growth of the heterarchical Wikipedia project in comparison with the failed growth of the Nupedia project. Heterarchy increasingly trumps hierarchy as complexity and rate of change increase.
Informational heterarchy can be defined as an organizational form somewhere between hierarchy and network that provides horizontal links that permit different elements of an organization to cooperate whilst individually optimizing different success criteria. In an organizational context the value of heterarchy derives from the way in which it permits the legitimate valuation of multiple skills, types of knowledge or working styles without privileging one over the other. In information science, therefore, heterarchy, responsible autonomy and hierarchy are sometimes combined under the umbrella term Triarchy.
This concept has also been applied to the field of archaeology, where it has enabled researchers to better understand social complexity. For further reading see the works of Carole Crumley.
Sociology and political theory
Anthropologist Dmitri Bondarenko follows Carole Crumley in her definition of heterarchy as "the relation of elements to one another when they are unranked or when they possess the potential for being ranked in a number of different ways" and argues that it is therefore not strictly the opposite of hierarchy, but is rather the opposite of homoarchy, which is itself defined as "the relation of elements to one another when they possess the potential for being ranked in one way only".
Political hierarchies and heterarchies are systems in which multiple dynamic power structures govern the actions of the system. They represent different types of network structures that allow differing degrees of connectivity. In a (tree-structured) hierarchy every node is connected to at most one parent node and zero or more child nodes. In a heterarchy, however, a node can be connected to any of its surrounding nodes without needing to go through or get permission from some other node.
Socially, a heterarchy distributes privilege and decision-making among participants, while a hierarchy assigns more power and privilege to the members high in the structure. In a systemic perspective, Gilbert Probst, Jean-Yves Mercier and others describe heterarchy as the flexibility of the formal relationships inside an organization. Domination and subordination links can be reversed and privileges can be redistributed in each situation, following the needs of the system.
A heterarchical network could be used to describe neuron connections or democracy, although there are clearly hierarchical elements in both.
- Crumley, Carole L. (January 1995). "Heterarchy and the Analysis of Complex Societies". Archeological Papers of the American Anthropological Association 6 (1): 1–5. doi:10.1525/ap3a.1922.214.171.124. Retrieved 26 February 2014.
- McCulloch (1945), "A heterarchy of values determined by the topology of nervous nets", pp. 89-93
- Crumley (1995), "Heterarchy and the analysis of complex societies", p. 3.
- Bruns (2008), Blogs, Wikipedia, Second Life and Beyond: From Production to Produsage, pp. 108-09.
- Bondarenko (2005), "A homoarchic alternative to the homoarchic state",[page needed]
- Bondarenko, Grinin, Korotayev (2002), ""Alternative pathways of social evolution", p. 55.
- Probst, Mercier, et al. (1992), Organisation et management[page needed].
- Bruns, Axel (2008). Blogs, Wikipedia, Second Life, and Beyond: From Production to Produsage, New York: Peter Lang.
- Crumley, Carole L. (1995). "Heterarchy and the Analysis of Complex Societies". Archeological Papers of the American Anthropological Association 7 (1): 1–5.
- Bondarenko, D.M. (2005). "A Homoarchic Alternative to the Homoarchic State: Benin Kingdom of the 13th - 19th Centuries". Social Evolution & History 4 (2): 18–88.
- Bondarenko, D.M. (2007). "What Is There in a Word? Heterarchy, Homoarchy and the Difference in Understanding Complexity in the Social Sciences and Complexity Studies". In K.A. Richardson and P. Cilliers (eds.). Explorations in Complexity Thinking: Pre-Proceedings of the 3rd International Workshop on Complexity and Philosophy. Mansfield, MA: ISCE Publishing. pp. 35–48.
- Bondarenko, D.M.; Grinin, L.E.; Korotayev, A.V. (2002). "Alternative Pathways of Social Evolution". Social Evolution & History 1: 54–79.
- Probst, Gilbert; Jean-Yves Mercier; Olivier Bruggimann; Aina Rakotobarison (1992). Organisation et management, Tome 3: guider le développement de l'entreprise. Paris: Editions d'Organisation. pp. 127–32.
- Kontopoulos, Kyriakos M., The Logics of Social Structure New York and Cambridge: Cambridge University Press, 1993 ISBN 0-521-03269-5
- McCulloch, Warren (1945). "A Heterarchy of Values Determined by the Topology of Nervous Nets". Bulletin of Mathematical Biophysics 7: 89–93.
- Stark, David (2009). The Sense of Dissonance: Accounts of Worth in Economic Life, Princeton University Press
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