lunes, abril 09, 2012

Complejidad


Encontré esta buena síntesis, que no reemplaza ninguno de los libros que HAY QUE procesar para entender este enfoque.
FUENTE: AQUÍ

So what is a complex system? The field is still very new and there is no agreement about terms and terminology but the following quotes start to give a flavour:
…a system that is complex, in the sense that a great many independent agents are interacting with each other in a great many ways. (Waldrop 1993:11)
…to understand the behavior of a complex system we must understand not only the behaviour of the parts but how they act together to form the whole. (Bar-Yam, 1997:1)
…you generally find that the basic components and the basic laws are quite simple; the complexity arises because you have a great many of these simple components interacting simultaneously. The complexity is actually in the organization—the myriad possible ways that the components of the system can interact. (Stephen Wolfram, quoted in Waldrop 1993:86)
Complex adaptive systems consist of a number of components, or agents, that interact with each other according to sets of rules that require them to examine and respond to each other’s behaviour in order to improve their behaviour and thus the behaviour of the system they comprise. (Stacey: 1996:10)
…the complex whole may exhibit properties that are not readily explained by understanding its parts. The complex whole, in a completely nonmystical sense, can often exhibit collective properties, "emergent" features that are lawful in their own right. (Kauffman 1996:vii-viii)
The task of formulating theory for CAS [complex adaptive system] is more than usually difficult because the behaviour of a whole CAS is more than a simple sum of the behaviours of its parts; CAS abound in nonlinearities… (Holland 1995:5)
…complexity is not located at a specific, identifiable site in a system. Because complexity results from the interaction between the components of a system, complexity is manifested at the level of the system itself. There is neither something at a level below (a source), nor at a level above (a meta-description), capable of capturing the essence of complexity. (Cilliers 1998:2-3).